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STMPE1801 Datasheet(PDF) 40 Page - STMicroelectronics

No. de pieza STMPE1801
Descripción Electrónicos  Xpander Logic™ 18-bit enhanced port expander with keypad controller
PDF  60 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE1801 Datasheet(HTML) 40 Page - STMicroelectronics

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Keypad controller
STMPE1801
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Doc ID 17884 Rev 3
11.2
Keypad controller registers
The mapping between the keypad controller (rows and columns) and the GPIO is based on
Section 2.3.
Table 14.
Keypad controller registers
Address
Register name
Description
Auto-increment
(during sequential R/W)
30
KPC_ROW
Keypad row register
Yes
31
KPC_COL_LOW
Keypad column register
Yes
32
KPC_COL_HIGH
Yes
33
KPC_CTRL_LOW
Keypad control register
Yes
34
KPC_CTRL_MID
Yes
35
KPC_CTRL_HIGH
Yes
36
KPC_CMD
Key command register
Yes
37
KPC_COMBI_KEY_0
Keypad combination key mask 0
Yes
38
KPC_COMBI_KEY_1
Keypad combination key mask 1
Yes
39
KPC_COMBI_KEY_2
Keypad combination key mask 2
Yes
3A
KPC_DATA_BYTE0
Keypad data register
Yes
3B
KPC_DATA_BYTE1
Yes
3C
KPC_DATA_BYTE2
Yes
3D
KPC_DATA_BYTE3
Yes
3E
KPC_DATA_BYTE4
Yes



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