June 2016 DocID029197 Rev 1 1/12

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UM2048User manual

DSI to HDMI adapter board for STM32 Development Tools

Introduction

The DSI to HDMI adapter board (order code B-LCDAD-HDMI1) provides DSI input port and HDMI output port. It can be used on STM32 evaluation boards or discovery boards, to demonstrate video solutions based on STM32 MCUs.

Thanks to the bridge chip ADV7533, the DSI to HDMI adapter board can support 2-, 3- or 4-lanes DSI video input data, S/PDIF, 2-channels I2S audio input data and HDMI v1.3 output port.

The B-LCDAD-HDMI1 adapter board has the following features:

• Up to four lanes of MIPI/DSI data, each running up to 800 Mbps (video mode only: Non-Burst mode with synchronization pulse)

• 2-channels I2S transmit stereo up to 192 kHz sampling rate

• S/PDIF carries stereo LPCM audio or compressed audio

• HDMI output connector:

– Support of video resolutions with pixel clocks up to 80 MHz

– Support of CEC signals, 5 V-tolerant I2C and HPD I/Os

– Common-mode filters with ESD protection

Figure 1. DSI to HDMI adapter board

Front side

Back side

Pictures not contractual

www.st.com

Contents UM2048

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Contents

1 Hardware Layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Video and audio input connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Video input (MIPI DSI) signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Audio input (S/PDIF & I2S) signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Control signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 HDMI output connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

DocID029197 Rev 1 3/12

UM2048 List of tables

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List of tables

Table 1. Video and audio input connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 2. HDMI output connector CN2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 3. CEC source connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Table 4. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

List of figures UM2048

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List of figures

Figure 1. DSI to HDMI adapter board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2. Hardware Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Figure 3. DSI to HDMI adapter board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Figure 4. Board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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UM2048 Hardware Layout and configuration

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1 Hardware Layout and configuration

DSI to HDMI adapter board is designed around the ADV7533. Figure 2 illustrates the connections on DSI to HDMI adapter board and Figure 3 will help to locate these features on the actual evaluation board.

Figure 2. Hardware Block Diagram

Figure 3. DSI to HDMI adapter board layout

Video and audio input connector UM2048

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2 Video and audio input connector

A male high speed connector CN1 on bottom side is used to implement DSI to HDMI adapter board on mother board. The 4-lane DSI video signals, audio (I2S or S/PDIF) signals, CEC signals and control signals (I2C bus, reset and interrupt signals) are on this connector.

Table 1 shows the pinout of CN1.

Table 1. Video and audio input connector CN1

Pin number Description Interface Pin number Description Interface

1 GND - 2 - -

3 DSI_CK_P DSI 4 INT Interrupt output

5 DSI_CK_N DSI 6 GND -

7 GND - 8 DSI_D2_P DSI

9 DSI_D0_P DSI 10 DSI_D2_N DSI

11 DSI_D0_N DSI 12 GND -

13 GND - 14 DSI_D3_P DSI

15 DSI_D1_P DSI 16 DSI_D3_N DSI

17 DSI_D1_N DSI 18 - -

19 GND - 20 - -

21 +5 V - 22 - -

23 +5 V - 24 - -

25 - - 26 - -

27 - - 28 - -

29 - - 30 - -

31 - - 32 - -

33 - - 34 - -

35 SCLK/MCLK Audio 36 3.3 V

37 LRCLK Audio 38 - -

39 I2S/SPDIF Audio 40 I2C_SDA I2C

41 - - 42 - -

43 - - 44 I2C_SCL I2C

45 CEC_CLK CEC 46 - -

47 CEC CEC 48 - -

49 - - 50 - -

51 - - 52 - -

53 - - 54 - -

55 - - 56 - -

57 RESET Reset input 58 - -

59 - - 60 1.8V -

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UM2048 Video and audio input connector

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2.1 Video input (MIPI DSI) signals

4-lane MIPI DSI signals are connected on DSI to HDMI adapter board as video input interface. This board supports 2-, 3- or 4-lane DSI video input data and each running up to 800 Mbps.

DSI interface is compatible with DPHY V.0.90 and DSI V.1.02 and Supports inputs of 16-bit RGB 4:4:4, 24-bit RGB 4:4:4 and 30-bit RGB 4:4:4.

2.2 Audio input (S/PDIF & I2S) signals

S/PDIF or I2S audio input interface is implemented on CN1. DSI to HDMI adapter board supports standard S/PDIF for stereo LPCM or compressed audio up to 192 kHz, or 2-channel uncompressed LPCM I2S audio up to 192 kHz.

2.3 Control signals

I2C bus on CN1 serves as the serial port data I/O slave for register access. The default address is 0x7A.

Reset signal from mother board is connected to Power Down (PD) pin on ADV7533. It is internal pulled up by ADV7533.

Interrupt output signal is for mother board and it is pull up on DSI to HDMI adapter board.

HDMI output connector UM2048

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3 HDMI output connector

A standard HDMI output connector CN2 is implemented on DSI to HDMI adapter board. The output supports all video and graphics resolutions from 480i to 1080p at 30 Hz. Thanks to common-mode filter with ESD protection parts, HDMI output connector is complies with IEC 61000-4-2 level 4 standard.

On CN2, I2C master for EDID reading and HDCP operations reports HDMI events through interrupts and registers. Hot Plug Detect Signal (HPD) Indicates to the interface whether the receiver is connected.

Table 2 shows the pinout of CN2.

