MAX7370 Maxim, MAX7370 Datasheet - Page 28

• Manufacturer Part Number: MAX7370
• Description: The MAX7370 I²C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with optional GPIO and PWM-controlled LED drivers
• Manufacturer: Maxim

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