sam3u-ek evaluation kit - microchip...

SAM3U-EK Evaluation Kit....................................................................................................................

User Guide

6478F–ATARM–25-Jul-11

1-2 SAM3U-EK Evaluation Kit User Guide


Section 1Introduction.................................................................................................................1-1

1.1 SAM3U Evaluation Kit........................................................................................................ 1-1

1.2 User Guide......................................................................................................................... 1-1

1.3 References and Applicable Documents ............................................................................. 1-1

Section 2Kit Contents ................................................................................................................2-1

2.1 Deliverables ....................................................................................................................... 2-1

2.2 Electrostatic Warning ......................................................................................................... 2-2

Section 3Power Up....................................................................................................................3-1

3.1 Power up the Board ........................................................................................................... 3-1

3.2 Battery................................................................................................................................ 3-1

3.3 DevStart ............................................................................................................................. 3-1

3.4 Recovery Procedure .......................................................................................................... 3-1

3.5 Sample Code and Technical Support ................................................................................ 3-2

Section 4Evaluation Kit Hardware .............................................................................................4-1

4.1 Board Overview.................................................................................................................. 4-1

4.2 Features List ...................................................................................................................... 4-2

4.3 Function Blocks.................................................................................................................. 4-2

4.3.1 Processor............................................................................................................. 4-2

4.3.2 Memory................................................................................................................ 4-2

4.3.3 Clock Circuitry...................................................................................................... 4-4

4.3.4 Reset and Wake-Up Circuitry .............................................................................. 4-5

4.3.5 Power Supply and Management.......................................................................... 4-6

4.3.6 UART ................................................................................................................... 4-7

4.3.7 USART................................................................................................................. 4-7

4.3.8 LEDs .................................................................................................................... 4-8

4.3.9 LCD, Backlight Control and Touch Panel ............................................................ 4-8

4.3.10 JTAG.................................................................................................................. 4-11

4.3.11 Audio Codec ...................................................................................................... 4-11

4.3.12 USB ................................................................................................................... 4-13

4.3.13 ADC Input ........................................................................................................ 4-14

4.3.14 User Buttons ...................................................................................................... 4-14

4.3.15 G-Sensor ........................................................................................................... 4-15

4.3.16 Temperature Sensor.......................................................................................... 4-16

4.3.17 SD Card ............................................................................................................. 4-16

SAM3U-EK Evaluation Kit User Guide 1-1


4.3.18 ZigBee ............................................................................................................... 4-17

4.3.19 PIO Expansion................................................................................................... 4-18

4.4 Configuration.................................................................................................................... 4-19

4.4.1 PIO Usage ......................................................................................................... 4-19

4.4.2 Jumpers ............................................................................................................. 4-22

4.4.3 Test Points......................................................................................................... 4-23

4.4.4 Solder Drops...................................................................................................... 4-23

4.4.5 Assigned PIO Lines, Disconnection Possibility.................................................. 4-23

Section 5Schematics .................................................................................................................5-1

5.1 Schematics......................................................................................................................... 5-1

Section 6Troubleshooting..........................................................................................................6-1

6.1 Self-Test............................................................................................................................. 6-1

6.2 Board Recovery ................................................................................................................. 6-1

Section 7Errata ..........................................................................................................................7-1

7.1 JTAG/ICE: Missing Pull-up Resistor on TDO Pin............................................................... 7-1

Section 8Revision History..........................................................................................................8-1

8.1 Revision History ................................................................................................................. 8-1



Section 1

Introduction

1.1 SAM3U Evaluation Kit

The SAM3U Evaluation Kit (SAM3U-EK) allows the evaluation of the SAM3U series devices. It has enough features to demonstrate most of the product’s capabilities to the users. The SAM3U-EK also fea-tures extension connectors to allow the users to add new interfaces in case they are not on-board.

1.2 User Guide

This guide gives details on how the SAM3U-EK has been designed. It is made up of 6 sections:

Section 1 includes references, applicable documents.

Section 2 describes the kit contents, its main features.

Section 3 provides instructions to power up the SAM3U-EK and describes how to use it.

Section 4 describes the hardware resources, and includes default jumper and switch settings, and the schematics.

Section 5 provides all the board schematics.

Section 6 gives troubleshooting recommendations.

1.3 References and Applicable Documents

Table 1-1. References and Applicable Documents

Title Comment

SAM3U Datasheet SAM3U products on Atmel Web site



http://www.atmel.com/dyn/products/devices.asp?category_id=163&family_id=605&subfamily_id=2086&source=left_nav

Section 2

Kit Contents

2.1 Deliverables

The Atmel® SAM3U-EK toolkit contains the following items:

a SAM3U-EK board

power supply

universal input AC/DC power supply with US, Europe and UK plug adapters

one 3V Lithium Battery type CR1225

one USB cable

one serial RS232 cable

A Welcome Letter

Figure 2-1. Unpacked SAM3U-EK

Unpack and inspect the kit carefully. Contact your local Atmel distributor, should you have issues con-cerning the contents of the kit.



Kit Contents

2.2 Electrostatic Warning

The SAM3U-EK board is shipped in a protective anti-static package. The board must not be subjected to high electrostatic potentials. A grounding strap or similar protective device should be worn when han-dling the board. Avoid touching the components or any other metallic element of the board.



Section 3

Power Up

3.1 Power up the Board

Unpack the board taking care to avoid electrostatic discharge. Unpack the power supply, select the right power plug adapter corresponding to that of your country, and insert it in the power supply.

Connect the power supply DC connector to the board and plug the power supply to an AC power plug.

The board LCD should light up and display a welcome page. Then, click or touch icons displayed on the screen and enjoy the demo.

3.2 Battery

The SAM3U-EK ships with a 3V coin battery.

This battery is not required for the board to start up.

The coin battery is provided for user convenience in case the user would like to exercise the date and time backup function of the SAM3U series devices when the board is switched off.

3.3 DevStart

The on-board NAND Flash contains “SAM3U-EK DevStart”.

It is stored in the “SAM3U-EK DevStart” folder on the USB Flash disk available when the SAM3U-EK is connected to a host computer and you click on the Flash Disk icon of the on-board demo.

Click the file “welcome.html” in this folder to launch SAM3U-EK DevStart.

SAM3U-EK DevStart guides you through installation processes of IAR™ EWARM, Keil MDK and GNU toolkits. Then, it gives you step-by-step instructions on how to rebuild a single example project and how to program it into the SAM3U-EK. Optionally, if you have a SAM-ICE™, instructions are also given about how to debug the code.

We recommend that you backup the “SAM3U-EK DevStart” folder on your computer before launching it.

3.4 Recovery Procedure

The DevStart ends by giving step-by-step instructions on how to recover the SAM3U-EK to the state as it was when shipped by Atmel.

Follow the instructions if you deleted the contents of the embedded Flash or the NAND Flash and want to recover from this situation.



Power Up

3.5 Sample Code and Technical Support

After boot up, you can run some sample code or your own application on the development kit. You can down load sample code and ge t techn ica l suppor t f rom Atme l webs i te http://www.atmel.com/products/at91/default.asp?category_id=163&family_id=605&source=left_nav

Figure 3-1. Atmel Website for SAM3U Series



Section 4

Evaluation Kit Hardware

4.1 Board Overview

This section introduces the Atmel SAM3U Evaluation Kit design. It introduces system-level concepts, such as power distribution, memory, and interface assignments.

The SAM3U-EK board is based on the integration of an ARM® Cortex®-M3 processor with on-board fast PSRAM (pseudo-static RAM), NAND Flash and a set of popular peripherals. It is designed to provide a high performance processor evaluation solution with high flexibility for various kinds of applications.

Figure 4-1. SAM3U-EK Block Diagram

PIO

SAM3U-LQFP144SAM3U

SWJ-DPUART

System ControllerSystem Controller

External MemoryExternal Memory

EBI / 3.3vEBI / 3.3v

PSRAM

NAND FLASH

Multimédia Cards InterfaceMultimedia Cards Interface

MCIMCI

USARTUSART USB

USB

Device Device

PIOPIO

TWITWI

oooooooooooooooo

4/8 bits interface SD/MMC

Micro

Line In

HeadPh

oooooooooooooooo

LCD TFT 240 * 320

LCD TFT 240 * 320

PWMPWM

RS232

CodecWM8731

Led

User I/OAudioMultimedia CardTFT LCDMain Memory

Touch Screen

Touch Screen

BNC * 2VCC 5V JTAGRS232USB DeviceHigh / Full

RS232ZIGBEET°

Power / Shdn

Push Btn

ADS7843ADS7843

HX8347HX8347

SPISPI

CD

SSCSSC

oooooooooo

ZIGBEEZIGBEE

AnalogAnalog

TWITWI

MCP9800

Back LightAAT3194

RS232




4.2 Features List

Here is the list of the main board components and interfaces:

SAM3U4E QFP chip with optional socket footprint

12 MHz crystal

32.768 KHz crystal

Optional SMB connector, for external system clock input

PSRAM

NAND Flash

Backup Battery

2.8 inch TFT color LCD display with touch-panel and backlight

UART port with level shifter IC

USART port with level shifter IC

Audio codec with input and output jacks: stereo headphone out, stereo line in, mono microphone in

SD/MMC interface

3-D accelerometer sensor

Temperature sensor

Reset and Wake-Up buttons: NRST, NRSTB, FWUP

User buttons: Left and Right

High Speed USB device port

JTAG port

On-board power regulation with shutdown control (by the SAM3 chip)

Two user LEDs

Power LED

BNC connectors for ADC input

User potentiometer connected to the ADC input

ZigBee® connector

3x32 bit PIO connection interfaces (PIOA, PIOB, PIOC)

4.3 Function Blocks

4.3.1 Processor

The SAM3U-EK is equipped with a SAM3U4E in LQFP144 package.

4.3.2 Memory

The SAM3U4E chip embeds:

256 Kbytes of embedded Flash

48 Kbytes of embedded SRAM with dual bank

16 Kbytes of ROM with embedded bootloader routines (UART, USB) and IAP (In-Application Programming functions) routines.




The SAM3U4E features an External Bus Interface (EBI) that permits interfacing to a broad range of external memories and virtually to any parallel peripheral. The SAM3U-EK board is equipped with two kinds of memory devices connected to the SAM3U4E EBI:

One 512K x16 PSRAM device(1)

One NAND Flash MT29F2G16ABD.

Figure 4-2. PSRAM

Note: 1. Brand and reference may vary. Check the bill of materiel (BOM) corresponding to your kit version to get precise information regarding that matter.

D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15

A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16A17A18A19

NBS0NBS1

NCS0NRDNWE

PB9PB10PB11PB12

PB16

PB13

PB15PB14

PB28

PB25

PB27

PB6

PB29

PB26

PB30PB31

PC2

PC20

PC1

PC6

PC3

PC0

PC21

PC4

PC8

PC10

PC22

PC5

PC11

PC7

PC9

PC25PC24PC23

PB19PB23

PC15

PB8

PB7PB19PB20PB23

PB7

PB20

+3V3 +3V3

+3V3

DGND

PB[31:0]

PC[31:0]

R1147KR1147K

JP12JPJP12JP

C28100nFC28100nF

C291uFC291uF

R1047KR1047K

MN2PSRAM 512K x16MN2PSRAM 512K x16

A03

A14

A25

A39

A410

A515

A616

A722

A844

A945

A1046

A1147

A1239

A1340

A1433

A1534

A1628

A1721

A1843

DQ012

DQ117

DQ218

DQ323

DQ429

DQ535

DQ636

DQ742

DQ87

DQ913

DQ1014

DQ1120

DQ1226

DQ1332

DQ1431

DQ1537

LB#1

UB#8

CE#11

OE#2

WE#41

NC127

NC238

NC348

VCC24

VCCQ25

VSS30

VSSQ19

ZZ#6




Figure 4-3. NAND Flash

The chip select signals NCS0 and NCS1 are used for PSRAM and NAND Flash chips selection, respec-tively. Furthermore, a dedicated jumper can disconnect these from the memories, to let NCS0 and NCS1 be used for other custom purpose.

