TCA8418E_15 Datasheet, PDF (27/50 Pages) Texas Instruments – I2C Controlled Keypad Scan IC With Integrated ESD Protection

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ADDRESS
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
REGISTER NAME
GPIO_DAT_OUT1
GPIO_DAT_OUT2
GPIO_DAT_OUT3
GPIO_INT_EN1
GPIO_INT_EN2
GPIO_INT_EN3
KP_GPIO1
KP_GPIO2
KP_GPIO3
GPI_EM1
GPI_EM2
GPI_EM3
GPIO_DIR1
GPIO_DIR2
GPIO_DIR3
GPIO_INT_LVL1
Table 9. Register Descriptions (continued)
REGISTER
DESCRIPTION
GPIO data out
GPIO data out
GPIO data out
GPIO interrupt enable
GPIO interrupt enable
GPIO interrupt enable
Keypad or GPIO selection
0: GPIO
1: KP matrix
Keypad or GPIO selection
0: GPIO
1: KP matrix
Keypad or GPIO selection
0: GPIO
1: KP matrix
GPI event mode 1
GPI event mode 2
GPI event mode 3
GPIO data direction
0: input
1: output
GPIO data direction
0: input
1: output
GPIO data direction
0: input
1: output
GPIO edge/level detect
0: falling/low
1: rising/high
7
R7DO
0
C7DO
0
N/A
0
R7IE
0
C7IE
0
N/A
0
ROW7
0
COL7
0
N/A
0
ROW7
0
COL7
0
N/A
0
R7DD
0
C7DD
0
N/A
0
R7IL
0
6
R6DO
0
C6DO
0
N/A
0
R6IE
0
C6IE
0
N/A
0
ROW6
0
COL6
0
N/A
0
ROW6
0
COL6
0
N/A
0
R6DD
0
C6DD
0
N/A
0
R6IL
0
5
R5DO
0
C5DO
0
N/A
0
R5IE
0
C5IE
0
N/A
0
ROW5
0
COL5
0
N/A
0
ROW5
0
COL5
0
N/A
0
R5DD
0
C5DD
0
N/A
0
R5IL
0
Copyright © 2010–2015, Texas Instruments Incorporated
Product Folder Links: TCA8418E
4
R4DO
0
C4DO
0
N/A
0
R4IE
0
C4IE
0
N/A
0
ROW4
0
COL4
0
N/A
0
ROW4
0
COL4
0
N/A
0
R4DD
0
C4DD
0
N/A
0
R4IL
0
TCA8418E
SCPS222C – MAY 2010 – REVISED OCTOBER 2015
3
R3DO
0
C3DO
0
N/A
0
R3IE
0
C3IE
0
N/A
0
ROW3
0
2
R2DO
0
C2DO
0
N/A
0
R2IE
0
C2IE
0
N/A
0
ROW2
0
1
R1DO
0
C1DO
0
C9DO
0
R1IE
0
C1IE
0
C9IE
0
ROW1
0
COL3
0
COL2
0
COL1
0
N/A
0
ROW3
0
COL3
0
N/A
0
R3DD
0
N/A
0
ROW2
0
COL2
0
N/A
0
R2DD
0
COL9
0
ROW1
0
COL1
0
COL9
0
R1DD
0
C3DD
0
C2DD
0
C1DD
0
N/A
N/A
C9DD
0
0
0
R3IL
0
R2IL
0
R1IL
0
0
R0DO
0
C0DO
0
C8DO
0
R0IE
0
C0IE
0
C8IE
0
ROW0
0
COL0
0
COL8
0
ROW0
0
COL0
0
COL8
0
R0DD
0
C0DD
0
C8DD
0
R0IL
0
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