Datasheet

MAX7370
8 x 8 Key-Switch Controller and LED Driver/GPIOs
with I2C Interface and High Level of ESD Protection
28Maxim Integrated
Table 21. GPIO Values 1 Register (0x3A)
Table 22. GPIO Values 2 Register (0x3B)
*Open-drain output, pullup resistor required.
REGISTER BIT DESCRIPTION VALUE FUNCTION DEFAULT VALUE
D7 ROW7
0 Clear ROW7 low
1
1 Set ROW7 high
D6 ROW6
0 Clear ROW6 low
1
1 Set ROW6 high
D5 ROW5
0 Clear ROW5 low
1
1 Set ROW5 high
D4 ROW4
0 Clear ROW4 low
1
1 Set ROW4 high
D3 ROW3
0 Clear ROW3 low
1
1 Set ROW3 high
D2 ROW2
0 Clear ROW2 low
1
1 Set ROW2 high
D1 ROW1
0 Clear ROW1 low
1
1 Set ROW1 high
D0 ROW0
0 Clear ROW0 low
1
1 Set ROW0 high
REGISTER BIT DESCRIPTION VALUE FUNCTION DEFAULT VALUE
D7 COL7
0 Clear COL7 low
1
1 Set COL7 high*
D6 COL6
0 Clear COL6 low
1
1 Set COL6 high*
D5 COL5
0 Clear COL5 low
1
1 Set COL5 high*
D4 COL4
0 Clear COL4 low
1
1 Set COL4 high*
D3 COL3
0 Clear COL3 low
1
1 Set COL3 high
D2 COL2
0 Clear COL2 low
1
1 Set COL2 high
D1 COL1
0 Clear COL1 low
1
1 Set COL1 high
D0 COL0
0 Clear COL0 low
1
1 Set COL0 high