4.3.3 Clock Circuitry

The clock generator of a SAM3U4E microcontroller is made up of:

A Low Power 32,768 Hz Slow Clock Oscillator with bypass mode

A 3 to 20 MHz Crystal Oscillator, which can be bypassed (12 MHz needed in case of USB)

A factory programmed fast internal RC Oscillator. 3 output frequencies can be selected: 4, 8 or 12 MHz (default value is 4 MHz).

A 480 MHz UTMI PLL providing a clock for the USB High Speed Device Controller

A 96 to 192 MHz programmable PLL (input from 8 to 16 MHz), capable of providing the clock MCK to the processor and to the peripherals.

The SAM3U-EK board is equipped with one 12 MHz crystal, one 32,768 Hz crystal and an external clock input connector (optional, not populated by default).

P B 21P B 22

P B 18

P B 17P B 24

P B 6P B 31P B 30P B 16P B 15P B 14P B 13P B 29

P B 28P B 12P B 11P B 10P B 9P B 27P B 26P B 25

P C 12

+3V3 +3V3

+3V3

DG ND

+3V3

DG ND

+3V3

P B [31:0]

P C [31:0]

NANDRDYNANDOE

NANDCL ENANDAL ENANDWE

NCS 1

R 18DNPR 18DNP

C 30100nFC 30100nF

C 33100nFC 33100nF

C 31100nFC 31100nF

R 17 47KR 17 47K

R 1347KR 1347K

R 1247KR 1247K

C 32100nFC 32100nF

R 14 0RR 14 0R

J P 13J PJ P 13J P

MN3MT 29F 2G 16AADW PMN3MT 29F 2G 16AADW P

NC 11

NC 22

NC 33

NC 44

NC 55

NC 66

R /B #7

R E #8

C E #9

NC 710

NC 811

VC C 112

VS S 113

NC 914

NC 1015

C LE16

ALE17

W E #18

W P #19

NC 1120

NC 1221

NC 1322

NC 1423

NC 1524 VS S 2 25IO8 26IO9 27

IO10 28IO0 29IO1 30IO2 31IO3 32

IO11 33VC C 2 34NC 16 35VS S 3 36VC C 3 37NC 17 38VC C 4 39

IO12 40IO4 41IO5 42IO6 43IO7 44

IO13 45IO14 46IO15 47

VS S 4 48




Figure 4-4. External Clock Source

4.3.4 Reset and Wake-Up Circuitry

The on-board NRST button BP1 and NRSTB button BP2 provide the SAM3U4E with external reset con-trol. The on-board WAKE-UP button BP3 can be used to wake up the chip from low power modes.

Figure 4-5. System Buttons

The NRST pin is bidirectional. It is handled by the on-chip reset controller. It can be driven low to provide a reset signal out to the external components. Conversely, it can be asserted low from the outside to reset the microcontroller, its core and peripherals, Backup region (RTC, RTT and Supply Controller) excepted. The NRST pin integrates a permanent pull-up resistor of about 100 kOhm to VDDIO.

On the SAM3U-EK board, the NRST signal is connected to the LCD module and JTAG port.

The NRSTB pin is an input-only signal that enables the asynchronous reset of the SAM3U4E series when asserted low. The NRSTB pin integrates a permanent pull-up resistor of about 15 kOhm. This allows the connection of a simple push button for implementing a system-user reset. Whatever the mode, this pin will reset the chip including the Backup region (RTC, RTT and Supply Controller). It makes the chip behave as for a Power-on reset. An external capacitor (10 nF) is connected between NRSTB and VDDIO to enforce the signal stability on this pin.

XIN32

XIN1

XOUT 32

XOUT 1

XOUT 1XIN1

XOUT 32XIN32

DG ND

DG ND

DG ND

DG ND

XINXOUT

XIN32XOUT 32

C 2620pFC 2620pF

R 7 0RR 7 0R

Y 112.000MHz

Y 112.000MHz

C 2520pFC 2520pF

MN1BS AM3UMN1BS AM3U

XIN32144

XOUT 32143

XIN36

XOUT35

G ND118

G NDP LL33

G NDUT MI43

G ND252

G ND360

G NDANA75

G ND490

G ND5126

G NDB U140

C 2720pFC 2720pF

R 6 0RR 6 0R

Y 232.768K Hz

Y 232.768K Hz

12

3

C 2420pFC 2420pF

J 1J 1

12 3

54

R 8 DNPR 8 DNP

DG ND

VB U

NR S T

NR S T B

F W UPWAKE _UP#

B P 2B P 21

423

B P 1B P 11

423

B P 3B P 31

423

R 65100KR 65100K




The FWUP pin is Force Wake-Up active low input. It is enabled as a wake-up source with external pull-up. If the FWUP pin is asserted for a time longer than the debouncing period (configurable for 100 µs, 1 ms, 16 ms, 128 ms or 1 second), a core power supply wake-up is initiated.

4.3.5 Power Supply and Management

The SAM3U-EK board is supplied with an external 5V DC block through input J11. Protection circuitry is obtained by a PolyZen diode MN13 and an LC combinatory filter MN14.

The adjustable LDO regulator MN12 is employed for the main supply of the 3.3V rail. It powers all the 3.3V board components. The shut down control of this LDO is made by MOSFETs Q1, Q2 piloted by the SAM3U4E SHDN pin. When SAM3U4E is in backup mode, SHDN pin outputs a low level signal, which shuts down the LDO. When the device is running (not in backup mode), SHDN pin output a high level signal, which enables the LDO.

By closing the “FORCE POWER ON” jumper JP17, the P-channel MOSFET Q1 will be forced on, no matter the level present on the SHDN pin, and the LDO 3.3V output will thereby be forced active.

Figure 4-6. Power Block

The SAM3U-EK board uses the 3.3V LDO output as its main supply source. VDDUTMI, VDDANA, VDDIO, VDDIN are powered directly from that source.

The internal 1.8V regulator output feeds VDDCORE and VDDPLL.

VDDCORE and VDDPLL can also be powered by an external supply. (Refer to the SAM3U datasheet for more details).

VDDBU pin is powered from the 3.3V rail and a backup battery BT1 via a dual Schottky diode D6.

P W R _C N

P W R _C N

DG ND

+5V +5V

DG ND

+3V3

+5V

DG ND

DG ND

+3V3 +5V

DG ND

DG NDS HDN

D12B VR E F

ADVR E F+3V3

+3V3

+2V5

+2V5

C 92100nFC 92100nF

C 104100nFC 104100nF

MN13ZE N056V130A24LSMN13ZE N056V130A24LS

1

2

3

� C 95100uF

� C 95100uF

R 904.7KR 904.7K

MN12MIC 29152W UMicrel's 1.5A LDO, T O263-5

MN12MIC 29152W UMicrel's 1.5A LDO, T O263-5

VIN2 VOUT 4

S D1

GN

D1

3

ADJ 5

GN

D2

6

C 96100nFC 96100nF

T P 3+3V3T P 3+3V3

R 8010KR 8010K

Q2IR LML2502

Q2IR LML2502

1

3

2

J P 20J UMP _3J P 20J UMP _3

12

3

R 77200R 1%R 77200R 1%

J P 17J PJ P 17J P

C 9415pFC 9415pF

T P 4+5VT P 4+5V

MN14B NX002-01MN14B NX002-01

S V1

S G2

C V 3

C G 1 4

C G 2 5

C G 3 6

� C 9322uF

� C 9322uF

R 79100KR 79100K

C 103100nFC 103100nF

R 78100KR 78100K

J P 5J UMP _3J P 5J UMP _3

12

3

J 11MP 179P 2.1mmJ 11MP 179P 2.1mm

12

3 R 76330R 1%R 76330R 1%

MN15LM4040-2.5

MN15LM4040-2.5

Q1IR LML6401Q1IR LML6401

1

32




Figure 4-7. Backup Battery

4.3.6 UART

The Universal Asynchronous Receiver Transmitter features a two-pin UART that can be used for com-munication and trace purposes. It offers an ideal channel for in-situ programming solutions. This UART is associated with two PDC channels to reduce the processor time on packet handling.

This two-pin UART (TXD and RXD only) is buffered through an RS232 Transceiver MN6 and brought to the DB9 male connector J3.

Figure 4-8. UART

4.3.7 USART

The Universal Synchronous/Asynchronous Receiver Transmitter (USART) provides one full duplex uni-versal synchronous/asynchronous serial link. The data frame format is extensively configurable (data length, parity, number of stop bits) to support a broad range of serial communication standards. The USART is also associated with PDC channels for TX/RX data access.

There are 3 USARTs on the SAM3U4E device, SAM3U-EK connects the USART1 bus (including TXD, RXD, RTS, CTS handshake signals control) to the DB9 male connector J4 through the RS232 Trans-ceiver MN7.

+3V3

DG ND

VB U

DG ND

D6B AT 54CD6B AT 54C

32

1

MN1BS AM3UMN1BS AM3U

VDDB U 139

CR1225

3V

B T 1K Y 001

CR1225

3V

B T 1K Y 001

+1 - 2

33 4 4C 211uFC 211uF

J P 4J PJ P 4J P

P A12P A11

DG ND

+3V3

DG ND

+3V3 +3V3

P A[31:0]

UTXDURXD

C 45100nFC 45100nF

C 44100nFC 44

100nF

C 46100nFC 46100nF

R 33 0RR 33 0R

MN6MAX3232C S EMN6MAX3232C S E

T 1IN11

T 2IN10R 1OUT12

R 2OUT9

T 1OUT 14

T 2OUT 7R 1IN 13

R 2IN 8

V+2

C 1+ 1

C 1- 3

C 2+ 4

C 2- 5

V-6

VC C16

G ND15

C 48100nFC 48100nFR 31

100KR 31100K

J 3MALE R IG HT ANG LE DJ 3MALE R IG HT ANG LE D

5

4

3

2

1

9

8

7

6

10 11

C 47100nFC 47100nF

R 103 0RR 103 0R

T P 17S MDT P 17S MD


R 32100KR 32100K




Figure 4-9. USART

4.3.8 LEDs

There are three LEDs on the SAM3U-EK board:

D2 and D3 green LEDs are user defined and controlled by the GPIO.

D4 red LED is a power LED indicating that the 3.3V rail is enabled. It can also be controlled by the GPIO (by default, the GPIO is disabled and an on-board pull-up to 3.3V lights the LED).

Figure 4-10. LEDs

4.3.9 LCD, Backlight Control and Touch Panel

SAM3U-EK carries one TFT/Transmissive LCD module with touch screen, FTM280C12D, with inte-grated driver IC HX8347. The LCD display size is 2.8 inches, with a native resolution of 240 x 320 pixels.

P A22P A21P A20

P A23

+3V3

DG NDDG ND

+3V3 +3V3

P A[31:0]

TXD1RXD1RTS1CTS 1


C 52100nFC 52100nF

C 50100nFC 50100nF

MN7MAX3232C S EMN7MAX3232C S E

T 1IN11

T 2IN10R 1OUT12

R 2OUT9

T 1OUT 14

T 2OUT 7R 1IN 13

R 2IN 8

V+2

C 1+ 1

C 1- 3

C 2+ 4

C 2- 5

V-6

VC C16

G ND15

C 51100nFC 51100nF

R 104 0RR 104 0R

C 49100nFC 49

100nF

R 105 0RR 105 0R

R 34100KR 34100K

C 53100nFC 53100nFR 35

100KR 35100K

J 4MALE R IG HT ANG LE DJ 4MALE R IG HT ANG LE D

5

4

3

2

1

9

8

7

6

10 11


P B 1

P B 2

P B 0

P B 5P B 4

DG ND

+3V3

P B [31:0]

US R_L E D1#

US R_L E D2#

POWE R_L E D#

D2 green-led

0603

D2 green-led

0603

R 89 100KR 89 100K

D4 red-led

0603

D4 red-led

0603

R 87220RR 87220R

Q3IR LML2502

Q3IR LML2502

1

32

R 92220RR 92220R

R 85220RR 85220R

D3 green-led

0603

D3 green-led

0603




The LCD module gets its reset from NRST. As explained previously, this NRST is shared with the JTAG port and the push button BP1. The LCD chip select signal is connected to NCS2 (a dedicated jumper can disable it, making NCS2 available for other custom usage).

