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TMS320DM36x Digital Media System-on-Chip(DMSoC) Face Detection

User's Guide

Literature Number: SPRUGG8A

May 2009–Revised July 2010

2 SPRUGG8A–May 2009–Revised July 2010

Copyright © 2009–2010, Texas Instruments Incorporated

Preface ...................................................................................................................................... 151 Purpose of the Peripheral ................................................................................................... 18

1.1 Features ................................................................................................................. 18

1.2 Functional Block Diagram ............................................................................................. 18

1.3 Supported Use Case Statement ..................................................................................... 19

1.4 Industry Standard(s) Compliance Statement ....................................................................... 19

2 Major Features / Common Architecture ................................................................................ 192.1 Detection Direction, Rotation In Plane, Rotation Out of Plane ................................................... 19

2.2 Region of Interest ...................................................................................................... 21

2.3 External Memory Space .............................................................................................. 22

2.4 Reset Considerations .................................................................................................. 23

2.5 Initialization ............................................................................................................. 24

2.6 Interrupt Support ....................................................................................................... 24

2.7 Power Management ................................................................................................... 27

2.8 Emulation Considerations ............................................................................................. 27

3 SW Configuration .............................................................................................................. 274 Registers .......................................................................................................................... 30

4.1 FDIF_PID Register ..................................................................................................... 34

4.2 FDIF Interrupt Enable (FDIF_INTEN) Register .................................................................... 35

4.3 FDIF Picture Data Address (FDIF_PICADDR) Register .......................................................... 36

4.4 FDIF Work Area Address (FDIF_WKADDR) Register ............................................................ 37

4.5 FD Core Control (FD_CTRL) Register .............................................................................. 38

4.6 Face Detect Number (FD_DNUM) Register ........................................................................ 39

4.7 Detect Condition Set (FD_DCOND) Register ...................................................................... 40

4.8 X Start Address (FD_STARTX) Register ........................................................................... 41

4.9 Y Start Address (FD_STARTY) Register ........................................................................... 42

4.10 X Size for Detection (FD_SIZEX) Register ......................................................................... 43

4.11 Y Size for Detection (FD_SIZEY) Register ......................................................................... 44

4.12 Detect Process Threshold (FD_LHIT) Register .................................................................... 45

4.13 Detect Result Center X Address (FD_CENTERX1) Register .................................................... 46

4.14 Detect Result Center Y Address (FD_CENTERY1) Register .................................................... 47

4.15 Detect Result Confidence/Size (FD_CONFSIZE1) Register ..................................................... 48

4.16 Detect Angle (FD_ANGLE1) Register ............................................................................... 49











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4.48 Detect Angle(FD_ANGLE9) Register ............................................................................... 81

4.49 Detect Result Center X Address (FD_CENTERX10) Register .................................................. 82

4.50 Detect Result Center Y Address(FD_CENTERY10) Register ................................................... 83

4.51 Detect Result Confidence/Size (FD_CONFSIZE10) Register ................................................... 84

4.52 Detect Angle (FD_ANGLE10) Register ............................................................................. 85


4.54 Detect Result Center Y Address (FD_CENTERY11) Register .................................................. 87




4.58 Detect Result Center Y Address (FD_CENTERY12) Register .................................................. 91


4.60 Detect Angle(FD_ANGLE12) Register .............................................................................. 93

4.61 Detect Result Center X Address(FD_CENTERX13) Register ................................................... 94






4.67 Detect Result Confidence/Size (FD_CONFSIZE14) Register .................................................. 100

4.68 Detect Angle (FD_ANGLE14) Register ............................................................................ 101

4.69 Detect Result Center X Address (FD_CENTERX15) Register ................................................. 102

4.70 Detect Result Center Y Address (FD_CENTERY15) Register ................................................. 103





4 Contents SPRUGG8A–May 2009–Revised July 2010


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4.76 Detect Angle(FD_ANGLE16) Register ............................................................................ 109







4.83 Detect Result Confidence/Size(FD_CONFSIZE18) Register ................................................... 116


4.85 Detect Result Center X Address(FD_CENTERX19) Register .................................................. 118

4.86 Detect Result Center Y Address(FD_CENTERY19) Register .................................................. 119












4.98 Detect Result Center Y Address(FD_CENTERY22) Register .................................................. 131






4.104 Detect Angle (FD_ANGLE23) Register ........................................................................... 137











4.115 Detect Result Confidence/Size(FD_CONFSIZE26) Register .................................................. 148









5SPRUGG8A–May 2009–Revised July 2010 Contents


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4.130 Detect Result Center Y Address(FD_CENTERY30) Register ................................................. 163















4.145 Detect Result Center X Address(FD_CENTERX34) Register ................................................. 178


4.147 Detect Result Confidence/Size Register (FD_CONFSIZE34) .................................................. 180






Appendix A Revision History ..................................................................................................... 186

6 Contents SPRUGG8A–May 2009–Revised July 2010


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List of Figures

1 Face Detection Module in VPSS ........................................................................................ 19

2 Rotation In Plane .......................................................................................................... 20

3 Rotation Out of Plane ..................................................................................................... 21

4 Region of Interest.......................................................................................................... 22

5 External Memory Space .................................................................................................. 22

6 Image Storage Format .................................................................................................... 23

7 FDIF_PID Register ........................................................................................................ 34

8 FDIF Interrupt Enable (FDIF_INTEN) Register ........................................................................ 35

9 FDIF Picture Data Address (FDIF_PICADDR) Register ............................................................. 36

10 FDIF Work Area Address (FDIF_WKADDR) Register................................................................ 37

11 FD Core Control (FD_CTRL) Register ................................................................................. 38

12 FD Detect Number (FD_DNUM) Register ............................................................................. 39

13 Detect Condition Set (FD_DCOND) Register ......................................................................... 40

14 X Start Address (FD_STARTX) Register............................................................................... 41

15 Y Start Address (FD_STARTY) Register .............................................................................. 42

16 X Size for Detection (FD_SIZEX) Register ............................................................................ 43

17 Y Size for Detection (FD_SIZEY) Register ............................................................................ 44

18 Detect Process Threshold (FD_LHIT) Register ....................................................................... 45

19 Detect Result Center X Address (FD_CENTERX1) Register ....................................................... 46

20 Detect Result Center Y Address (FD_CENTERY1) Register........................................................ 47

21 Detect Result Confidence/Size (FD_CONFSIZE1) Register......................................................... 48

22 Detect Angle (FD_ANGLE1) Register .................................................................................. 49









31 Detect Result Center X Address (FD_CENTERX4) Register........................................................ 58















46 Detect Angle (FD_ANGLE7) Register ................................................................................. 73


7SPRUGG8A–May 2009–Revised July 2010 List of Figures


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50 Detect Angle(FD_ANGLE8) Register .................................................................................. 77





