STMPE811 datasheet(30/66 Pages) STMICROELECTRONICS

部件名	STMPE811

功能描述	S-Touch® advanced resistive touchscreen controller with 8-bit GPIO expander

PDF	66 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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30 / 66 page

Analog-to-digital converter

STMPE811

30/66

Doc ID 14489 Rev 5

Analog-to-digital converter

An 8-input,12-bit analog-to-digital converter (ADC) is integrated in the STMPE811. The ADC

can be used as a generic analog-to-digital converter, or as a touchscreen controller capable

of controlling a 4-wire resistive touchscreen.

Table 13.

ADC controller register summary table

Address

Size

Description

0x20

ADC_CTRL1

ADC control

0x21

ADC_CTRL2

ADC control

0x22

ADC_CAPT

ADC channel data capture

0x30

ADC_DATA_CH0

ADC channel 0 (X+/GPIO-4)

0x32

ADC_DATA_CH1

ADC channel 1 (X-/GPIO-6)

0x34

ADC_DATA_CH2

ADC channel 2 (Y+/GPIO-5)

0x36

ADC_DATA_CH3

ADC channel 3 (Y-/GPIO-7)

0x38

ADC_DATA_CH4

ADC channel 4 (IN0/GPIO0)

0x3A

ADC_DATA_CH5

ADC channel 5 (IN1/GPIO-1)

0x3C

ADC_DATA_CH6

ADC channel 6 (IN2/GPIO-2)

0x3E

ADC_DATA_CH7

ADC channel 7 (IN3/GPIO-3)

STMPE811 数据表(PDF) 30 Page - STMicroelectronics

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