The SAM3U4E communicates with the LCD through PIOB where a 16-bit parallel “8080-like” protocol data bus has to be implemented by software.

Table 4-1. LCD Module Pin Out

Pin Symbol Function

1 GND Ground

2 CS Chip Select

3 RS Register select signal

4 WR Write operation signal

5 RD Read operation signal

6~21 DB0~DB15 Data bus

22~23 NC No connection

24 RESET Reset signal

25 GND Ground

26 X+ Touch panel X_RIGHT

27 Y+ Touch panel Y_UP

28 X- Touch panel X_LEFT

29 Y- Touch panel Y_DOWN

30 GND Ground

31 VDD1 Power supply for digital IO Pad

32 VDD2 Power supply for analog circuit

33~36 A1~A4 Power supply for backlight

37~38 NC No connection

39 K Backlight ground




Figure 4-11. LCD Block

LCD backlight is made of 4 white chip LEDs in parallel, driven by an AAT3194 charge pump, MN4. The AAT3194 is controlled by the SAM3U4E through a single line Simple Serial Control (S2Cwire) interface, which permits to enable, disable, and set the LED drive current (LED brightness control) from a 32-level logarithmic scale. Four 0-Ohm resistors R93/R94/R95/R96 are implemented for optional current limita-tion (replace 0 Ohm with the required resistor value).

The LCD module integrates a 4-wire touch screen panel controlled by MN5, ADS7843, which is a slave device on the SAM3U4E SPI bus.

The ADS7843 touch ADC auxiliary inputs IN3/IN4 are connected to test points for optional function extension.

P B 10

P B 28

P B 31P B 6

X_LE F T

P B 13

P B 19

P B 15

Y _DOW N

P B 26

P B 11

P B 23

P B 16

P B 29P B 30

P B 9

P B 8

P B 14

C S #

P B 27

P B 25

X_R IG HTY _UP

P B 12

P C 16

LE D_A2

P C 19

LE D_A1

LE D_A4LE D_A3

LE D_A1

LE D_A2

LE D_A3

LE D_A4

LE D_A1LE D_A2LE D_A3LE D_A4

X_R IG HT

X_LE F TY _UP

Y _DOW N

DG ND

DG ND

+3V3

DG ND

VLE D

+3V3

DG ND

+3V3

DG ND

P B [31:0]

NR S T

NOT POPUL ATED

C 341uFC 341uF




R 94 0RR 94 0R

B 7B N03K 314S 300RB 7B N03K 314S 300R

D5P AC DN044Y 5RT VS , S OT 23-5

D5P AC DN044Y 5RT VS , S OT 23-5

1

2

345

MN4AAT 3194IT PMN4AAT 3194IT P

C 1+4

C 1-3

E N/S E T9

C 2+ 1

C 2- 12

OUT 2

IN10

G ND11

D1 8

D2 7

D3 6

D4 5R 95 0RR 95 0R

R 1947KR 1947K

R 200RR 200R

C 351uFC 351uF

C 39100nFC 39100nF

J 2F H26-39S -0.3S HWJ 2F H26-39S -0.3S HW

G ND11

C S2

R S3

W R4

R D5

DB 06

DB 17

DB 28

DB 39

DB 410

DB 511

DB 612

DB 713

DB 814

DB 915

DB 1016

DB 1117

DB 1218

DB 1319

DB 1420

DB 1521

NC 122

NC 223

R E S E T24

G ND225

X+26

Y +27

X-28

Y -29

G ND330

VDD131

VDD232

A133

A234

A335

A436

NC 337

NC 438

K39

shelled140

shelled241

J P 14J PJ P 14J P

R 93 0RR 93 0R

R 96 0RR 96 0R


� C 3810uF

� C 3810uF

C 371uFC 371uF

C 364.7uFC 364.7uF




Figure 4-12. Touch Screen Controller

4.3.10 JTAG

A standard 20-pin JTAG connector is implemented on the SAM3U-EK for any ARM JTAG emulator con-nection, such as SAM-ICE.

Note that the NRST net is connected to the system button BP1, and is also used to reset the LCD mod-ule. 0-Ohm resistor R75 may be removed in order to isolate the JTAG port from the system reset signal.

Figure 4-13. JTAG Connector

4.3.11 Audio Codec

The SAM3U-EK includes a WOLFSON codec WM8731 for digital sound input and output. This interface includes audio jacks for:

microphone input,

line audio input, and

headphone output.

X_R IG HT

X_R IG HT

Y _UPX_LE F TY _DOW N

P A13P A14P A15

P A2P A24

P C 14

P C 14

DG ND

+3V3

+3V3 +3V3

AG ND1

P A[31:0]

P C [31:0]

S PCKMOS IMI S ONPCS 2

BUY_TS CI RQ_TS C

C 434.7uFC 434.7uF

C 40100nFC 40100nFR 28

100KR 28100K

T P 2S MDT P 2S MD

T P 1S MDT P 1S MD

R 27 0RR 27 0R

R 26 0RR 26 0R

C 41100nFC 41100nF

R 25 0RR 25 0R

R 29100KR 29100K

R 24 0RR 24 0R

R 22100KR 22100K

R 300RR 300R

C 42100nFC 42100nF

R 21100KR 21100KMN5

ADS 7843EMN5ADS 7843E

XP2

Y P3

XM4

Y M5

DC LK 16

DIN 14

DOUT 12

C S 15

B US Y 13

P E NIR Q 11

VR E F 9

VC C 1 1

VC C 2 10

G ND 6

IN37

IN48L110uH/100mAL110uH/100mAR 91

1RR 911R

X_LE F TY _DOW N

Y _UP

J 2F H26-39S -0.3S HWJ 2F H26-39S -0.3S HW

X+26

Y +27

X-28

Y -29

DG ND

DG ND

+3V3

NR S T

T DI

T C K

T DO

T MS

R 72100KR 72100K

R 73100KR 73100K J 10

IDC 20-2.54mmJ 10IDC 20-2.54mm

VT ref1 Vsupply 2

nT R S T3 G ND1 4

T DI5 G ND2 6

T MS7 G ND3 8

T C K9 G ND4 10

R T C K11 G ND5 12

T DO13 G ND6 14

nS R S T15 G ND7 16

DB G R Q17 G ND8 18

DB G AC K19 G ND9 20

� C 9110uF

� C 9110uF

C 90100nFC 90100nF

R 71100KR 71100K

R 75 0RR 75 0R

R 74100KR 74100K

R 70100KR 70100K




The SAM3U4E programmable clock output is used to generate the WM8731 master clock (MCLK). The SAM3U4E ODT (On-Die Termination) feature guarantees a signal integrity on this clock line without the need for external discrete components.

WM8731 pin 21 MODE is pulled down by default; this configures the device as a TWI device for internal register access.

Pin15 CSB is pulled up, which sets its TWI address as 33 [0x0011011].

The WM8731 digital interface works in slave mode on the SAM3U4E Synchronous Serial Controller (SSC) interface, which means that Codec digital audio bit clock and ADC/DAC left/right control clock are to be generated by the SAM3U4E.

Figure 4-14. Codec Slave Mode

The WM8731 ADC and DAC have separated left/right control clocks to run at different rates.

The bit clock is shared; it can be the SSC transmitter clock (TK) or the receiver clock (RK). The default setting on SAM3U-EK is TK and RK shorted together through R97/R99. Please note that trying different ADC/DAC rates would mean different RK/TK rates; this default setting can be modified.

The 0-Ohm resistors R46/R47/R97/R99 have been implemented to offer a disconnection possibility (freeing these dedicated PIO lines for other custom usage).

BCLKADCLRCDACLRCADCDATDACDAT

WM8731CODEC

SAM3U4E

Note: The ADC and DAC can run at different rates

BCLKPA31PA30PA27PA26




Figure 4-15. Codec Block

4.3.12 USB

The SAM3U4E UDPHS port is compliant with the Universal Serial Bus (USB) rev 2.0 High Speed device specification. J9 is a B-type receptacle for USB device.

Both R2 and R3 39-Ohm resistors build up a 90-Ohm differential impedance together with the 5-Ohm output impedance of the Hi-speed channel drivers.

R68 and R69 build up a divider bridge from VBUS +5V to implement plug-in detection (5V level gets low-ered to a PIO compatible 3.3V level) through PA0. Note that PA0 is also shared with ZigBee signal IRQ0.

Figure 4-16. USB Slave Block

P A30

P A10P A9

P A21P A26P A27P A28P A29P A30

P A27P A31

P A10P A9

P A26

P A21

P A31

B C LK

B C LK

DG ND

+3V3

DG ND

+3V3 +3V3 +3V3

AVDD

AVDD+3V3

DG ND

AG ND

AG ND

AG ND

AG ND

AG ND

AG ND

AG NDF G ND

F G ND

F G ND

A[31:0]

TWD0TWCK0

PCK0

TDTF

HE ADPHONEL I NE - OUT

L I NE - I N

MONO/ S TE RE OMI CRO I NPUT

RDRF

�C 60 220uF�C 60 220uF

C 66 1uFC 66 1uF

R 3647KR 3647K

C 71470pFC 71470pF

R 435.6KR 435.6K

� C 5410uF

� C 5410uF

� C 6110uF

� C 6110uF

C 64470pFC 64470pF

� C 7610uF

� C 7610uF

C 62100nFC 62100nF

� C 5910uF

� C 5910uF

B 4B N03K 314S 600R

B 4B N03K 314S 600R

R 99 0RR 99 0R

R 38100KR 38100K

R 49 10KR 49 10K

R 42 5.6KR 42 5.6K

C 57100nFC 57100nF

R 510RR 510R

R 550RR 550R

C 68220pFC 68220pF

R 404.7KR 404.7K

C 73220pFC 73220pF

R 3747KR 3747K

MN8XW M8731E DSMN8XW M8731E DS

DB VDD1

C LK OUT2

B C LK3

DAC DAT4

DAC LR C5

ADC DAT6

ADC LR C7

HP VDD 8

LHP OUT 9

R HP OUT 10

HP G ND 11

LOUT12

R OUT13

AVDD 14

AG ND 15

VMID16

MIC B IAS 17

MIC IN 18

R LINE IN 19

LLINE IN 20

MODE21

C S B22

S DIN23

S C LK24

XT I/MC LK25

XT O26

DC VDD27

DG ND28

R 445.6KR 445.6K

R 46 0RR 46 0R

R 50 330RR 50 330R

C 75DNPC 75DNP

J 7E AR J AC KJ 7E AR J AC K1

2345

R 394.7KR 394.7K R 41 5.6KR 41 5.6K

C 65470pFC 65470pF

C 55100nFC 55100nF

C 70470pFC 70470pF

R 47 0RR 47 0R

�C 63 220uF�C 63 220uF


2345

B 2B N03K 314S 600RB 2B N03K 314S 600R

B 3B N03K 314S 600RB 3B N03K 314S 600R

R 540RR 540R

B 5B N03K 314S 600RB 5B N03K 314S 600R

R 48 680RR 48 680R

C 77100nFC 77100nF

R 530RR 530R

C 67 1uFC 67 1uF

C 72 1uFC 72 1uF

C 69220pFC 69220pF

L210uH/100mAL210uH/100mA

C 74470pFC 74470pF

R 5247KR 5247K

C 56100nFC 56100nF

� C 7847uF

� C 7847uF


2345

R 97 0RR 97 0R

B 1B N03K 314S 600RB 1B N03K 314S 600R

C 58100nFC 58100nF

P A0

DG NDDG NDDG ND

DG ND

DHS DMDHS DP

P A[31:0]

VBUS _US B

NOT POPUL ATED

R 6968KR 6968K

C 89100nFC 89100nF

J 9US B T Y P E B P OR TJ 9US B T Y P E B P OR T

VB US1

D-2D+3

G ND4

E _G ND05E _G ND16

B 6B N03K 314S 300RB 6B N03K 314S 300R

MN11T P D3E 001DR LRMN11T P D3E 001DR LR

IO11

IO22

G ND3 IO3 4

VC C 5

C 8810pFC 8810pF

R 68 47KR 68 47K




4.3.13 ADC Input

There are 8 multiplexed analog channel inputs on the 12-bit ADC, and 8 multiplexed analog channel inputs on the 10-bit ADC. SAM3U-EK optionally connects the two ADC channels to BNC header (check for your actual components implementation, schematics and BOM, on http://www.atmel.com/products/). One is 12-bit ADC channel 3, shared with PIO pin PB4. The other one is 10-bit ADC channel 0, shared with PIO PB5.