55 Detect Result Center X Address (FD_CENTERX10) Register ...................................................... 82

56 Detect Result Center Y Address (FD_CENTERY10) Register ...................................................... 83

57 Detect Result Confidence/Size (FD_CONFSIZE10) Register ....................................................... 84

58 Detect Angle (FD_ANGLE10) Register................................................................................. 85

59 Detect Result Center X Address (FD_CENTERX11) Register ..................................................... 86





64 Detect Result Center Y Address (FD_CENTERY12) Register ..................................................... 91


66 Detect Angle(FD_ANGLE12) Register ................................................................................. 93







73 Detect Result Confidence/Size (FD_CONFSIZE14) Register...................................................... 100

74 Detect Angle (FD_ANGLE14) Register ............................................................................... 101

75 Detect Result Center X Address (FD_CENTERX15) Register..................................................... 102

76 Detect Result Center Y Address (FD_CENTERY15) Register..................................................... 103







83 Detect Result Center X Address (FD_CENTERX17) Register .................................................... 110






89 Detect Result Confidence/Size (FD_CONFSIZE18) Register ..................................................... 116








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104 Detect Result Center Y Address (FD_CENTERY22) Register .................................................... 131




108 Detect Result Center Y Address (FD_CENTERY23) Register .................................................... 135






























138 Detect Angle (FD_ANGLE30) Register .............................................................................. 165








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10 List of Figures SPRUGG8A–May 2009–Revised July 2010


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List of Tables

1 VPSS INTSEL1 Register Field Descriptions ........................................................................... 24



4 Face Detection Module Registers ....................................................................................... 30

5 FDIF_PID Field Descriptions............................................................................................. 34

6 FDIF Interrupt Enable (FDIF_INTEN) Field Descriptions ............................................................ 35

7 FDIF Picture Data Address (FDIF_PICADDR) Field Descriptions .................................................. 36

8 FDIF Work Area Address (FDIF_WKADDR) Field Descriptions .................................................... 37

9 FD Core Control (FD_CTRL) Field Descriptions ...................................................................... 38

10 Face Detect Number (FD_DNUM) Field Descriptions ................................................................ 39

11 Detect Condition Set (FD_DCOND) Field Descriptions .............................................................. 40

12 X Start Address (FD_STARTX) Field Descriptions ................................................................... 41

13 Y Start Address (FD_STARTY) Field Descriptions ................................................................... 42

14 X Size for Detection (FD_SIZEX) Field Descriptions ................................................................. 43

15 Y Size for Detection (FD_SIZEY) Field Descriptions ................................................................. 44

16 Detect Process Threshold (FD_LHIT) Field Descriptions ............................................................ 45

17 Detect Result Center X Address (FD_CENTERX1) Field Descriptions ............................................ 46

18 Detect Result Center Y Address (FD_CENTERY1) Field Descriptions ............................................ 47

19 Detect Result Confidence/Size (FD_CONFSIZE1) Field Descriptions ............................................. 48

20 Detect Angle (FD_ANGLE1) Field Descriptions....................................................................... 49




24 Detect Angle Register (FD_ANGLE2) Field Descriptions ............................................................ 53
























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53 Detect Result Center X Address (FD_CENTERX10) Field Descriptions........................................... 82

54 Detect Result Center Y Address (FD_CENTERY10) Field Descriptions........................................... 83

55 Detect Result Confidence/Size (FD_CONFSIZE10) Field Descriptions............................................ 84

56 Detect Angle (FD_ANGLE10) Field Descriptions ..................................................................... 85















71 Detect Result Confidence/Size (FD_CONFSIZE14) Field Descriptions .......................................... 100

72 Detect Angle (FD_ANGLE14) Field Descriptions.................................................................... 101

73 Detect Result Center X Address (FD_CENTERX15) Field Descriptions ......................................... 102

74 Detect Result Center Y Address (FD_CENTERY15) Field Descriptions ......................................... 103




















94 Detect Result Center Y Address (FD_CENTERY20) Field Descriptions ........................................ 123



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100 Detect Angle (FD_ANGLE21) Field Description ..................................................................... 129







107 Detect Result Confidence/Size (FD_CONFSIZE23) Field Description ........................................... 136







































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157 Revisions.................................................................................................................. 186

14 List of Tables SPRUGG8A–May 2009–Revised July 2010


PrefaceSPRUGG8A–May 2009–Revised July 2010

Read This First

About This Manual

This document describes the face detection capabilities for the TMS320DM36x Digital MediaSystem-on-Chip (DMSoC).

Notational Conventions

This document uses the following conventions.

• Hexadecimal numbers are shown with the suffix h. For example, the following number is 40hexadecimal (decimal 64): 40h.

• Registers in this document are shown in figures and described in tables.

– Each register figure shows a rectangle divided into fields that represent the fields of the register.Each field is labeled with its bit name, its beginning and ending bit numbers above, and itsread/write properties below. A legend explains the notation used for the properties.

– Reserved bits in a register figure designate a bit that is used for future device expansion.

Related Documentation From Texas Instruments

The following documents describe the TMS320DM36x Digital Media System-on-Chip (DMSoC). Copies ofthese documents are available on the internet at www.ti.com.

SPRUFG5 — TMS320DM365 Digital Media System-on-Chip (DMSoC) ARM Subsystem ReferenceGuide This document describes the ARM Subsystem in the TMS320DM36x Digital MediaSystem-on-Chip (DMSoC). The ARM subsystem is designed to give the ARM926EJ-S (ARM9)master control of the device. In general, the ARM is responsible for configuration and control of thedevice; including the components of the ARM Subsystem, the peripherals, and the externalmemories.

SPRUFG8 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Video Processing Front End(VPFE) Users Guide This document describes the Video Processing Front End (VPFE) in theTMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFG9 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Video Processing Back End(VPBE) Users Guide This document describes the Video Processing Back End (VPBE) in theTMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFH0 — TMS320DM36x Digital Media System-on-Chip (DMSoC) 64-bit Timer Users Guide Thisdocument describes the operation of the software-programmable 64-bit timers in theTMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFH1 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Serial Peripheral Interface(SPI) Users Guide This document describes the serial peripheral interface (SPI) in theTMS320DM36x Digital Media System-on-Chip (DMSoC). The SPI is a high-speed synchronousserial input/output port that allows a serial bit stream of programmed length (1 to 16 bits) to beshifted into and out of the device at a programmed bit-transfer rate. The SPI is normally used forcommunication between the DMSoC and external peripherals. Typical applications include aninterface to external I/O or peripheral expansion via devices such as shift registers, display drivers,SPI EPROMs and analog-to-digital converters.

