STMPE811_09 datasheet(42/64 Pages) STMICROELECTRONICS

No. de pieza	STMPE811

Descripción Electrónicos	Advanced resistive touch screen controller with 8-bit GPIO expander

PDF	64 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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42 / 64 page

Touch screen controller

STMPE811

42/64

Doc ID 14489 Rev 2

TSC_DATA_XYZ

Touch screen controller DATA

Address:

0x57 (auto-increment), 0xD7 (non-auto-increment)

Type:

Reset:

0x00

Description:

Data port for TSC data access

The data format from the TSC_DATA register depends on the setting of "OpMode" field in

TSC_CTRL register. The samples acquired are accessed in "packed samples". The size of

each "packed sample" depends on which mode the touch screen controller is operating in.

The TSC_DATA register can be accessed in 2 modes:

●

Autoincrement

●

Non autoincrement

To access the 128-sets buffer, the non autoincrement mode should be used.

543

DATA

[11:0] DATA: data bytes from TSC FIFO

Table 16.

Touch screen controller DATA register

TSC_CTRL in

operation

mode

Number of

bytes to read

from

TSC_DATA_XYZ

Byte0

Byte1

Byte2

Byte3

000

[11:4] of X

[3:0] of X

[11:8] of Y

[7:0] of Y

[7:0] of Z

001

[11:4] of X

[3:0] of X

[11:8] of Y

[7:0] of Y

−

010

[11:4] of X

[3:0] of X

−−

011

[11:4] of Y

[3:0] of Y

−−

100

[7:0] of Z

−−

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