A potentiometer is also connected to these two channels to implement an easy access to ADC program-ming and debugging (or implement an analog user control such as display brightness, volume, etc.). Please note that SAM3U-EK default setting connects both AD12BAD3 and AD0 to the potentiometer so that AD12BAD3 and AD0 are actually shorted. If these two ports need to work separately, R82 and/or R84 should be removed.

There is another ADC application capability on SAM3U-EK (See “G-Sensor” on page 4-15.)

Figure 4-17. ADC Input

4.3.14 User Buttons

2 user buttons on the SAM3U-EK are connected to PIO lines, and are defined as left and right buttons by default.

ADC

P B 5

ADC

P B 4

DG ND

DG ND

DG ND

+3V3

AD12BAD3

AD0

Potent i omet er

C N2B NCC N2B NC

1234

5

R 820RR 820R

C N1B NCC N1B NC

1234

5

R 81DNPR 81DNP

VR 110KVR 110K

13

24

5

R 8849.9RR 8849.9R

C 9710nFC 9710nF

R 840RR 840R

C 9910nFC 9910nF

J P 18J PJ P 18J P

R 8349.9RR 8349.9R

C 9810nFC 9810nF

J P 19J PJ P 19J P

R 86DNPR 86DNP




Figure 4-18. User Buttons

4.3.15 G-Sensor

The SAM3U-EK board is equipped with a three axis accelerometer MMA7341. Basically, it is an acceler-ation to analog voltage converter. Converted data on corresponding directions are read by 3 SAM3U4E12-bit ADC channels.

PC13 controls the device sleep mode. A low level on PC13 will place the MMA7341 into sleep mode to reduce the current; conversely, a high PC13 level will wake it up from sleep mode.

Jumper JP15 controls the device g-select function, which allows the selection between two sensitivity levels. Depending on the logic input placed on pin 10, the device internal gain will be changed, operating within a 3g or 11g range with different sensitivities.

Jumper JP16 provides control of the device self-test function. When the self-test function is initiated, an electrostatic force is applied to each axis to cause it to deflect. The x- and y-axis are deflected slightly while the z-axis is trimmed to deflect 1g. This procedure assures that both mechanical (g-cell) and elec-tronic sections of the accelerometer are functioning.

Note that the 0-Ohm resistors R61/R62/R63 have been implemented to offer a disconnection possibility (freeing these dedicated PIO lines for other custom usage).

P A19

P A18

DG ND

BP_RI GHT#

BP_L E F T#

R 67100RR 67100R

B P 4B P 41

423

B P 5B P 51

423

C 86 10nFC 86 10nF

C 87 10nFC 87 10nF

R 66100RR 66100R

Table 4-2. Direction

Direction PIO usage ADC channel

XOUT PB3 AD2

YOUT PC17 AD6

ZOUT PC18 AD7

Table 4-3. g-Select

g-select g-range Sensitivity

0 3g 440mV/g

1 11g 117.5mV/g




Figure 4-19. G-Sensor

4.3.16 Temperature Sensor

A temperature sensor MCP9800 is connected to the SAM3U4E TWI bus. This device also features an open-drain output ALERT pin. The device outputs an alert signal when the ambient temperature goes beyond the user-programmed temperature limit.

Note that the 0-Ohm resistors R15 and R16 have been implemented to offer a disconnection possibility (freeing these dedicated PIO lines for other custom usage).

Figure 4-20. Temperature Sensor

4.3.17 SD Card

The SAM3U-EK has an MMC/MMCPlus high-speed 8-bit multimedia interface. This interface is used as a 4/8-bit interface, connected to an 8-bit SD/MMC card slot with card detection.

P C 13

P B 3P C 17P C 18

+3V3

DG ND

+3V3

DG ND

+3V3

DG ND DG ND DG ND

P C [31:0]

P B [31:0]

3AXS _S L E E P#

ADC0_AD2ADC0_AD6ADC0_AD7

J P 15 J PJ P 15 J P

R 63 0RR 63 0R

C 823.3nFC 823.3nF

R 62 0RR 62 0R

C 843.3nFC 843.3nF

MN9MMA7341LMN9MMA7341L

g-S elect10

S elf T est13

S leep7

XOUT2

Y OUT3

ZOUT4NC 2 8

NC 3 9

NC 4 11

NC 5 12

VDD 6

VS S 5

NC 11

NC 614

R 6010KR 6010K

R 61 0RR 61 0R

C 81100nFC 81100nF

R 5910KR 5910K

C 833.3nFC 833.3nF

J P 16 J PJ P 16 J P

P A10

P A18P A19

P A9

P A17

DG ND

+3V3

+3V3

P A[31:0]

TWD0

TWCK0

TE MP_AL ARMR 160RR 160R

R 6447KR 6447K

MN10MC P 9800MN10MC P 9800

VDD 1

G ND 2

ALE R T 3S C LK4

S DA5

R 150RR 150R

C 85100nFC 85100nF




Figure 4-21. SD Card Socket

4.3.18 ZigBee

SAM3U4E has a 10-pin male connector for the RZ600 ZigBee module.

Figure 4-22. ZigBee

P C 31P A25

P A6

P A3

P A7

P A4

P C 30

P C 28

P A5

P A8

P C 29

DG ND

DG ND

+3V3DG ND

+3V3

P A[31:0]

P C [31:0]

CK

CDA

DA2

DA3

DA0DA1

WKUP12

DA4

DA5

DA6

DA7

R A147K X4R A147K X4

12345 6 7 8

C 80100nFC 80100nF

J 87S DMM-B 0B 2211J 87S DMM-B 0B 2211

DAT 21

R S V/DAT 32

DAT 43

C MD4

DAT 55

G ND6

VC C7

C LK8

DAT 69

C D10

DAT 711

DAT 012

DAT 113

S D_W P14

G R OUND1 15

G R OUND 16

S HE LLE D1 17

S HE LLE D2 18

R A247K X4R A247K X4

12345 6 7 8

R 5710KR 5710K

R 5610KR 5610K

� C 7910uF

� C 7910uF

R 5810KR 5810K

Table 4-4. Pin Card Detection Scheme

Status Detection

WITHOUT CARDSD_WP: OPEN CD: OPEN

SD Card inserted with write protection lockSD_WP: OPEN CD: GND

SD Card inserted with write protection unlock, or other card insertedSD_WP: GND CD: GND

P A13P A16

P A15

P A1P C 27

P A14P C 26P A0

DG ND

+3V3

I RQ0_ZBE EI RQ1_ZBE ES PI O_NPCS 0#MI S O

MOS IS PCK

SL P_TRZB_RS TN R 100 0RR 100 0R

C 10018pFC 10018pF

C 1022.2uFC 1022.2uF

J 16J 161 23 45 67 89 10

J P 21J PJ P 21J P

C 1012.2nFC 1012.2nF




4.3.19 PIO Expansion

Figure 4-23. PIO Expansion Ports

The SAM3U4E product features 3 PIO controllers, PIOA, PIOB and PIOC, which multiplex the I/O lines of the peripheral set. Each PIO controller controls up to 32 lines. Expansion ports J13, J14, J15 provide a way for customers to define any PIO channels.

All the expansion port pins are directly connected to the SAM3U4E chip, except PB4 and PB5, which are assigned as AD12BAD3 and AD0 by default on the board. Solder drops have been implemented on the board to avoid signal conflicts from traces routing to expansion ports. If PB4 and PB5 need to be con-nected to the J14 connector, solder drops SD3 and SD4 should be shorted.

Figure 4-24. SD3 Location

Figure 4-25. SD4 Location

P B 6

P B 1

P B 3

P B 7

P B 13

P B 11

P B 14

P B 9

B B 4

P B 0

P B 8

B B 5

P B 15

P B 10

P B 2

P B 12

P B 22

P B 17

P B 19

P B 23

P B 29

P B 27

P B 30

P B 25

P B 20

P B 16

P B 24

P B 21

P B 31

P B 26

P B 18

P B 28P C 29

P C 25

P C 12

P C 9

P C 31P C 14

P C 8P C 23

P C 3

P C 0

P C 11

P C 21

P C 30

P C 19P C 2

P C 7

P C 16

P C 24

P C 22P C 5

P C 17P C 1

P C 27

P C 6

P C 20

P C 28

P C 15

P C 13

P C 10 P C 26

P C 4

P C 18

P B 4P B 5

B B 4B B 5

P A21

P A9

P A27

P A23

P A28

P A5P A22

P A17

P A11

P A24

P A29

P A1

P A14

P A8

P A18

P A12P A13

P A2

P A7P A6

P A30

P A0

P A10

P A16

P A26

P A3

P A25

P A31

P A20P A4

P A15

P A19

DG ND DG ND DG ND DG ND DG ND DG ND

+3V3 +3V3+3V3 +3V3 +3V3+3V3

+5V +5V +5V +5V +5V +5V

P C [31:0]

P B [31:0]S OL DE R DROP 2 pi ns open. Nor ma l

S OL DE R DROP 2 pi ns open. Nor ma l

J 15048J 15048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

J 14048J 14048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

S D4S D4

J 13048J 13048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

S D3S D3




4.4 Configuration

This section describes the PIO usage, the jumpers, the test points and the solder drops of a SAM3U-EK board.

