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STMPE812ABJR Datasheet(PDF) 20 Page - STMicroelectronics

Part # STMPE812ABJR
Description  Integrated 4-wire resistive touchscreen controller, pen-down/real-time mode, fullyautonomous
PDF  53 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE812ABJR Datasheet(HTML) 20 Page - STMicroelectronics

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System and identification registers
STMPE812A
20/53
Doc ID 18225 Rev 4
PORT_FUNCTION
Port function control register
Address:
0x04
Type:
R/W
Reset:
0xF8
Description:
Port function control register.
Port function:
'00' - GPIO input
'01' - GPIO output
'10' - ADC input (P1 only)
'11' - Special function
Special function for:
P0 - NONE
P1 - PWM
P2 - INT output
SCRATCH_PAD
Scratch pad register
Address:
0x06 - 07
Type:
R/W
Reset:
0x00
Description:
General purpose scratch pad register. Could be used for testing of serial interface
reliability.
7654
3
2
1
0
PORT 2 FUNCTION
RESERVED
PORT 1 FUNCTION
PORT 0 FUNCTION
1111
1
0
0
0
[7:6] PORT 2 FUNCTION
[5:4] RESERVED
[3:2] PORT 1 FUNCTION
[1:0] PORT 0 FUNCTION
7654
3
2
1
0
SCRATCHPAD
0000
0
0
0
0
[15:0] SCRATCHPAD



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