15SPRUGG8A–May 2009–Revised July 2010 Preface


http://www.ti.com/lit/pdf/SPRUFG5



http://www.ti.com/lit/pdf/SPRUFH0


About This Manual www.ti.com

SPRUFH2 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Universal AsynchronousReceiver/Transmitter (UART) Users Guide This document describes the universal asynchronousreceiver/transmitter (UART) peripheral in the TMS320DM36x Digital Media System-on-Chip(DMSoC). The UART peripheral performs serial-to-parallel conversion on data received from aperipheral device, and parallel-to-serial conversion on data received from the CPU.

SPRUFH3 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Inter-Integrated Circuit (I2C)Peripheral Users Guide This document describes the inter-integrated circuit (I2C) peripheral in theTMS320DM36x Digital Media System-on-Chip (DMSoC). The I2C peripheral provides an interfacebetween the DMSoC and other devices compliant with the I2C-bus specification and connected byway of an I2C-bus.

SPRUFH5 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Multimedia Card(MMC)/Secure Digital (SD) Card Controller Users Guide This document describes themultimedia card (MMC)/secure digital (SD) card controller in the TMS320DM36x Digital MediaSystem-on-Chip (DMSoC).

SPRUFH6 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Pulse-Width Modulator (PWM)Users Guide This document describes the pulse-width modulator (PWM) peripheral in theTMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFH7 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Real-Time Out (RTO)Controller Users Guide This document describes the Real Time Out (RTO) controller in theTMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFH8 — TMS320DM36x Digital Media System-on-Chip (DMSoC) General-Purpose Input/Output(GPIO) Users Guide This document describes the general-purpose input/output (GPIO) peripheralin the TMS320DM36x Digital Media System-on-Chip (DMSoC). The GPIO peripheral providesdedicated general-purpose pins that can be configured as either inputs or outputs.

SPRUFH9 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Universal Serial Bus (USB)Controller Users Guide This document describes the universal serial bus (USB) controller in theTMS320DM36x Digital Media System-on-Chip (DMSoC). The USB controller supports datathroughput rates up to 480 Mbps. It provides a mechanism for data transfer between USB devicesand also supports host negotiation.

SPRUFI0 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Enhanced Direct MemoryAccess (EDMA) Controller Users Guide This document describes the operation of the enhanceddirect memory access (EDMA3) controller in the TMS320DM36x Digital Media System-on-Chip(DMSoC). The EDMA controller's primary purpose is to service user-programmed data transfersbetween two memory-mapped slave endpoints on the DMSoC.

SPRUFI1 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Asynchronous ExternalMemory Interface (EMIF) Users Guide This document describes the asynchronous externalmemory interface (EMIF) in the TMS320DM36x Digital Media System-on-Chip (DMSoC). The EMIFsupports a glueless interface to a variety of external devices.

SPRUFI2 — TMS320DM36x Digital Media System-on-Chip (DMSoC) DDR2/Mobile DDR(DDR2/mDDR) Memory Controller Users Guide This document describes the DDR2/mDDRmemory controller in the TMS320DM36x Digital Media System-on-Chip (DMSoC). TheDDR2/mDDR memory controller is used to interface with JESD79D-2A standard compliant DDR2SDRAM and mobile DDR devices.

SPRUFI3 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Multibuffered Serial PortInterface (McBSP) User's Guide This document describes the operation of the multibuffered serialhost port interface in the TMS320DM36x Digital Media System-on-Chip (DMSoC). The primaryaudio modes that are supported by the McBSP are the AC97 and IIS modes. In addition to theprimary audio modes, the McBSP supports general serial port receive and transmit operation.

SPRUFI4 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Universal Host Port Interface(UHPI) User's Guide This document describes the operation of the universal host port interface inthe TMS320DM36x Digital Media System-on-Chip (DMSoC).

16 Read This First SPRUGG8A–May 2009–Revised July 2010









http://www.ti.com/lit/pdf/SPRUFI0





www.ti.com About This Manual

SPRUFI5 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Ethernet Media AccessController (EMAC) User's Guide This document describes the operation of the ethernet mediaaccess controller interface in the TMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFI7 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Analog to Digital Converter(ADC) User's Guide This document describes the operation of the analog to digital conversion inthe TMS320DM36x Digital Media System-on-Chip (DMSoC).

SPRUFI8 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Key Scan User's Guide Thisdocument describes the key scan peripheral in the TMS320DM36x Digital Media System-on-Chip(DMSoC).

SPRUFI9 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Voice Codec User's Guide Thisdocument describes the voice codec peripheral in the TMS320DM36x Digital MediaSystem-on-Chip (DMSoC). This module can access ADC/DAC data with internal FIFO (ReadFIFO/Write FIFO). The CPU communicates to the voice codec module using 32-bit-wide controlregisters accessible via the internal peripheral bus.

SPRUFJ0 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Power Management andReal-Time Clock Subsystem (PRTCSS) User's Guide This document provides a functionaldescription of the Power Management and Real-Time Clock Subsystem (PRTCSS) in theTMS320DM36x Digital Media System-on-Chip (DMSoC) and PRTC interface (PRTCIF).

SPRUGG8 — TMS320DM36x Digital Media System-on-Chip (DMSoC) Face Detection User's GuideThisdocument describes the face detection capabilities for the TMS320DM36x Digital MediaSystem-on-Chip (DMSoC).

17SPRUGG8A–May 2009–Revised July 2010 Read This First






http://www.ti.com/lit/pdf/SPRUFJ0

http://www.ti.com/lit/pdf/SPRUGG8

User's GuideSPRUGG8A–May 2009–Revised July 2010

Introduction

1 Purpose of the Peripheral

The face detection module provides capabilities to detect multiple faces on the quarter video graphicsarray (QVGA) image/video frame for the TMS320DM36x Video Processing Front End(VPFE).

1.1 Features

The following features are included in this module:

• Supports a high detection rate of close to 100% in most conditions• Allows detection in different directions – up, left and right• Allows detection with rotation in plane (RIP) - Â±45Â°• Allows detection for rotation out of plane (ROP)

– Horizontal (left/right) pan: +/-60Â°– Vertical (up/down) tilt: +/- 30°

• Allows a configurable minimum face size of 20-40 pixels• Allows a configurable region of interest in the input frame• Allows a configurable start position in the input frame• Supports up to 35 face detections in a single frame• Supports interrupt generation to ARM using the video processing subsystem (VPSS) multiplexed

interrupt mechanism• Eliminates the use of skin tone for face detection, resulting in robust performance in low light

conditions, and in night vision, monochromatic, and false color sensing• Supports input size upto QVGA (320 x 240), with the restriction of 192 lines as the actual height used

for face detection.Note: Mandatory input line offset is 320 pixels.

• Includes 8-bit gray scale data as input format

1.2 Functional Block Diagram

The face detection module block diagram is illustrated in Figure 1.