4.4.1 PIO Usage

Table 4-5. PIO Port A Assignment

I/O Line Peripheral A Peripheral B Extra Function EK Usage Device

PA0 TIOB0 NPCS1 WKUP0IRQ0_ZBEE/ VBUS_USB

ZigBee, USB

PA1 TIOA0 NPCS2 WKUP1 IRQ0_ZBEE ZigBee

PA2 TCLK0 AD12BTRG WKUP2 BUSY_TSC Touch Screen

PA3 MCCK PCK1 MCCK SD/MMC

PA4 MCCDA PWMH0 MCCDA SD/MMC

PA5 MCDA0 PWMH1 MCDA0 SD/MMC

PA6 MCDA1 PWMH2 MCDA1 SD/MMC

PA7 MCDA2 PWML0 MCDA2 SD/MMC

PA8 MCDA3 PWML1 MCDA3 SD/MMC

PA9 TWD0 PWML2 WKUP3 TWD0 Codec, Temp sensor

PA10 TWCK0 PWML3 WKUP4 TWCK0 Codec, Temp sensor

PA11 URXD PWMFI0 URXD UART

PA12 UTXD PWMFI1 URXD UART

PA13 MISO MISO Touch panel, ZigBee

PA14 MOSI MOSI Touch panel, ZigBee

PA15 SPCK PWMH2 SPCK Touch panel, ZigBee

PA16 NPCS0 NCS1 WKUP5 SPIO_NPCS0# ZigBee

PA17 SCK0 ADTRG WKUP6 TEMP_ALARM Temp sensor

PA18 TXD0 PWMFI2 WKUP7 BP_LEFT# User Button

PA19 RXD0 NPCS3 WKUP8 BP_RIGHT# User Button

PA20 TXD1 PWMH3 WKUP9 TXD1 USART

PA21 RXD1 PCK0 WKUP10 RXD1 USART

PA22 TXD2 RTS1 AD12B0 RTS1 USART

PA23 RXD2 CTS1 CTS1 USART

PA24 TWD1 SCK1 WKUP11 IRQ_TSC Touch Screen

PA25 TWCK1 SCK2 WKUP12 MCI_CD SD/MMC

PA26 TD TCLK2 TD Audio codec

PA27 RD PCK0 RD Audio codec

PA28 TK PWMH0 TK Audio codec




PA29 RK PWMH1 RK Audio codec

PA30 TF TIOA2 AD12B1 TF Audio codec

PA31 RF TIOB2 RF Audio codec

Table 4-5. PIO Port A Assignment


Table 4-6. PIO Port B Assignment


PB0 PWMH0 A2 WKUP13 USR_LED1# USER_LED

PB1 PWMH1 A3 WKUP14 USR_LED2# USER_LED

PB2 PWMH2 A4 WKUP15 POWER_LED POWER_LED

PB3 PWMH3 A5 AD12BAD2 3AXS_XOUT Accelerometer

PB4 TCLK1 A6 AD12BAD3 BNC1 Analog input

PB5 TIOA1 A7 AD0 BNC2 Analog input

PB6 TIOB1 D15 AD1 D15 PSRAM, NAND Flash, LCD

PB7 RTS0 A0/NBS0 AD2 NBS0 PSRAM,

PB8 CTS0 A1 AD3 A1/RS PSRAM, LCD

PB9 D0 DTR0 D0 PSRAM, NAND Flash, LCD

PB10 D1 DSR0 D1 PSRAM, NAND Flash, LCD

PB11 D2 DCD0 D2 PSRAM, NAND Flash, LCD

PB12 D3 RI0 D3 PSRAM, NAND Flash, LCD

PB13 D4 PWMH0 D4 PSRAM, NAND Flash, LCD




PB17 NANDOE PWML0 NANDOE NAND Flash

PB18 NANDWE PWML1 NANDWE NAND Flash

PB19 NRD PWML2 NRD PSRAM, LCD

PB20 NCS0 PWML3 NCS0 PSRAM

PB21 A21/NANDALE RTS2 NANDALE NAND Flash

PB22 A22/NANDCLE CTS2 NANDCLE NAND Flash

PB23 NWR0/NEW PCK2 NWE PSRAM, LCD

PB24 NANDRDY PCK1 NANDRDY NAND Flash

PB25 D8 PWML0 D8 PSRAM, NAND Flash, LCD







PB29 D12 D12 PSRAM, NAND Flash, LCD



Table 4-6. PIO Port B Assignment


Table 4-7. PIO Port C Assignment


PC0 A2 A2 PSRAM

PC1 A3 A3 PSRAM

PC2 A4 A4 PSRAM

PC3 A5 NPCS1 A5 PSRAM



PC6 A8 PWML0 A8 PSRAM




PC10 A12 CTS3 A12 PSRAM

PC11 A13 RTS3 A13 PSRAM

PC12 NCS1 TXD3 NCS1 NAND Flash

PC13 A2 RSD3 3AXS_SLEEP# Accelerometer

PC14 A3 NPCS2 NPCS2 Touch Screen

PC15 NWR1/NBS1 AD12BAD4 NBS1 NAND Flash

PC16 NCS2 PWML3 AD12BAD5 NCS2 LCD

PC17 NCS3 AD12BAD6 3AXS_YOUT Accelerometer

PC18 NWAIT AD12BAD7 3AXS_ZOUT Accelerometer

PC19 SCK3 NPCS1 BL_EN Back Light

PC20 A14 A14 PSRAM

PC21 A15 A15 PSRAM

PC22 A16 A16 PSRAM

PC23 A17 A17 PSRAM

PC24 A18 A18 PSRAM

PC25 A19 PWMH1 A19 PSRAM

PC26 A20 PWMH2 SLP_TR ZigBee

PC27 A23 PWMH3 ZB_RSTN ZigBee

PC28 MCDA4 AD4 MCDA4 SD/MMC




4.4.2 Jumpers

The SAM3U-EK board jumpers are used for many purposes such as internal Flash Memory reinitializa-tion, power current measurement and other configurations.

PC29 PWML0 MCDA5 AD5 MCDA5 SD/MMC



Table 4-7. PIO Port C Assignment


Table 4-8. Jumpers Setting

Designation Label Default Setting Feature

JP1 ERASE Open

Close it to reinitialize the Flash content and some of its NVM bits.

This jumper must be closed for more than 220 ms at power-up to perform the re-initialization.

JP2 (DNP) TEST Not populated (open) reserved

JP3 VIN Close Measure current feed into VDDIN pin

JP5 AD12BVREFPin1 Pin2 close, Switch to +3V3

Select the reference voltage of the 12-bit ADC to be either 3.3V (close 1-2) or 2.5V (close 2-3)

JP6 VIO Close Measure current feed into VDDIO pins

JP7 VUTMI Close Measure current feed into VDDUTMI pin

JP8 VANA Close Measure current feed into VDDANA pin

JP9 VCORE Close Measure current feed into VDDCORE pins

JP10 VPLL Close Measure current feed into VDDPLL pin

JP11 VOUT Close Measure current out of VDDOUT pin

JP12 NCS0 Close Disconnection possibility on NCS0



JP15 3AXS CloseG-select feature, sensitivity level switch. Close as 440mv/g, open as 117.5mV/g

JP16 3AXS CloseOpen to cause a slight deflect on each axis output, which is device self test

JP17 FORCE POWER ON Close Force +3V3 LDO output valid

JP18 (DNP) - Not populated (open)Close to enable 50-Ohm terminal resistor for AD12BAD3 BNC port

JP19 (DNP) - Not populated (open)Close to enable 50-Ohm terminal resistor for AD0 BNC port

JP20 ADVREFPin1 Pin2 close, Switch to +3V3

Select the reference voltage of the 10-bit ADC to be either 3.3V (close 1-2) or 2.5V (close 2-3)

JP21 - Open Measure current feed into ZigBee module




4.4.3 Test Points

Some test points have been placed on the SAM3U-EK board for the verification of important signals.

4.4.4 Solder Drops

Two solder drops have been designed on the SAM3U-EK for isolation puposes.

4.4.5 Assigned PIO Lines, Disconnection Possibility

As pointed out in previous interface descriptions, 0-Ohm resistors have been inserted on the PIO lines receiver path of the SAM3U-EK. Some PIO lines are connected to an external driver on the board. The 0-Ohm resistors allow disconnecting each of these for custom usage (through PIO expansion connec-

Table 4-9. Test Points

Designation Part Description

TP1 Pad Aux ADC input IN3 for touch screen control

TP2 Pad Aux ADC input IN4 for touch screen control

TP3 Ring Hook +3V3

TP4 Ring Hook +5V

TP5 Ring Hook GND

TP6 Ring Hook GND

TP7 Ring Hook GND

TP8 Ring Hook GND

TP9 Pad FWUP

TP10 Pad SHDN

TP11 Pad ADVREF

TP12 Pad AD12BVREF

TP13 Pad LED_A1

TP14 Pad LED_A2

TP15 Pad LED_A3

TP16 Pad LED_A4

TP17 Pad UTXD

TP18 Pad URXD

TP19 Pad TXD1

TP20 Pad RXD1

Table 4-10. Solder Drops

Designation Default Setting Feature

SD3 Open Isolation of AD12BAD3 input from PIO expansion socket

SD4 Open Isolation of AD0 input from PIO expansion socket




tors, for example). This feature gives the user an added level of versatility for prototyping a system of his own. See the table below.

Table 4-11. Disconnecting Possibility

Designation Default Assignment PIO

R14 NANDRDY PB24

R15 NANDOE PB17

R16 NANDWE PB18

R20 BL_EN PC19

R24 NPCS2 PC14

R25 BUY_TSC PA2

R26 IRQ_TSC PA24

R46 RD PA27

R47 RF PA31

R61 AD12BAD2 PB3

R62 AD12BAD6 PC17

R63 AD12BAD7 PC18

R97 TK PA28

R99 RK PA29

R100 IRQ0_ZBEE PA0

R103 URXD PA11

R104 RXD1 PA21

R105 CTS1 PA23



Section 5

Schematics

5.1 SchematicsThis section contains the following schematics:

Block Diagram

Design Notes

SAM3U PIO

SAM3U CPU

EBI Memory 1MB PSRAM

EBI Memory II 2GB NAND Flash

TFT LCD and TSC

UART and COM1 RS232

Audio DAC

SD/MMC Interface

Accelerometer, Temp, Buttons

USB and JTAG

Power Supply, ADC and LED

SAM3U Socket

User Interface and ZigBee



5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

Power Manage

USB & UART

ATMEL Cortex M3 Processor SAM3U (LQFP144)

SAM3U-EK RevB Block Diagram

Temperature sense

2.8 Inch TFT-LCD

User Interface (PIO PortA,B,C)

PSRAM

SD/MMC Card

Nand Flash

Accelerometer

Audio DAC

Reset,Debug Logic

REV DATEMODIF. DES. DATE VER.

SCALE 1/1 REV. SHEET

This agreement is our property. Reproduction and publication without our written authorization shall expose offender to legal proceedings.

INIT EDITA

115B

XX-XXX-XXZXL XXX

Block Diagram

03-FEB-09

SAM3U-EK RevB

B 19-MAY-09ZXL PP 20-JAN-10




INIT EDITA

115B

XX-XXX-XXZXL XXX

Block Diagram

03-FEB-09

SAM3U-EK RevB





INIT EDITA

115B

XX-XXX-XXZXL XXX

Block Diagram

03-FEB-09

SAM3U-EK RevB


5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

1. SAM3U-EK Revision HISTORY

Rev: A

SCH: SAM3U-EK RevA Data: 2008/12

Note: Original Released

2. Explain of Schematics

(1) Resistance Unit: "K" is"K¦¸" "R" is "¦¸"(2) "DNP" means the component is not populated by default

