MAX7370_12 Datasheet, PDF (26/37 Pages) Maxim Integrated Products – 8 x 8 Key-Switch Controller and LED Driver/GPIOs

MAX7370
8 x 8 Key-Switch Controller and LED Driver/GPIOs
with I²C Interface and High Level of ESD Protection
Table 17. GPO Output Mode 1 Register (0x36)
REGISTER BIT
D7
D6
D5
D4
D3
D2
D1
D0
DESCRIPTION
ROW7
ROW6
ROW5
ROW4
ROW3
ROW2
ROW1
ROW0
VALUE
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
FUNCTION
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
Port is an open-drain output
Port is a push-pull output
DEFAULT VALUE
1
1
1
1
1
1
1
1
Table 18. GPO Output Mode 2 Register (0x37)
REGISTER BIT
DESCRIPTION
VALUE
FUNCTION
D7
COL7
0
Port is an open-drain output
D6
COL6
0
Port is an open-drain output
D5
COL5
0
Port is an open-drain output
D4
COL4
0
Port is an open-drain output
0
Port is an open-drain output
D3
COL3
1
Port is a push-pull output
0
Port is an open-drain output
D2
COL2
1
Port is a push-pull output
0
Port is an open-drain output
D1
COL1
1
Port is a push-pull output
0
Port is an open-drain output
D0
COL0
1
Port is a push-pull output
Note: When programmed as GPO, COL7–COL4 are always open drain and bits D[7:4] are not writable.
DEFAULT VALUE
0
0
0
0
1
1
1
1
���������������������������������������������������������������� Maxim Integrated Products  26