18 Introduction SPRUGG8A–May 2009–Revised July 2010


LUT Read for LSC

DDR2/mDDRController

ParallelInput

Internal Bus

DDR Read Bus

DDR Write Bus

Processing Blocks

Statistic Collection Blocks

Support/Infrastructure Blocks

VPSS

H3A

LDC

RZA

RZBIPIPE

BufferLogic

IPIPEIF

LSC

ISIF

OSD VENC Display

FD

www.ti.com Major Features / Common Architecture

Figure 1. Face Detection Module in VPSS

1.3 Supported Use Case Statement

The face detection module supports QVGA size input image, and detects faces with face inclination +/-45°, face direction +/- 30° in vertical direction and +/- 60° in horizontal direction, with a maximum detectioncount of 35 faces. The output of this module is face size, angle, position of faces, and confidence level inasserting an area as face.

1.4 Industry Standard(s) Compliance Statement

The face detection module does not conform to any recognized industry standards.

2 Major Features / Common Architecture

2.1 Detection Direction, Rotation In Plane, Rotation Out of Plane

The face detection module supports three configurable directions for detection: up, left, and right. Themodule can detect faces in these directions with a tolerance of the rotation-in-plane (RIP) angle. TheDM36x device supports a maximum RIP angle of +/-45 degrees. These directions and angles areexplained in Figure 3.

19SPRUGG8A–May 2009–Revised July 2010 Introduction


Up Direction (0 )°

-45° +45°-4

5°

+45

° -45

°+

45

°

Left Direction (-90 )° Right Direction (+90 )°

Major Features / Common Architecture www.ti.com

Figure 2. Rotation In Plane

The face detection module also supports a rotation-out of-plane (ROP) angle of +/- 60Â° in a horizontaldirection. This is the equivalent of face panning. In a vertical direction, ROP of +/-30Â° is permissible,which is equivalent to face tilting. This is illustrated in Figure 3.



Vertical ( 30 )± °

Horizontal ( 0 )±6 °


Figure 3. Rotation Out of Plane

2.2 Region of Interest

This module supports face detection within a region of interest as specified by the user. Settings for theregion of interest are accomplished by the FD_STARTX, FD_STARTY, and FD_SIZEX registers. Thefollowing conditions must be ensured, or the operation is not guaranteed:• 0≤startx≤160• 0≤starty≤120• startx+sizex≤320• starty+sizey≤240

NOTE: The FD_SIZEY register must always be programmed as 192 only.

Figure 4 shows the dimensions of the region of interest.



Region of Interest 192

320

sizey

sizex

(startx, starty)

(0,0)

240

Face detectionsupports only 192pixels of height.

32bitAddress

0x0000

Input Image Area(12288wordX32bit)

0x4B00

Work Area(13120wordX32bit)

0x7E40


Figure 4. Region of Interest

2.3 External Memory Space

External memory is composed of the input image area and work area. The start addresses of the inputimage area and work area should by 32-bit aligned. The details for each area details are shown inFigure 5.

Figure 5. External Memory Space

The target image for processing must be stored by the system side in the input image area before thestart of processing. The storage format should be 1 word per 4 pixels in order of the coordinates as shownin Figure 6. In this device, the default data output format is the same data format as expected by the facedetection hardware.



Address

FDIF_PICADDR.PICADDR

FDIF_PICADDR.PICADDR + 0 1×

31 0

(3,0) (2,0) (1,0) (0,0)

(4,0)(5,0)(6,0)(7,0)

LSBMSB

7 0


Figure 6. Image Storage Format

2.4 Reset Considerations

Software reset and hardware reset considerations are discussed in the following subsections.

2.4.1 Software Reset Considerations

The following are considerations for software reset:

• At the time of software reset or face detect process completion, the RUN bit from the FD_CTRLregister should be set to 0.

• At the time of software reset, or face detection start request, the FINISH bit from the FD_CTRL registershould be set to 0.

• At the time of the face detect start request, the SRST bit of the FD_CTRL register should be set to 0.• During software reset, the FD_DNUM register will have an initial value of 0.

2.4.2 Hardware Reset Considerations

Hardware reset should be done without fail during system start-up, to bring the system to initializationstate. During hardware reset, the following registers will have initial values:

• FD_CTRL• FD_DNUM• FD_DCOND• FD_STARTX• FD_STARTY• FD_SIZEX• FD_SIZEY• FD_LHIT

Use hardware reset if either of the following cases is apparent:

• If DIR = 0x3 is set in the face detection condition (FD_DCOND ) register, which is an invalid condition.




• If any value set to these registers (STARTX, STARTY, SIZEX, SIZEY in FD_STARTX, FD_STARTY,FD_SIZEX, and FD_SIZEY) exceeds the specified possible range.

• If the value set to FD_LHIT exceeds the specified possible range.

2.5 Initialization

Before setting the RUN bit of the FD_CTRL register to 1, the face detection condition settings must be set,which includes:

• Detection condition setting register (FD_DCOND)• Detection area ( starting X-coordinates ) setting register (FD_STARTX)• Detection area ( starting Y-coordinates ) setting register (FD_STARTY)• Detection area ( X-direction size ) setting register (FD_SIZEX)• Detection area ( Y-direction size ) setting register (FD_SIZEY)

Note: This register must be initialized with 192.• Threshold setting register ( FD_LHIT )

2.6 Interrupt Support

2.6.1 Interrupt Events and Requests

The face detection module generates a detect process finish interrupt which can be enabled by settingFDIF_INTEN register value to 1. This interrupt also must be separately selected before a start-up request,by selecting the FDIF_INT bit from the INTSEL[0-3] fields of VPSS INTSEL[1-3] registers (see). Forexample, if vpss_int[5] is used for face detection, INTSEL1 field of VPSS INTSEL2 register must be set to0x13. For more details on the interrupt settings, see the TMS320DM36x Digital Media System-on-Chip(DMSoC) Video Processing Front End (VPFE) Users Guide (SPRUFG8).

Table 1. VPSS INTSEL1 Register Field Descriptions

Bit Field Value Description

31-29 Reserved Any writes to these bit(s) must always have a value of 0.

28-24 INTSEL3 Selects the interrupt for vpss_int[3]





Table 1. VPSS INTSEL1 Register Field Descriptions (continued)


00 ISIF_INT0

01 ISIF_INT1

02 ISIF_INT2

03 ISIF_INT3

04 IPIPE_INT_REG

05 IPIPE_INT_LAST_PIX

06 IPIPE_INT_DMA

07 IPIPE_INT_BSC

08 IPIPE_INT_HST

09 IPIPEIF_INT

0A AEW_INT

0B AF_INT

0C H3A_INT

0D RSZ_INT_REG

0E RSZ_INT_LAST_PIX

0F RSZ_INT_DMA

10 RSZ_INT_CYC_RZA

11 RSZ_INT_CYC_RZB

12 LDC_INT

13 FDIF_INT

14 OSD_INT

15 VENC_INT

16 RSZ_INT_EOF0

17 RSZ_INT_EOF1

18 H3A_INT_EOF

19 IPIPE_INT_EOF

1A LDC_INT_EOF

1B IPIPE_INT_DPC_INI

1C IPIPE_INT_DPC_RNEW0

1D IPIPE_INT_DPC_RNEW1





7-5 Reserved .Any writes to these bit(s) must always have a value of 0.