Rev: B

SCH: SAM3U-EK RevB Data: 2009/04

Note: Final Released




INIT EDITA

215B

XX-XXX-XXZXL XXX

Design notes

03-FEB-09

SAM3U-EK RevB





INIT EDITA

215B

XX-XXX-XXZXL XXX

Design notes

03-FEB-09

SAM3U-EK RevB





INIT EDITA

215B

XX-XXX-XXZXL XXX

Design notes

03-FEB-09

SAM3U-EK RevB


5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

PB0PB1

PB3PB2

PB7

PB5PB4

PB6

PB11

PB9PB8

PB15PB14PB13PB12

PB10

PB19

PB17PB16

PB29

PB24PB23PB22PB21

PB31

PB20

PB27PB28

PB25

PB18

PB26

PB30

PC19

PC23

PC17PC16

PC20PC21

PC18

PC22

PC27

PC31

PC26

PC30

PC24PC25

PC29PC28

PA21

PC12

PA27

PC11

PA31

PA25

PA1PA0

PC3

PA23

PA13

PC7

PA24

PA17

PA8PA7

PC14

PA6PA5

PC13

PA15

PA22

PA28

PA20

PA29

PA4

PC15

PA11

PA18

PA26

PC2

PC6

PA30

PA12

PC0

PA9

PC9

PC1

PC5

PA19

PA2

PC4

PA10

PA16

PC10

PA14

PC8

PA3

PA[31:0]{7,8,9,10,11,12,14,15}

PC[31:0]{5,6,7,10,11,14,15}

PB[31:0] {5,6,7,11,13,14,15}

PC[31:0] {5,6,7,10,11,14,15}




INIT EDITA

315B

XX-XXX-XXZXL XXX

SAM3U PIO

03-FEB-09

SAM3U-EK RevB

B 07-jul-11ZXL PP 20-JAN-10




INIT EDITA

315B

XX-XXX-XXZXL XXX

SAM3U PIO

03-FEB-09

SAM3U-EK RevB





INIT EDITA

315B

XX-XXX-XXZXL XXX

SAM3U PIO

03-FEB-09

SAM3U-EK RevB


MN1ASAM3UMN1ASAM3U

PA0/WKUP0109

PA1/WKUP1111

PA2/WKUP2113

PA3/CK115

PA4/CDA117

PA5/DA0119

PA6/DA1121

PA7/DA2123

PA8/DA3128

PA9/TWD0130

PA10/TWCK0132

PA11/URXD133

PA12/UTXD134

PA13/MISO87

PA14/MOSI88

PA15/SPCK91

PA16/NPCS093

PA17/WKUP795

PA18/WKUP899

PA19/WKUP9100

PA20/TXD1101

PA21/RXD1102

PA22/RTS177

PA23/CTS2103

PA24/WKUP11105

PA25/WKUP12106

PA26/TD107

PA27/PCK064

PA28/TK45

PA29/PWMH146

PA30/TF78

PA31/RF48

PB0/PWMH053

PB1/PWMH155

PB2/PWMH257

PB3/AD12BAD279

PB4/AD12BAD380

PB5/AD065

PB6/D1566

PB7/A0/NBS067

PB8/A168

PB9/D031

PB10/D130

PB11/D259

PB12/D361

PB13/D462

PB14/D529

PB15/D697

PB16/D796

PB17/NANDOE26

PB18/NANDWE25

PB19/NRD24

PB20/NCS023

PB21/A21/NANDALE21

PB22/A22/NANDCLE20

PB23/NWR0/NWE19

PB24/NANDRDY15

PB25/D814

PB26/D913

PB27/D1012

PB28/D1110

PB29/D128

PB30/D136

PB31/D145

PC0/A2110

PC1/A3112

PC2/A4114

PC3/A5116

PC4/A6118

PC5/A7120

PC6/A8122

PC7/A9124

PC8/A10129

PC9/A11131

PC10/A1289

PC11/A1392

PC12/NCS194

PC13/RXD398

PC14/NPCS228

PC15/NWR1/NBS181

PC16/NCS282

PC17/AD12BAD683

PC18/AD12BAD784

PC19/NPCS132

PC20/A14108

PC21/A1522

PC22/A1647

PC23/A1749

PC24/A1854

PC25/A1956

PC26/PWMH258

PC27/A2363

PC28/DA469

PC29/DA570

PC30/DA671

PC31/DA772

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

NOT POPULATED

XIN32XIN1

XOUT32XOUT1

XOUT1XIN1

VBG

XOUT32XIN32

DFSDMDFSDP

VBG

DFSDPDFSDM

DGND

+3V3

DGNDDGND

DGND

+3V3

DGND

VOUT

DGND

VCORE

DGND

VPLL

DGND

VIO

VUTMI

DGND VANA

DGND+3V3

DGND

VBU

DGND

VOUT

+3V3

VCORE

VPLL

VIO

VUTMI

VANA

DGND

VIN

DGND

DGND

VIO

+3V3

DGND

DGND

FWUP{11,14}

NRST{7,11,12,14}NRSTB{11,14}

TDI{12,14}

SHDN{13,14}

TDO{12,14}TMS{12,14}TCK{12,14}

DHSDM{12,14}DHSDP{12,14}

VBG{14}

ADVREF {13,14}AD12BVREF{13,14}

XIN{14}XOUT{14}

JTAGSEL{14}TEST{14}ERASE{14}

XIN32{14}XOUT32{14}

DFSDM {14}DFSDP {14}




INIT EDITA

415B

XX-XXX-XXZXL XXX

SAM3U CPU

03-FEB-09

SAM3U-EK RevB





INIT EDITA

415B

XX-XXX-XXZXL XXX

SAM3U CPU

03-FEB-09

SAM3U-EK RevB





INIT EDITA

415B

XX-XXX-XXZXL XXX

SAM3U CPU

03-FEB-09

SAM3U-EK RevB


D6BAT54CD6BAT54C

32

1

JP6JPJP6JP

C44.7uFC44.7uF

+ C1010uF

+ C1010uF

C174.7uFC174.7uF

CR1225

3V

BT1KY001

CR1225

3V

BT1KY001

+1

-2

33

44

C14100nFC14100nF

C105100nFC105100nF

JP2 DNPJP2 DNP MN1BSAM3UMN1BSAM3U

NRST11

TDI1

TDO/TRACESWO4

TMS/SWDIO7

TCK/SWCLK9

VBG39

DHSDP37

DHSDM38

DFSDM41

DFSDP42

FWUP135

SHDN136

ERASE137

TEST138

NRSTB141

XIN32144

XOUT32143

XIN36

XOUT35

ADVREF74

AD12BVREF76

VDDCORE116

VDDCORE227

VDDCORE344

VDDCORE450

VDDCORE586

VDDCORE6125

VDDOUT2

VDDIN3

VDDIO117

GND118

GNDPLL33

VDDUTMI40

GNDUTMI43

VDDIO251

GND252

GND360

VDDANA73

GNDANA75

VDDIO385

GND490

VDDIO4104

GND5126

VDDIO5127

VDDBU139

GNDBU140

VDDPLL34

JTAGSEL142

JP10JPJP10JP

+ C210uF

+ C210uF

R1011RR1011R

J1J11

2 354

JP7JPJP7JP

+ C2310uF

+ C2310uF

C16100nFC16100nF

R2 39RR2 39R

JP4JPJP4JP

R1021RR1021R

C1910pFC1910pF

R8 DNPR8 DNP

C13100nFC13100nF

C2420pFC2420pF

C5100nFC5100nF


R3 39RR3 39R

C2720pFC2720pF

C211uFC211uF

C11100nFC11100nF

C20100nFC20100nF

C2520pFC2520pF

C1100nFC1100nF

C1104.7uFC1104.7uF

C9100nFC9100nF

C18100nFC18100nF

R96.8K 1%R96.8K 1%

JP1 JPJP1 JP

C7100nFC7100nF

JP8JPJP8JP

JP3JPJP3JP


C15100nFC15100nF

R7 0RR7 0R

C1084.7uFC1084.7uF

Y232.768KHz

Y232.768KHz

12

3

C12100nFC12100nF

C109100nFC109100nF

R1 DNPR1 DNP

C6100nFC6100nF

Y112.000MHz

Y112.000MHz

C107100nFC107100nF

JP11JPJP11JP

C10610nFC10610nF

R6 0RR6 0R

C8100nFC8100nF

JP9JPJP9JP

C3100nFC3100nF

C2620pFC2620pF

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

D0D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15

A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15A16A17A18A19

NBS0NBS1

NCS0NRDNWE

PB9PB10PB11PB12

PB16

PB13

PB15PB14

PB28

PB25

PB27

PB6

PB29

PB26

PB30PB31

PC2

PC20

PC1

PC6

PC3

PC0

PC21

PC4

PC8

PC10

PC22

PC5

PC11

PC7

PC9

PC25PC24PC23

PB19PB23

PC15

PB8

PB7PB19PB20PB23

PB7

PB20

+3V3 +3V3

+3V3

DGND

PB[31:0]{3,6,7,11,13,14,15}

PC[31:0]{3,6,7,10,11,14,15}




INIT EDITA

515B

XX-XXX-XXZXL XXX

EBI Memory I 1MB PSRAM

03-FEB-09

SAM3U-EK RevB





INIT EDITA

515B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB





INIT EDITA

515B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB


R1147KR1147K

JP12JPJP12JP

C28100nFC28100nF

C291uFC291uF

R1047KR1047K

MN2PSRAM 512K x16MN2PSRAM 512K x16

A03

A14

A25

A39

A410

A515

A616

A722

A844

A945

A1046

A1147

A1239

A1340

A1433

A1534

A1628

A1721

A1843

DQ012

DQ117

DQ218

DQ323

DQ429

DQ535

DQ636

DQ742

DQ87

DQ913

DQ1014

DQ1120

DQ1226

DQ1332

DQ1431

DQ1537

LB#1

UB#8

CE#11

OE#2

WE#41

NC127

NC238

NC348

VCC24

VCCQ25

VSS30

VSSQ19

ZZ#6

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

D8

D7D6D5D4

D3D2

D15

D1

D14D13

D0

D12

D11

D10D9

NANDRDYNANDOE

NANDCLENANDALENANDWE

NCS1

PB21PB22

PB18

PB17PB24

PB6PB31PB30PB16PB15PB14PB13PB29

PB28PB12PB11PB10PB9PB27PB26PB25

PC12

+3V3 +3V3

+3V3

DGND

+3V3

DGND

+3V3

PB[31:0]{3,5,7,11,13,14,15}

PC[31:0]{3,5,7,10,11,14,15}




INIT EDITA

615B

XX-XXX-XXZXL XXX

EBI Memory II NAND FLASH

03-FEB-09

SAM3U-EK RevB





INIT EDITA

615B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB





INIT EDITA

615B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB


R14 0RR14 0R

R18DNPR18DNP

R1247KR1247K

C33100nFC33100nF

C32100nFC32100nF

R1347KR1347K

R17 47KR17 47K

MN3MT29F2G16AADWPMN3MT29F2G16AADWP

NC11

NC22

NC33

NC44

NC55

NC66

R/B#7

RE#8

CE#9

NC710

NC811

VCC112

VSS113

NC914

NC1015

CLE16

ALE17

WE#18

WP#19

NC1120

NC1221

NC1322

NC1423

NC1524

VSS225IO826IO927IO1028IO029IO130IO231IO332IO1133VCC234NC1635VSS336VCC337NC1738VCC439IO1240IO441IO542IO643IO744IO1345IO1446IO1547VSS448

