BT817Q-R datasheet(42/59 Pages) BRIDGETEK

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BT817/8 Advanced Embedded Video Engine Datasheet

Version 1.1

Document No.: BRT_000302 Clearance No.: BRT#154

Address

(hex)

Bit

Reset

value

Description

3020FCh

REG_CMD_WRITE

12 r/o

0 Command buffer write pointer

302100h

REG_CMD_DL

13 r/w

0 Command display list offset

302104h

REG_TOUCH_MODE

2 r/w

3 Touch-screen sampling mode

302108h

REG_TOUCH_ADC_MODE

REG_CTOUCH_EXTENDED

1 r/w

1 Set Touch ADC mode

Set capacitive touch operation

mode:

0: extended mode (multi-touch)

1: FT800 compatibility mode

(single touch).

30210Ch

REG_TOUCH_CHARGE

REG_EHOST_TOUCH_X

16 r/w

9000 Touch charge time, units of 6

clocks

Touch host mode: touch x value

updated by host

302110h

REG_TOUCH_SETTLE

4 r/w

3 Touch settle time, units of 6

clocks

302114h

REG_TOUCH_OVERSAMPL

REG_EHOST_TOUCH_ID

4 r/w

7 Touch oversample factor

Touch host mode: touch ID, 0-4

302118h

REG_TOUCH_RZTHRESH

REG_EHOST_TOUCH_Y

16 r/w

FFFFh Touch resistance threshold

Touch host mode: touch x value

updated by host

30211Ch

REG_TOUCH_

RAW_XY

REG_CTOUCH_TOUCH1_X

32 r/o

- Compatibility mode: touch-screen

raw (x-MSB16; y-LSB16)

Extended mode: touch-screen

screen data for touch 1 (x-

MSB16; y-LSB16)

302120h

REG_TOUCH_RZ

REG_CTOUCH_TOUCH4_Y

16 r/o

Compatibility mode: touch-

screen resistance

Extended mode: touch-screen

screen Y data for touch 4

302124h

REG_TOUCH_

SCREEN_XY

REG_CTOUCH_TOUCH0_X

32 r/o

- Compatibility mode: touch-screen

screen (x-MSB16; y-LSB16)

Extended mode: touch-screen

screen data for touch 0 (x-

MSB16; y-LSB16)

302128h

REG_TOUCH_

TAG_XY

32 r/o

- Touch-screen screen (x-MSB16;

y-LSB16) used for tag 0 lookup

30212Ch

REG_TOUCH_TAG

8 r/o

- Touch-screen tag result 0

302130h

REG_TOUCH_

TAG1_XY

32 r/o

- Touch-screen screen (x-MSB16;

y-LSB16) used for tag 1 lookup

302134h

REG_TOUCH_TAG1

8 r/o

- Touch-screen tag result 1

302138h

REG_TOUCH_

TAG2_XY

32 r/o

- Touch-screen screen (x-MSB16;

y-LSB16) used for tag 2 lookup

30213Ch

REG_TOUCH_TAG2

8 r/o

- Touch-screen tag result 2

302140h

REG_TOUCH_

TAG3_XY

32 r/o

- Touch-screen screen (x-MSB16;

y-LSB16) used for tag 3 lookup

302144h

REG_TOUCH_TAG3

8 r/o

- Touch-screen tag result 3

302148h

REG_TOUCH_

TAG4_XY

32 r/o

- Touch-screen screen (x-MSB16;

y-LSB16) used for tag 4 lookup

30214Ch

REG_TOUCH_TAG4

8 r/o

- Touch-screen tag result 4

302150h

REG_TOUCH_TRANSFORM

32 r/w

00010000h Touch-screen transform

coefficient (s15.16)

302154h

REG_TOUCH_TRANSFORM

32 r/w

00000000h Touch-screen transform

coefficient (s15.16)

302158h

REG_TOUCH_TRANSFORM

32 r/w

00000000h Touch-screen transform

coefficient (s15.16)

30215Ch

REG_TOUCH_TRANSFORM

32 r/w

00000000h Touch-screen transform

coefficient (s15.16)

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