00 ISIF_INT0

01 ISIF_INT1

02 ISIF_INT2

03 ISIF_INT3

04 IPIPE_INT_REG


06 IPIPE_INT_DMA

07 IPIPE_INT_BSC

08 IPIPE_INT_HST

09 IPIPEIF_INT

0A AEW_INT

0B AF_INT

0C H3A_INT

0D RSZ_INT_REG

0E RSZ_INT_LAST_PIX

0F RSZ_INT_DMA

10 RSZ_INT_CYC_RZA

11 RSZ_INT_CYC_RZB

12 LDC_INT

13 FDIF_INT

14 OSD_INT

15 VENC_INT

16 RSZ_INT_EOF0

17 RSZ_INT_EOF1

18 H3A_INT_EOF

19 IPIPE_INT_EOF

1A LDC_INT_EOF








7-5 Reserved .Any writes to these bit(s) must always have a value of 0.








www.ti.com SW Configuration



00 ISIF_INT0

01 ISIF_INT1

02 ISIF_INT2

03 ISIF_INT3

04 IPIPE_INT_REG


06 IPIPE_INT_DMA

07 IPIPE_INT_BSC

08 IPIPE_INT_HST

09 IPIPEIF_INT

0A AEW_INT

0B AF_INT

0C H3A_INT

0D RSZ_INT_REG

0E RSZ_INT_LAST_PIX

0F RSZ_INT_DMA

10 RSZ_INT_CYC_RZA

11 RSZ_INT_CYC_RZB

12 LDC_INT

13 FDIF_INT

14 OSD_INT

15 VENC_INT

16 RSZ_INT_EOF0

17 RSZ_INT_EOF1

18 H3A_INT_EOF

19 IPIPE_INT_EOF

1A LDC_INT_EOF




2.7 Power Management

The face detection module does not have a separate power management module and utilizes the powermanagement for the VPFE. For more details on the Power management, see the TMS320DM36x DigitalMedia System-on-Chip (DMSoC) Video Processing Front End (VPFE) Users Guide (SPRUFG8).

2.8 Emulation Considerations

The face detection module does not provide emulation support.

3 SW Configuration

The following configurations are necessary to enable face detection:

• Set face detection interrupt enable in the VPSS INTSEL[1-3] registers• Set interrupt enable in the FD interrupt enable register (FDIF_INTEN)• Set software reset bit to 1 in the FD Control Register (FD_CTRL)• Set input image address in the FD_PICADDR register• Set work area address in the FD_WKADDR register• Set detection threshold in the FD_LHIT register




SW Configuration www.ti.com

• Set detection area setting in the FD_STARTX, FD_STARTY, and FD_SIZEX registers.• Set FD_SIZEY to 192.• Set detection condition (direction) in the FD_DCOND register• Set the Run bit in the FD_CTRL register to 1

NOTE: Mandatory input line offset is 320 pixels.

The pseudo code for face detection is given below:Dotest(){fd_init() ;while(capture) //Do for every frame{fd_exec() ;}}fd_init(){

//Set VPSS FDIF interrupt, refer to the TMS320DM36x Digital Media System-on-Chip (DMSoC)Video Processing Front End (VPFE) Reference Guide .

ISP5.INTSEL1 = 0x13; //Select interrupt for face detection from ISP5 interruptsFDIF_INTEN = 0x1 ; //Enable Face Detect Interrupt Issue

}

fd_exec(){

FDIF_PICADDR = (Uint32)(&input_pic_addr) ;FDIF_WKADDR = (Uint32)(&work_area_addr) ;

//Upright face to be detected, refer section 4.7 of FD_DCONDFD_DCOND = 0x0 ;

FD_STARTX = 0x0 ; //StartxFD_STARTY = 0x0; //StartyFD_SIZEX = 0x140 (equivalent to 320) ; //SizexFD_SIZEY = 0xc0 ; //SizeyFD_LHIT = 0x6 ; //Detection threshold setting

FD_CTRL = 0x1 ; //Set software reset bit of FD_CTRL

//Delayfor(int I=0;i < 4000 ; I++) ;

FD_CTRL = 0x2 ; //Set run bit of FD_CTRL

//Wait for FDIF_INT interrupt here , refer to VPSS TMS320DM36x Digital Media System-on-Chip(DMSoC) Video Processing Front End (VPFE ) Reference Guide (SPRUFG8 )

FD_CTRL = 0x4 ; //Set Finish Bit of FD_CTRL Register

read_results() ;}

read_results(){

Face1_xcenter = FD_CENTERX1 ;Face2_xcenter = FD_CENTERX2 ;....Face35_xcenter = FD_CENTERX35 ;Face1_ycenter = FD_CENTERY1 ;Face2_ycenter = FD_CENTERY2 ;....Face35_ycenter = FD_CENTERX35 ;Face1_confidence_size = FD_CONFSIZE1 ; //First 8 LSBs give face sizeFace2_confidence_size = FD_CONFSIZE2 ; //Next 8 LSBs give Confidence of face detected....Face35_confidence_size = FD_CENTERX35 ;



www.ti.com SW Configuration

}

Dotest() { fd_init() ; while(capture) //Do for every frame { fd_exec() ; } }fd_init() { //Set VPSS FDIF interrupt, refer to the TMS320DM36x Digital Media System-on-Chip

(DMSoC) Video Processing Front End (VPFE) Reference Guide . ISP5.INTSEL1 = 0x13; //Selectinterrupt for face detection from ISP5 interrupts FDIF_INTEN = 0x1 ; //Enable Face DetectInterrupt Issue }fd_exec() { FDIF_PICADDR = (Uint32)(&input_pic_addr) ; FDIF_WKADDR = (Uint32)(&work_area_addr) ;//Upright face to be detected, refer section 4.7 of FD_DCOND FD_DCOND = 0x0 ;FD_STARTX = 0x0 ; //Startx FD_STARTY = 0x0; //Starty FD_SIZEX = 0x140 ; //Sizex FD_SIZEY = 0xf0

; //Sizey FD_LHIT = 0x6 ; //Detection threshold setting FD_CTRL = 0x1 ; //Set software reset bitof FD_CTRL //Delay for(int I=0;i < 4000 ; I++) ; FD_CTRL = 0x2 ; //Set run bit of FD_CTRL //Waitfor FDIF_INT interrupt here , refer to VPSS TMS320DM36x Digital Media System-on-Chip (DMSoC)Video Processing Front End (VPFE ) Reference Guide (SPRUFG8 ) FD_CTRL = 0x4 ; //Set Finish Bit ofFD_CTRL Register read_results() ; }read_results() { Face1_xcenter = FD_CENTERX1 ; Face2_xcenter = FD_CENTERX2 ; .. .. Face35_xcenter= FD_CENTERX35 ; Face1_ycenter = FD_CENTERY1 ; Face2_ycenter = FD_CENTERY2 ; .. .. Face35_ycenter= FD_CENTERX35 ; Face1_confidence_size = FD_CONFSIZE1 ; //First 8 LSBs give face sizeFace2_confidence_size = FD_CONFSIZE2 ; //Next 8 LSBs give Confidence of face detected .. ..Face35_confidence_size = FD_CENTERX35 ; }



Registers www.ti.com

4 Registers

Table 4 lists the memory-mapped registers for the face detection module. See the device-specific datamanual for the memory address of these registers.