C31100nFC31100nF

C30100nFC30100nF

JP13JPJP13JP

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

SPCKMOSIMISONPCS2

BUY_TSCIRQ_TSC

The part is placed as close as possible to J2

NOT POPULATED

X_RIGHTY_UPX_LEFTY_DOWN

PA13PA14PA15

PA2PA24

PC14

PB10

PB28

PB31PB6

X_LEFT

PB13

PB19

PB15

Y_DOWN

PB26

PB11

PB23

PB16

PB29PB30

PB9

PB8

PB14

CS#

PB27

PB25

X_RIGHTY_UP

PB12

PC16

PC14PC16

LED_A2

PC19

LED_A1

LED_A4LED_A3

LED_A1

LED_A2

LED_A3

LED_A4

LED_A1LED_A2LED_A3LED_A4

X_RIGHT

X_LEFTY_UP

Y_DOWN

PC19

DGND

+3V3

+3V3 +3V3

DGND

DGND

+3V3

DGND

VLED

+3V3

DGND

+3V3

DGND

AGND1

PA[31:0] {3,8,9,10,11,12,14,15}

PB[31:0]{3,5,6,11,13,14,15}

PC[31:0]{3,5,6,10,11,14,15}

NRST{4,11,12,14}




INIT EDITA

715B

XX-XXX-XXZXL XXX

TFT-LCD & TSC

03-FEB-09

SAM3U-EK RevB

B 19-MAY-09ZXL 20-JAN-10PP




INIT EDITA

715B

XX-XXX-XXZXL XXX

TFT-LCD & TSC

03-FEB-09

SAM3U-EK RevB





INIT EDITA

715B

XX-XXX-XXZXL XXX

TFT-LCD & TSC

03-FEB-09

SAM3U-EK RevB


C341uFC341uF

JP14JPJP14JP

C364.7uFC364.7uF

R24 0RR24 0R

B7BN03K314S300RB7BN03K314S300R

R911RR911R


R21100KR21100K

R26 0RR26 0R

D5PACDN044Y5RTVS, SOT23-5

D5PACDN044Y5RTVS, SOT23-5

1

2

345

C41100nFC41100nF

+ C3810uF

+ C3810uF

C434.7uFC434.7uF

R96 0RR96 0R

R93 0RR93 0R

R95 0RR95 0RR94 0RR94 0R

TP16SMDTP16SMD

TP2SMDTP2SMD

TP13SMDTP13SMD

R22100KR22100K

C351uFC351uF

C40100nFC40100nF

TP14SMDTP14SMD

MN5ADS7843EMN5ADS7843E

XP2

YP3

XM4

YM5

DCLK16

DIN14

DOUT12

CS15

BUSY13

PENIRQ11

VREF9

VCC11

VCC210

GND6

IN37

IN48

J2FH26-39S-0.3SHWJ2FH26-39S-0.3SHW

GND11

CS2

RS3

WR4

RD5

DB06

DB17

DB28

DB39

DB410

DB511

DB612

DB713

DB814

DB915

DB1016

DB1117

DB1218

DB1319

DB1420

DB1521

NC122

NC223

RESET24

GND225

X+26

Y+27

X-28

Y-29

GND330

VDD131

VDD232

A133

A234

A335

A436

NC337

NC438

K39

shelled140

shelled241

R200RR200R

C42100nFC42100nF

R300RR300R

R25 0RR25 0R

C39100nFC39100nF

R1947KR1947K

R29100KR29100K

TP1SMDTP1SMD

C371uFC371uF

MN4AAT3194ITPMN4AAT3194ITP

C1+4

C1-3

EN/SET9

C2+1

C2-12

OUT2

IN10

GND11

D18

D27

D36

D45

R27 0RR27 0R

R28100KR28100K

TP15SMDTP15SMD

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

UTXDURXD

TXD1RXD1RTS1CTS1

PA22PA21

PA12

PA20

PA11

PA23

+3V3

DGND

+3V3

DGND

DGNDDGND

+3V3 +3V3

+3V3 +3V3

PA[31:0]{3,7,9,10,11,12,14,15}




INIT EDITA

815B

XX-XXX-XXZXL XXX

UART & COM1 RS232

03-FEB-09

SAM3U-EK RevB





INIT EDITA

815B

XX-XXX-XXZXL XXX

UART & COM1 RS232

03-FEB-09

SAM3U-EK RevB





INIT EDITA

815B

XX-XXX-XXZXL XXX

UART & COM1 RS232

03-FEB-09

SAM3U-EK RevB


J3MALE RIGHT ANGLEDJ3MALE RIGHT ANGLED

5

4

3

2

1

9

8

7

6

10 11

R32100KR32100K

R31100KR31100K

C48100nFC48100nF

C44100nFC44100nF

C45100nFC45100nF

R103 0RR103 0R

C52100nFC52100nF

TP18SMDTP18SMD

MN7MAX3232CSEMN7MAX3232CSE

T1IN11

T2IN10 R1OUT12

R2OUT9

T1OUT14

T2OUT7R1IN13

R2IN8

V+2

C1+1

C1-3

C2+4

C2-5

V-6

VCC16

GND15

C50100nFC50100nF

TP19SMDTP19SMD

R34100KR34100K

C46100nFC46100nF

C47100nFC47100nF

R105 0RR105 0R

TP20SMDTP20SMD

C51100nFC51100nF

C53100nFC53100nF

R33 0RR33 0R

R35100KR35100K

J4MALE RIGHT ANGLEDJ4MALE RIGHT ANGLED

5

4

3

2

1

9

8

7

6

10 11

C49100nFC49100nF

R104 0RR104 0R

MN6MAX3232CSEMN6MAX3232CSE

T1IN11

T2IN10 R1OUT12

R2OUT9

T1OUT14

T2OUT7R1IN13

R2IN8

V+2

C1+1

C1-3

C2+4

C2-5

V-6

VCC16

GND15

TP17SMDTP17SMD

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

TWD0TWCK0

PCK0

TDTF

HEADPHONELINE-OUT

LINE-IN

MONO/STEREOMICRO INPUT

RDRF

PA30

PA10PA9

PA21PA26PA27PA28PA29PA30

PA27PA31

PA10PA9

PA26

PA21

PA31

BCLK

BCLK

DGND

+3V3

DGND

+3V3 +3V3 +3V3

AVDD

AVDD+3V3

DGND

AGND

AGND

AGND

AGND

AGND

AGND

AGNDFGND

FGND

FGND

PA[31:0]{3,7,8,10,11,12,14,15}




INIT EDITA

915B

XX-XXX-XXZXL XXX

Audio DAC

03-FEB-09

SAM3U-EK RevB





INIT EDITA

915B

XX-XXX-XXZXL XXX

Audio DAC

03-FEB-09

SAM3U-EK RevB





INIT EDITA

915B

XX-XXX-XXZXL XXX

Audio DAC

03-FEB-09

SAM3U-EK RevB


R97 0RR97 0R

R50 330RR50 330R

C68220pFC68220pF

R49 10KR49 10K

MN8XWM8731EDSMN8XWM8731EDS

DBVDD1

CLKOUT2

BCLK3

DACDAT4

DACLRC5

ADCDAT6

ADCLRC7

HPVDD8

LHPOUT9

RHPOUT10

HPGND11

LOUT12

ROUT13

AVDD14

AGND15

VMID16

MICBIAS17

MICIN18

RLINEIN19

LLINEIN20

MODE21

CSB22

SDIN23

SCLK24

XTI/MCLK25

XTO26

DCVDD27

DGND28

+ C7847uF

+ C7847uF

R530RR530R

C65470pFC65470pF

C73220pFC73220pF

R46 0RR46 0R

C56100nFC56100nF


C67 1uFC67 1uF

R47 0RR47 0R

R41 5.6KR41 5.6K

R445.6KR445.6K C70

470pFC70470pF

C57100nFC57100nF

C74470pFC74470pF

R3647KR3647K

C72 1uFC72 1uF


R404.7KR404.7K

R550RR550R

R42 5.6KR42 5.6KB4

BN03K314S600RB4

BN03K314S600RC71470pFC71470pF

C62100nFC62100nF


J6EARJACKJ6EARJACK1

2345

C69220pFC69220pF

C64470pFC64470pF

J5EARJACKJ5EARJACK1

2345

C66 1uFC66 1uF

R5247KR5247K

R48 680RR48 680R

R99 0RR99 0R

+ C5410uF

+ C5410uF

R540RR540R

C75DNPC75DNP

R38100KR38100K

+ C6110uF

+ C6110uF

+C63 220uF+C63 220uF

C55100nFC55100nF

R394.7KR394.7K

+ C7610uF

+ C7610uF

R435.6KR435.6K

C58100nFC58100nF

C77100nFC77100nF


R3747KR3747K

+ C5910uF

+ C5910uF


J7EARJACKJ7EARJACK1

2345

R510RR510R

+C60 220uF+C60 220uF

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

CK

CDA

DA2

DA3

DA0DA1

WKUP12

DA4

DA5

DA6

DA7PC31

PA25

PA6

PA3

PA7

PA4

PC30

PC28

PA5

PA8

PC29

DGND

DGND

+3V3DGND

+3V3

PA[31:0]{3,7,8,9,11,12,14,15}

PC[31:0]{3,5,6,7,11,14,15}




INIT EDITA

1015B

XX-XXX-XXZXL XXX

SD/MMC interface

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1015B

XX-XXX-XXZXL XXX

SD/MMC interface

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1015B

XX-XXX-XXZXL XXX

SD/MMC interface

03-FEB-09

SAM3U-EK RevB


R5810KR5810K

RA247KX4RA247KX4

12345 6 7 8

J87SDMM-B0-2211-AJ87SDMM-B0-2211-A

DAT21

RSV/DAT32

DAT43

CMD4

DAT55

GND6

VCC7

CLK8

DAT69

CD10

DAT711

DAT012

DAT113

SD_WP14

GROUND115

GROUND16

SHELLED117

SHELLED218

RA147KX4RA147KX4

12345 6 7 8

R5610KR5610K

C80100nFC80100nF

+ C7910uF

+ C7910uF

R5710KR5710K

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

3AXS_SLEEP#

ADC0_AD2ADC0_AD6ADC0_AD7

TWD0

TWCK0

TEMP_ALARM

BP_RIGHT#

BP_LEFT#

WAKE_UP#

PC13

PB3PC17PC18

PA10

PA19

PA18

PA18PA19

PA9

PA17

+3V3

DGND

+3V3

DGND

+3V3

DGND DGND DGND

DGND

+3V3

+3V3

DGND

DGND

VBU

PC[31:0]{3,5,6,7,10,14,15}

PB[31:0]{3,5,6,7,13,14,15}

PA[31:0]{3,7,8,9,10,12,14,15}

NRST{4,7,12,14}

NRSTB{4,14}

FWUP{4,14}




INIT EDITA

1115B

XX-XXX-XXZXL XXX

Accelerometer,Temp,Buttons

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1115B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB





INIT EDITA

1115B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB


R6447KR6447K

R62 0RR62 0R

BP2BP21

423

C81100nFC81100nF

R61 0RR61 0R

BP5BP51

423

C87 10nFC87 10nF

BP4BP41

423

BP3BP31

423

R63 0RR63 0R

R150RR150R

R6010KR6010K

C823.3nFC823.3nF

R160RR160R

R66100RR66100R

R5910KR5910K

C85100nFC85100nF

MN9MMA7341LMN9MMA7341L

g-Select10

Self Test13

Sleep7

XOUT2

YOUT3

ZOUT4 NC2

8

NC39

NC411

NC512

VDD6

VSS5

NC11

NC614

BP1BP11

423

R65100KR65100K

JP16 JPJP16 JP

C833.3nFC833.3nF

MN10MCP9800MN10MCP9800

VDD1

GND2

ALERT3

SCLK4

SDA5

C843.3nFC843.3nF

JP15 JPJP15 JP

C86 10nFC86 10nF

R67100RR67100R

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

VBUS_USB

NOT POPULATED

PA0

DGNDDGNDDGND

DGND

DGND

DGND

+3V3


NRST{4,7,11,14}

TDI{4,14}

TCK{4,14}

TDO{4,14}

TMS{4,14}

PA[31:0]{3,7,8,9,10,11,14,15}




INIT EDITA

1215B

XX-XXX-XXZXL XXX

USB & JTAG

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1215B

XX-XXX-XXZXL XXX

USB & JTAG

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1215B

XX-XXX-XXZXL XXX

USB & JTAG

03-FEB-09

SAM3U-EK RevB


MN11TPD3E001DRLRMN11TPD3E001DRLR

IO11

IO22

GND3

IO34

VCC5

C89100nFC89100nFR69

68KR6968K

R75 0RR75 0R

+ C9110uF

+ C9110uF

R71100KR71100K


R74100KR74100K

R73100KR73100K

R72100KR72100K

R68 47KR68 47K

C90100nFC90100nF

J10IDC20-2.54mmJ10IDC20-2.54mm

VTref1

Vsupply2

nTRST3

GND14

TDI5

GND26

TMS7

GND38

TCK9

GND410

RTCK11

GND512

TDO13

GND614

nSRST15

GND716

DBGRQ17

GND818

DBGACK19

GND920

C8810pFC8810pF

J9USB TYPE B PORTJ9USB TYPE B PORT

VBUS1

D-2 D+3

GND4

E_GND05 E_GND16

R70100KR70100K

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

AD12BAD3

AD0

USR_LED1#

USR_LED2#

POWER_LED#

Potentiometer

+3V3

+3V3

+2V5

+2V5

ADC

PB5

PB1

PB2

PB0

ADC

PB4

PB5PB4

PWR_CN

PWR_CN

DGND

+5V

DGND

DGND

+3V3DGND

DGND

+3V3

+5V

DGND

+3V3

DGND

+5V

DGND

DGND

DGND

+3V3 +5V

DGND

DGND

PB[31:0]{3,5,6,7,11,14,15}

SHDN{4,14}

AD12BVREF{4,14}

ADVREF{4,14}




INIT EDITA

1315B

XX-XXX-XXZXL XXX

Power Supply, ADC & Led

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1315B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB





