STMPE1601 STMicroelectronics, STMPE1601 Datasheet - Page 47

• Manufacturer Part Number: STMPE1601
• Description: 16-bit Enhanced Port Expander With Keypad And Pwm Controller Xpander Logic
• Manufacturer: STMicroelectronics

STMPE1601
KPC_ROW_lsb
Address:
Type:
Reset:
Description:
KPC_CTRL_msb
Address:
Type:
Reset:
Description:
R/W
RW
7
0
7
0
[7:0] OUTPUT ROW 0 ~ 7:
[7:4] SCAN_COUNT_0~ 3:
[3] DKEY_3:
[2] DKEY_2:
[1] DKEY_1:
[0] DKEY_0:
SCAN_COUNT_0 ~ 3
R/W
0x62
0x00
Keypad row scanning register.
‘1’ to turn on scanning of the corresponding row;
‘0’ to turn off
0x63
R/W
0x00
Keypad control register.
Number of key scanning cycles elapsed before a confirmed key data is updated into output
data FIFO (0 ~ 15 cycles)
Set ‘1’ to use input column 3 as dedicated key
Set ‘1’ to use input column 2 as dedicated key
Set ‘1’ to use input column 1 as dedicated key
Set ‘1’ to use input column 0 as dedicated key
RW
6
0
6
0
R/W
RW
5
0
5
0
Keypad controller row (LSB)
Keypad controller control (MSB)
OUTPUT ROW 0 ~ 7
R/W
RW
4
0
4
0
R/W
RW
3
0
3
0
R/W
RW
2
0
2
0
DKEYy_0 ~ 3
R/W
RW
1
0
1
0
Keypad controller
R/W
RW
0
0
0
0
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