Table 4. Face Detection Module Registers

Offset Acronym Register Description Section

0x000 FDIF_PID FDIF PID Section 4.1

0x008 FDIF_INTEN FDIF Interrupt enable Section 4.2

0x00C FDIF_PICADDR FDIF Picture Data address Section 4.3

0x010 FDIF_WKADDR FDIF Work Area address Section 4.4

0x020 FD_CTRL FD Core Control Register Section 4.5

0x024 FD_DNUM Detect number Section 4.6

0x028 FD_DCOND Detect Condition set register Section 4.7

0x02C FD_STARTX X Start address Section 4.8

0x030 FD_STARTY Y Start address Section 4.9

0x034 FD_SIZEX X Size for detection Section 4.10

0x038 FD_SIZEY Y Size for detection Section 4.11

0x03C FD_LHIT Detect process threshold Section 4.12

0x100 FD_CENTERX1 Detect Result Center X Address Section 4.13

0x104 FD_CENTERY1 Detect Result Center Y Address Section 4.14

0x108 FD_CONFSIZE1 Detect Result Confidence/Size Section 4.15

0x10C FD_ANGLE1 Detect Angle Section 4.16































www.ti.com Registers

Table 4. Face Detection Module Registers (continued)










0x1A0 FD_CENTERX11 Detect Result Center X Address Section 4.53

0x1A4 FD_CENTERY11 Detect Result Center Y Address Section 4.54

0x1A8 FD_CONFSIZE11 Detect Result Confidence/Size Section 4.55

0x1AC FD_ANGLE11 Detect Angle Section 4.56

0x1B0 FD_CENTERX12 Detect Result Center X Address Section 4.57

0x1B4 FD_CENTERY12 Detect Result Center Y Address Section 4.58

0x1B8 FD_CONFSIZE12 Detect Result Confidence/Size Section 4.59

0x1BC FD_ANGLE12 Detect Angle Section 4.60

0x1C0 FD_CENTERX13 Detect Result Center X Address Section 4.61

0x1C4 FD_CENTERY13 Detect Result Center Y Address Section 4.62

0x1C8 FD_CONFSIZE13 Detect Result Confidence/Size Section 4.63

0x1CC FD_ANGLE13 Detect Angle Section 4.64

0x1D0 FD_CENTERX14 Detect Result Center X Address Section 4.65

0x1D4 FD_CENTERY14 Detect Result Center Y Address Section 4.66

0x1D8 FD_CONFSIZE14 Detect Result Confidence/Size Section 4.67

0x1DC FD_ANGLE14 Detect Angle Section 4.68

0x1E0 FD_CENTERX15 Detect Result Center X Address Section 4.69

0x1E4 FD_CENTERY15 Detect Result Center Y Address Section 4.70

0x1E8 FD_CONFSIZE15 Detect Result Confidence/Size Section 4.71

0x1EC FD_ANGLE15 Detect Angle Section 4.72

0x1F0 FD_CENTERX16 Detect Result Center X Address Section 4.73

0x1F4 FD_CENTERY16 Detect Result Center Y Address Section 4.74

0x1F8 FD_CONFSIZE16 Detect Result Confidence/Size Section 4.75

0x1FC FD_ANGLE16 Detect Angle Section 4.76














































0x2A0 FD_CENTERX27 Detect Result Center X Address Section 4.117

0x2A4 FD_CENTERY27 Detect Result Center Y Address Section 4.118

0x2A8 FD_CONFSIZE27 Detect Result Confidence/Size Section 4.119

0x2AC FD_ANGLE27 Detect Angle Section 4.120

0x2B0 FD_CENTERX28 Detect Result Center X Address Section 4.121

0x2B4 FD_CENTERY28 Detect Result Center Y Address Section 4.122

0x2B8 FD_CONFSIZE28 Detect Result Confidence/Size Section 4.123

0x2BC FD_ANGLE28 Detect Angle Section 4.124

0x2C0 FD_CENTERX29 Detect Result Center X Address Section 4.125

0x2C4 FD_CENTERY29 Detect Result Center Y Address Section 4.126

0x2C8 FD_CONFSIZE29 Detect Result Confidence/Size Section 4.127

0x2CC FD_ANGLE29 Detect Angle Section 4.128

0x2D0 FD_CENTERX30 Detect Result Center X Address Section 4.129

0x2D4 FD_CENTERY30 Detect Result Center Y Address Section 4.130

0x2D8 FD_CONFSIZE30 Detect Result Confidence/Size Section 4.131

0x2DC FD_ANGLE30 Detect Angle Section 4.132

0x2E0 FD_CENTERX31 Detect Result Center X Address Section 4.133

0x2E4 FD_CENTERY31 Detect Result Center Y Address Section 4.134

0x2E8 FD_CONFSIZE31 Detect Result Confidence/Size Section 4.135

0x2EC FD_ANGLE31 Detect Angle Section 4.136

0x2F0 FD_CENTERX32 Detect Result Center X Address Section 4.137

0x2F4 FD_CENTERY32 Detect Result Center Y Address Section 4.138






0x2F8 FD_CONFSIZE32 Detect Result Confidence/Size Section 4.139

0x2FC FD_ANGLE32 Detect Angle Section 4.140
















4.1 FDIF_PID Register

The FDIF_PID register is shown in Figure 7 and described in Table 5.

Figure 7. FDIF_PID Register31 16

Reserved

R-0

15 8 7 0

Reserved PID

R-0 R-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 5. FDIF_PID Field Descriptions



7-0 PID PID




4.2 FDIF Interrupt Enable (FDIF_INTEN) Register

The FDIF interrupt enable (FDIF_INTEN) register is shown in Figure 8 and described in Table 6.