INIT EDITA

1315B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB


Q1IRLML6401Q1IRLML6401

1

32

R87220RR87220R

JP17JPJP17JP R81

DNPR81DNP

D2 green-led

0603

D2 green-led

0603

C96100nFC96100nF

R86DNPR86DNP

R92220RR92220R

+ C9322uF

+ C9322uF

TP8GNDTP8GND

R840RR840R

VR110KVR110K

13

24

5

J11MP179P 2.1mmJ11MP179P 2.1mm

12

3

R85220RR85220R

CN1BNCCN1BNC

1234

5

D3 green-led

0603

D3 green-led

0603

JP19JPJP19JP

R89 100KR89 100K

R8349.9R 1%R8349.9R 1%

MN15LM4040-2.5

MN15LM4040-2.5

MN14BNX002-01MN14BNX002-01

SV1

SG2

CV3

CG14

CG25

CG36

CN2BNCCN2BNC

1234

5

R76330R 1%R76330R 1%

MN12MIC29152WUMicrel's 1.5A LDO, TO263-5

MN12MIC29152WUMicrel's 1.5A LDO, TO263-5

VIN2

VOUT4

SD1

GN

D1

3

ADJ5

GN

D2

6

TP6GNDTP6GND

D4 red-led

0603

D4 red-led

0603

C9710nFC9710nF

Q3IRLML2502

Q3IRLML2502

1

32

JP20JUMP_3JP20JUMP_3

12

3

C9910nFC9910nF

R904.7KR904.7K

R8849.9R 1%R8849.9R 1%

R78100KR78100K R79

100KR79100K

R8010KR8010K

+ C95100uF

+ C95100uF

C92100nFC92100nF

C9415pFC9415pF

Q2IRLML2502

Q2IRLML2502

1

3

2

C103100nFC103100nF

TP7GNDTP7GND

JP18JPJP18JP

JP5JUMP_3JP5JUMP_3

12

3

C9810nFC9810nF

R77200R 1%R77200R 1%

TP3+3V3TP3+3V3

C104100nFC104100nF

TP5GNDTP5GND

TP4+5VTP4+5V

MN13ZEN056V130A24LSMN13ZEN056V130A24LS

1

2

3

R820RR820R

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

7020-144-608 ANTARES

NOT POPULATED

PC20PA26

PA24PA25

PA23PA21PA20

PC12

PA18PC13

PA17

PB15PB16

PA19

PA16

PC18

PC15

PA15

PB3

PC17

PA30

PB4

PA13

PC10

PC16

PA14

PC11

PA22AD12BVREF

ADVREF

PB21PC21

TCK

PB14

PC19

PB23

PB27

TMS

PB19

PB22

PB18

PB25

PB28

PC14

PB24

PB26

PB30

TDO

PB20

PB9

NRST

XOUT

PB31

TDI

XIN

PB17

PB10

PB29

PA

0P

C0

PA

1P

C1

PA

2P

C2

PA

3P

C3

PA

4P

C4

PA

5P

C5

PA

6P

C6

PA

7

XIN

32X

OU

T32

JTA

GS

EL

NR

STB

TES

TE

RA

SE

SH

DN

FWU

PP

A12

PA

11P

A10

PC

9P

A9

PC

8P

A8

PB

13

PC

28

PC

23

PC

31

PA

29

VB

G

PB

11

PC

29

PA

31

PC

30

DH

SD

P

PB

0

DH

SD

M

PC

24

PB

6P

B7

PB

12

PA

27

PC

26

PA

28

PB

5

PC

22

PC

27

PB

8

DFS

DP

DFS

DM

PB

1P

C25

PB

2

PC0PC1PC2PC3

PC5

PC7PC6

PC4

PC15

PC9

PC11

PC13PC12

PC10

PC14

PC8

PC31

PC27

PC23

PC30

PC17

PC19

PC21

PC29

PC20

PC18

PC22

PC24

PC16

PC28

PC26PC25

PB31

PB17PB16PB15

PB11

PB26

PB7

PB14

PB1

PB20

PB28

PB18

PB3

PB5

PB13

PB24

PB4

PB2

PB27

PB6

PB25

PB8

PB29

PB0

PB21

PB12

PB22

PB10

PB30

PB23

PB19

PB9

PA20

PA6

PA25

PA22

PA31

PA12

PA2

PA4

PA18PA19

PA26

PA17

PA28

PA23

PA3

PA30

PA13

PA5

PA0

PA15

PA21

PA24

PA27

PA7

PA10

PA16

PA14

PA29

PA9

PA1

PA8

PA11

ERASETESTJTAGSEL

VBGNRSTNRSTB

TDOTDI

TMSTCKDHSDP

DFSDMDHSDM

DFSDPXIN32XOUT32

XOUTXIN

AD12BVREF

PC

7

FWUPSHDN

ADVREF

DGND

VCORE

VANA

VUTMI

VOUTVIN

VCOREVIO

VCORE

VPLL

VCORE VIO

VIOVCORE

VIO

VIOVBU

VCORE

PC[31:0]{3,5,6,7,10,11,15}

PB[31:0]{3,5,6,7,11,13,15}

PA[31:0]{3,7,8,9,10,11,12,15}

ERASE{4}TEST{4}JTAGSEL{4}FWUP{4,11}

VBG{4}NRST{4,7,11,12}NRSTB{4,11}TDI{4,12}

TMS{4,12}TCK{4,12}

XIN32{4}XOUT32{4}XIN{4}XOUT{4}

SHDN{4,13}

TDO{4,12}

DFSDP{4}DFSDM{4}

ADVREF{4,13}AD12BVREF{4,13}





INIT EDITA

1415B

XX-XXX-XXZXL XXX

SAM3U socket

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1415B

XX-XXX-XXZXL XXX

SAM3U socket

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1415B

XX-XXX-XXZXL XXX

SAM3U socket

03-FEB-09

SAM3U-EK RevB


J12

SAM3U Socket

J12

SAM3U Socket

11

22

33

44

55

66

77

88

99

1010

1111

1212

1313

1414

1515

1616

1717

1818

1919

2020

2121

2222

2323

2424

2525

2626

2727

2828

2929

3030

3131

3232

3333

3434

3535

3636

3737

3838

3939

4040

4141

4242

4343

4444

4545

4646

4747

4848

4949

5050

5151

5252

5353

5454

5555

5656

5757

5858

5959

6060

6161

6262

6363

6464

6565

6666

6767

6868

6969

7070

7171

7272

737374747575767677777878797980808181828283838484858586868787888889899090919192929393949495959696979798989999100100101101102102103103104104105105106106107107108108

109

109

110

110

111

111

112

112

113

113

114

114

115

115

116

116

117

117

118

118

119

119

120

120

121

121

122

122

123

123

124

124

125

125

126

126

127

127

128

128

129

129

130

130

131

131

132

132

133

133

134

134

135

135

136

136

137

137

138

138

139

139

140

140

141

141

142

142

143

143

144

144

145

145

146146

TP12SMDTP12SMD

TP9SMDTP9SMD

TP11SMDTP11SMD

TP10SMDTP10SMD

5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

IRQ0_ZBEEIRQ1_ZBEESPIO_NPCS0#MISO

MOSISPCK

SLP_TRZB_RSTN

SOLDER DROP 2 pins open.Normal

SOLDER DROP 2 pins open.Normal

PA13PA16

PA15

PA1PC27

PA14PC26

PB6

PB1

PB3

PB7

PB13

PB11

PB14

PB9

BB4

PB0

PB8

BB5

PB15

PB10

PB2

PB12

PB22

PB17

PB19

PB23

PB29

PB27

PB30

PB25

PB20

PB16

PB24

PB21

PB31

PB26

PB18

PB28PC29

PC25

PC12

PC9

PC31PC14

PC8PC23

PC3

PC0

PC11

PC21

PC30

PC19PC2

PC7

PC16

PC24

PC22PC5

PC17PC1

PC27

PC6

PC20

PC28

PC15

PC13

PC10 PC26

PC4

PC18

PB4PB5

BB4BB5

PA0

PA21

PA9

PA27

PA23

PA28

PA5PA22

PA17

PA11

PA24

PA29

PA1

PA14

PA8

PA18

PA12PA13

PA2

PA7PA6

PA30

PA0

PA10

PA16

PA26

PA3

PA25

PA31

PA20PA4

PA15

PA19

DGND DGND DGND DGND DGND DGND

+3V3 +3V3+3V3 +3V3 +3V3+3V3

DGND

+3V3

+5V +5V +5V +5V +5V +5V

PC[31:0]{3,5,6,7,10,11,14}

PB[31:0]{3,5,6,7,11,13,14}

PA[31:0]{3,7,8,9,10,11,12,14}




INIT EDITA

1515B

XX-XXX-XXZXL XXX

User interface & ZigBee

03-FEB-09

SAM3U-EK RevB





INIT EDITA

1515B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB





INIT EDITA

1515B

XX-XXX-XXZXL XXX


03-FEB-09

SAM3U-EK RevB


R100 0RR100 0R

J15048J15048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

C10018pFC10018pF

J14048J14048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

SD4SD4

C1022.2uFC1022.2uF

J13048J13048

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 2627 2829 3031 3233 3435 3637 3839 40

J16J161 23 45 67 89 10

C1012.2nFC1012.2nF

SD3SD3

JP21JPJP21JP

Section 6

Troubleshooting

6.1 Self-Test

A test package software is available to implement a functional test for each section of the board. Refer to the SAM3U-EK page on www.atmel.com.

6.2 Board Recovery

The SAM3U-EK is delivered with an on-board recovery procedure allowing to reprogram the board as it was when shipped. This procedure is accessible from the Flash disk mounted on a PC when the board is connected to this PC through the USB as described in Section 3.



Section 7

Errata

7.1 JTAG/ICE: Missing Pull-up Resistor on TDO Pin

The TDO pin is in input mode with the pull-up resistor disabled when the Cortex M3 is not in debug mode.

Problem Fix/Workaround

To avoid current consumption on VDDIO and/or VDDCORE due to floating input, an external pull-up resistor (100 kΩ) corresponding to this PIO line must be added.



Errata



Section 8

Revision History

8.1 Revision History

Table 8-1.

Document CommentsChange Request Ref.

6478F Section 5.1, ” Schematics”, PB5/AD1 changed to PB5/AD0 on Sheet 3/15. 7949

6478E Erratum added as a Section 7.1 in a newly created Section 7 “Errata” . 7638

6478D Table 4-5, “PIO Port A Assignment” , first row edited. 7387

6478CVendor name and reference removed from PSRAM in Section 4.3.2, ” Memory” and Figure 4-2, ” PSRAM” 6975

6478B

Table 4-8, JP15 and JP16 Default Settings changed from ‘Open’ to ‘Close’; JP16 Feature edited.

6445

Table 4-8, JP17 Default Setting changed from ‘Open’ to ‘Close’; JP17 Feature edited. 6727

6478A First issue.




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