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STMPE811 数据表(PDF) 27 Page - STMicroelectronics

部件名 STMPE811
功能描述  8-bit port expander with advanced touchscreen controller
PDF  54 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STMPE811 数据表(HTML) 27 Page - STMicroelectronics

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STMPE811
Analog-to-digital converter
27/54
ADC_CTRL2
ADC control 2
Address:
0x21
Type:
R/W
Reset:
0x01
Description:
ADC control.
ADC_CAPT
ADC channel data capture
Address:
0x22
Type:
R/W
Reset:
0xFF
Description:
To initiate ADC data acquisition
7654
3
2
1
0
RESERVED
ADC_FREQ_1
ADC_FREQ_0
[7] RESERVED
[6] RESERVED
[5] RESERVED
[4] RESERVED
[3] RESERVED
[2] RESERVED
[1:0] ADC_FREQ: Selects the clock speed of ADC
00: 1.625 MHz typ.
01: 3.25 MHz typ.
10: 6.5 MHz typ.
11: 6.5 MHz typ.
7654
3
2
1
0
CH[7:0]
[7:0] CH[7:0]: ADC channel data capture
Write '1' to initiate data acquisition for the corresponding channel. Writing '0' has no effect.
Reads '1' if conversion is completed. Reads '0' if conversion is in progress.



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