Figure 8. FDIF Interrupt Enable (FDIF_INTEN) Register31 16

Reserved

R-0

15 1 0

Reserved FINISH

R-0 R/W-0


Table 6. FDIF Interrupt Enable (FDIF_INTEN) Field Descriptions



0 FINISH Interrupt enable for detect process finish.




4.3 FDIF Picture Data Address (FDIF_PICADDR) Register

The FDIF picture data address (FDIF_PICADDR) register is shown in Figure 9 and described in Table 7.

Figure 9. FDIF Picture Data Address (FDIF_PICADDR) Register31 16

PICADDR

R/W-0

15 5 4 0

PICADDR Reserved

R/W-0 R-0


Table 7. FDIF Picture Data Address (FDIF_PICADDR) Field Descriptions


31-5 PICADDR Picture Data Store Address





4.4 FDIF Work Area Address (FDIF_WKADDR) Register

The FDIF work area address (FDIF_WKADDR) register is shown in Figure 10 and described in Table 8.

Figure 10. FDIF Work Area Address (FDIF_WKADDR) Register31 16

WKADDR

R/W-0

15 5 4 0

WKADDR Reserved

R/W-0 R-0


Table 8. FDIF Work Area Address (FDIF_WKADDR) Field Descriptions


31-5 WKADDR Work area address





4.5 FD Core Control (FD_CTRL) Register

The FD core control (FD_CTRL) register is shown in Figure 11 and described in Table 9.

Figure 11. FD Core Control (FD_CTRL) Register31 16

Reserved

R/C-0

15 3 2 1 0

Reserved FINIS RUN SRSTH

R-0 R/W-0 R/W-0 R/W-0


Table 9. FD Core Control (FD_CTRL) Field Descriptions



2 FINISH Process finish flag. Write 1 to clear this flag. Do not write 1 when this bit=0.

1 RUN Process Start request. Do not write 1 when this field =1.

0 SRST FD Core soft reset. Write 1 to reset.




4.6 Face Detect Number (FD_DNUM) Register

The face detect number (FD_DNUM) register is shown in Figure 12 and described in Table 10.

Figure 12. FD Detect Number (FD_DNUM) Register31 16

Reserved

R/C-0

15 6 5 0

Reserved DNUM

R-0 R-0


Table 10. Face Detect Number (FD_DNUM) Field Descriptions



5-0 DNUM Detection result number




4.7 Detect Condition Set (FD_DCOND) Register

The detect condition set (FD_DCOND) register is shown in Figure 13 and described in Table 11.

Figure 13. Detect Condition Set (FD_DCOND) Register31 16

Reserved

R/C-0

15 4 3 2 1 0

Reserved DIR MIN

R-0 R/W-0 R/W-0


Table 11. Detect Condition Set (FD_DCOND) Field Descriptions



3-2 DIR Set detect direction

00 For up direction

01 For right side

10 For left side

11 Not used

1-0 MIN Set detect minimum size

00 Min 20×20 pixel

01 Min 25×25 pixel

10 Min 32×32 pixel

11 Min 40×40 pixel




4.8 X Start Address (FD_STARTX) Register

The x start address (FD_STARTX) register is shown in Figure 14 and described in Table 12.

Figure 14. X Start Address (FD_STARTX) Register31 16

Reserved

R/W-0

15 8 7 0

Reserved STARTX

R-0 R/W-0


Table 12. X Start Address (FD_STARTX) Field Descriptions



7-0 STARTX X Start Address. This field should be set within 0≤STARTX≤160, and needs to be set at least 1clock cycle before process starts.




4.9 Y Start Address (FD_STARTY) Register

The Y start address (FD_STARTY) register is shown in Figure 15 and described in Table 13.

Figure 15. Y Start Address (FD_STARTY) Register31 16

Reserved

R/W-0

15 7 6 0

Reserved STARTY

R-0 R/W-0


Table 13. Y Start Address (FD_STARTY) Field Descriptions



6-0 STARTY Y Start Address. This field should be 0≤STARTY≤120, and needs to be set at least 1 clock cyclebefore process starts.




4.10 X Size for Detection (FD_SIZEX) Register

The X size for detection (FD_SIZEX) register is shown in Figure 16 and described in Table 14.

Figure 16. X Size for Detection (FD_SIZEX) Register31 16

Reserved

R/W-0

15 9 8 0

Reserved SIZEX

R-0 R/W-0


Table 14. X Size for Detection (FD_SIZEX) Field Descriptions



8-0 SIZEX X size for detect process. This field should be set with STARTX+SIZEX≤320, and needs to be setat least 1 clock cycle before process starts.




4.11 Y Size for Detection (FD_SIZEY) Register

The Y size for detection (FD_SIZEY) register is shown in Figure 17 and described in Table 15.

Figure 17. Y Size for Detection (FD_SIZEY) Register31 16

Reserved

R/W-0

15 8 7 0

Reserved SIZEY

R-0 R/W-0


Table 15. Y Size for Detection (FD_SIZEY) Field Descriptions



7-0 SIZEY Y size for detect process. This field should be set with STARTY+SIZEY≤240, and needs to be setat least 1 clock cycle before process start.




4.12 Detect Process Threshold (FD_LHIT) Register

The detect process threshold (FD_LHIT) register is shown in Figure 18 and described in Table 16.

Figure 18. Detect Process Threshold (FD_LHIT) Register31 16

Reserved

R/W-0

15 4 3 0

Reserved LHIT

R-0 R/W-0


Table 16. Detect Process Threshold (FD_LHIT) Field Descriptions



3-0 LHIT Detect process threshold. This field should be set with 0≤LHIT≤9, and need to set at least 1 clockcycle before process start. Possibility of detecting face goes higher with setting a lower value to thisregister.




4.13 Detect Result Center X Address (FD_CENTERX1) Register

The detect result center x address (FD_CENTERX1) register is shown in Figure 19 and described inTable 17 .

Figure 19. Detect Result Center X Address (FD_CENTERX1) Register31 16

Reserved

R/W-0

15 9 8 0

Reserved CENTERX1

R-0 R-0


Table 17. Detect Result Center X Address (FD_CENTERX1) Field Descriptions



8-0 CENTERX1 Detect Result : Center X address




4.14 Detect Result Center Y Address (FD_CENTERY1) Register

The detect result center Y address (FD_CENTERY1) register is shown in Figure 20 and described inTable 18.

Figure 20. Detect Result Center Y Address (FD_CENTERY1) Register31 16

Reserved

R/W-0

15 8 7 0

Reserved CENTERY1

R-0 R-0


Table 18. Detect Result Center Y Address (FD_CENTERY1) Field Descriptions



7-0 CENTERY1 Detect Result : Center Y address




4.15 Detect Result Confidence/Size (FD_CONFSIZE1) Register

The detect result confidence/size (FD_CONFSIZE1) register is shown in Figure 21 and described inTable 19.