Table 2. HDMI output connector CN2

Pin number Description Pin number Description

1 TMDS D2+ 11 GND

2 GND 12 TMDS Clock-

3 TMDS D2- 13 CEC

4 TMDS D1+ 14 NC

5 GND 15 DDC_I2C_SCL

6 TMDS D1- 16 DDC_I2C_SDA

7 TMDS D0+ 17 GND

8 GND 18HDMI_5V_Source from

power switch U5

9 TMDS D0- 19 HPD

10 TMDS Clock+ - -

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UM2048 CEC

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4 CEC

There are two sources of CEC signal on HDMI output connector on DSI to HDMI adapter board. One source (Default setting) is from ADV7533 and its clock is from X1 on the board. The other source is from CN1 and mother board. Some PCB reworks should be done when using the second source shown in Table 3.

Table 3. CEC source connection

CEC source Mount Remove

ADV7533 (Default) SB10 SB5

CN1 (Mother board) SB5 SB10

Sc

he

ma

ticU

M2

048

10/1

2D

ocID029

197 Re

v 1

5 Schematic

Figure 4. Board schematic

1 1

DSI to HDMI adapter

MB1232 A.1

5/20/2016

Title:

Size: Reference:

Date: Sheet: of

A4 Revision:

HDMI daugher boardProject:

Source

+5V

C204.7uF

GND 2

IN 5

EN 4OUT1 FAULT3U5

STMPS2141STR@54

HDMI_5V_Source

+5V

TMDS_Data2+TMDS_Data2-

TMDS_Data1+TMDS_Data1-

TMDS_Data0+TMDS_Data0-

TMDS_Clock+TMDS_Clock-

Tx2- A2

GND C7LRCLKD3

V1P

2D4

INT

D5

CEC

D6

GND E7

GND F1

CEC

_CLK

D7

DRx3+G6 Tx1+ A3

GND B5

AVDD

B4

GND B3GND B2

V3P

3B1

PDC3

HPD

C4

R_EXTC5

PVDD

C6

DRx1-F4

DVDD

E4

SDA

E5SC

LE6

GND B6

Tx0+ A5

GND E1

DVDD

E2

V1P

2E3

DVDD

G1

DRxC+G2

DRx0+G3

DRx1+G4

DRx2+G5

DRx2-F5

TxC- B7

DRx3-F6

GND F7

Tx1- A4

Tx2+ A1

DDC_S

DA

D2

DRx0-F3

I2S/SPDIFC1

Tx0- A6

DDC_S

CL

D1

DRxC-F2

SCLK/MCLKC2

TxC+ A7

A2V

DD

G7

U2ADV7533BCBZ-RL

+3V3

I2C_SDA

I2C_SCL

INT

+5V

Connector for motherboard

HSSI_CLK_NHSSI_CLK_P

HSSI_D0_NHSSI_D0_P

HSSI_D1_NHSSI_D1_P

RST

C19100nF

1 122

3 344

5 566

7 788

9 91010

11 111212

13 131414

15 151616

17 171818

19 192020

21 212222

23 232424

25 252626

27 272828

29 293030

31 313232

33 333434

35 353636

37 373838

39 394040

41 414242

43 434444

45 454646

47 474848

49 495050

51 515252

53 535454

55 555656

57 575858

59 596060

61 61

62 62

63 63

64 64

CN1

QTH-030-02-F-D-A

HSSI_D2_NHSSI_D2_P

HSSI_D3_NHSSI_D3_P

SCLKLRCLKI2S

CEC_CLK

INT+1V8_CON

C21100nF

HPD

DDC_SDADDC_SCL

L110

uH

L310

uH

L210

uH

L410

uH

L510

uH

L610

uH

C3

10uFC9 100nF

C15 100nF

+3V3

C10 100nF

C4

10uF

+1V8

C14 100nF

C5

10uFC11 100nF

C6

10uF

C7

10uFC12 100nF

C8

10uFC13 100nF

C16 100nF

C17 100nF

R610K

R8[N/A]

R9[N/A]

+1V8

SB11Closed

R727K

+3V3

D1

BAR18

R21K[1%]

+3V3

CECA2 GND B2

5V A1SCLA3

SDAB3 RPU C1

GND C2HPDC3

U6

HDMI05-CL01F3

CEC

+5VC23100nF

C24100nF

Vin3 Vout 2

1

Tab 4

U1LD1117S18TR

C210uF

+3V3SB3 Closed

SB2 Open +1V8

+1V8_CON

SB8 Closed

SB9

Open

SB7

Open

H1

Note: Text in italic placed on a wire doesn¡¯t correspond to net name. It just helps to identify rapidly MCU IO related to this wire.

SB6Closed

R12K

R52K[N/A]

R32K[N/A]

R42K[N/A]

C22100nF

SB5 Open

SB10Closed

CEC_IO

Differential pairs 100ohm

Differential pairs 100ohm

Differential pairs 100ohm

C18100nF

I2C address:0x7A

C110uF

R10

120[N/A]

SB1Closed

V1P2

V1P2

VDD 4OUT3

EN 1GND2

X1

NZ2520SB-12.000000M-NSA3412D

+3V3

C25100nF

R11 10K

SB4 Open

SB13 OpenSB12 Closed +1V8

R1310K

R1210K

123456789

10111213141516171819

222021

CN2

HD11

9F-3A09

200

GND 3

D1- 2

D1+ 1D1+10 D1-9

D2+ 4D2- 5D2-6

D2+7

GND8

U3ECMF04-4HSWM10

GND 3

D1- 2

D1+ 1D1+10 D1-9

D2+ 4D2- 5D2-6

D2+7

GND8

U4

ECMF04-4HSWM10

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UM2048 Revision history

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6 Revision history

Table 4. Document revision history

Date Revision Changes

09-Jun-2016 1 Initial release.

UM2048

12/12 DocID029197 Rev 1

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