Figure 21. Detect Result Confidence/Size (FD_CONFSIZE1) Register31 16

Reserved

R/W-0

15 12 11 8 7 0

Reserved CONF1 SIZE1

R-0 R-0 R-0


Table 19. Detect Result Confidence/Size (FD_CONFSIZE1) Field Descriptions



11-8 CONF1 Detect Result : Confidence. Higher value indicates lower confidence in asserting face.

7-0 SIZE1 Detect Result : Face size (Min=20, Max=240)




4.16 Detect Angle (FD_ANGLE1) Register

The detect angle (FD_ANGLE1) register is shown in Figure 22 and described in Table 20.

Figure 22. Detect Angle (FD_ANGLE1) Register31 16

Reserved

R/W-0

15 9 8 0

Reserved ANGLE1

R-0 R-0


Table 20. Detect Angle (FD_ANGLE1) Field Descriptions



8-0 ANGLE1 Detect Result : Angle





The detect result center X address (FD_CENTERX2) register is shown in Figure 23 and described inTable 21.


Reserved

R/W-0

15 9 8 0

Reserved CENTERX2

R-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY2

R-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R-0 R-0 R-0





11-8 CONF2 Detect Result : Confidence








Reserved

R/W-0

15 9 8 0

Reserved ANGLE2

R-0 R-0


Table 24. Detect Angle Register (FD_ANGLE2) Field Descriptions










Reserved

R/W-0

15 9 8 0

Reserved CENTERX3

R-0 R-0










The detect result center Y address (FD_CENTERY3) register is shown in Figure 28and described inTable 26.


Reserved

R/W-0

15 8 7 0

Reserved CENTERY3

R-0 R-0










The detect result confidence/size (FD_CONFSIZE3) register is shown in Figure 29and described inTable 27.


Reserved

R/W-0

15 12 11 8 7 0


R-0 R-0 R-0











The detect angle (FD_ANGLE3) register is shown in Figure 30 and described in Table 28


Reserved

R/W-0

15 9 8 0

Reserved ANGLE3

R-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX4

R-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY4

R-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE4

R-0 R-0










The detect result center X address register is shown in Figure 35 and described in Table 33.


Reserved

R/W-0

15 9 8 0

Reserved CENTERX5

R-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY5

R-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE5

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX6

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY6

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE6

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX7

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY7

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE7

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX8

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY8

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0












Figure 50. Detect Angle(FD_ANGLE8) Register31 16

Reserved

R/W-0

15 9 8 0

Reserved ANGLE8

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX9

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY9

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0










4.48 Detect Angle(FD_ANGLE9) Register



Reserved

R/W-0

15 9 8 0

Reserved ANGLE9

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX10

R/W-0 R-0









4.50 Detect Result Center Y Address(FD_CENTERY10) Register



Reserved

R/W-0

15 8 7 0

Reserved CENTERY10

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE10

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX11

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY11

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE11

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX12

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY12

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0












Figure 66. Detect Angle(FD_ANGLE12) Register31 16

Reserved

R/W-0

15 9 8 0

Reserved ANGLE12

R/W-0 R-0









4.61 Detect Result Center X Address(FD_CENTERX13) Register



Reserved

R/W-0

15 9 8 0

Reserved CENTERX13

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY13

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE13

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX14

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY14

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE14

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX15

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY15

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE15

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX16

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY16

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0











The detect angle(FD_ANGLE16) register is shown in Figure 82 and described in Table 80.


Reserved

R/W-0

15 9 8 0

Reserved ANGLE16

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX17

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY17

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE17

R/W-0 R-0










The detect result center X address(FD_CENTERX18) register is shown in Figure 87 and described inTable 85.


Reserved

R/W-0

15 9 8 0

Reserved CENTERX18

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY18

R/W-0 R-0









4.83 Detect Result Confidence/Size(FD_CONFSIZE18) Register

The detect result confidence/size(FD_CONFSIZE18) register is shown in Figure 89 and described inTable 87.


Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0











The detect angle(FD_ANGLE18) register is shown in Figure 90 and described in Table 88.


Reserved

R/W-0

15 9 8 0

Reserved ANGLE18

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX19

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY19

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE19

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX20

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY20

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE20

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX21

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY21

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE21

R/W-0 R-0


Table 100. Detect Angle (FD_ANGLE21) Field Description










Reserved

R/W-0

15 9 8 0

Reserved CENTERX22

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY22

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE22

R/W-0 R-0










The register is shown in Figure 107 and described in Table 105.


Reserved

R/W-0

15 9 8 0

Reserved CENTERX23

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY23

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0


Table 107. Detect Result Confidence/Size (FD_CONFSIZE23) Field Description











Reserved

R/W-0

15 9 8 0

Reserved ANGLE23

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX24

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY24

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE24

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX25

R/W-0 R-0










The detect result center Y address(FD_CENTERY25) register is shown in Figure 116 and described inTable 114.


Reserved

R/W-0

15 8 7 0

Reserved CENTERY25

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE25

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX26

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY26

R/W-0 R-0









4.115 Detect Result Confidence/Size(FD_CONFSIZE26) Register

The detect result confidence/size(FD_CONFSIZE26) register is shown in Figure 121 and described inTable 119.


Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE26

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX27

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY27

R/W-0 R-0










The detect result confidence/size (FD_CONFSIZE27) register is shown in Figure 125 and described inFigure 125.


Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE27

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX28

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY28

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE28

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX29

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY29

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE29

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX30

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY30

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE30

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX31

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY31

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE31

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX32

R/W-0 R-0










The detect result center Y address (FD_CENTERY32) register is shown in Figure 144 and described inTable 142 .


Reserved

R/W-0

15 8 7 0

Reserved CENTERY32

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE32

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX33

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY33

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE33

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX34

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY34

R/W-0 R-0









4.147 Detect Result Confidence/Size Register (FD_CONFSIZE34)



Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE34

R/W-0 R-0












Reserved

R/W-0

15 9 8 0

Reserved CENTERX35

R/W-0 R-0












Reserved

R/W-0

15 8 7 0

Reserved CENTERY35

R/W-0 R-0












Reserved

R/W-0

15 12 11 8 7 0


R/W-0 R-0 R-0













Reserved

R/W-0

15 9 8 0

Reserved ANGLE35

R/W-0 R-0








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Appendix A Revision History

This document has been revised from SPRUGG8 to SPRUGG89A because of the following technicalchange(s).

Table 157. Revisions

Location Additions, Deletes, and Edits

Section 1.1 Updated list and added note.

Section 2.2 Updated section and added note.

Figure 4 Updated figure.

Figure 5 Replaced 19200 with 12288.

Section 2.5 Added note to bullet.

Section 3 Added note and updated code.

186 Revision History SPRUGG8A–May 2009–Revised July 2010


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