Datasheet

*INT is automatically cleared after it is read.
Table 10. Transition Detection Mask Register
Table 9. Transition Detection Control (M Data Bit D7) Format
Table 8. Shutdown Control (S Data Bit D0) Format
Table 7. Configuration Register Format
FUNCTION
REGISTER
ADDRESS
(HEX)
READ/
WRITE
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
Mask
Register
0x06
Read INT Status*
Port
30
mask
Port
29
mask
Port
28
mask
Port
27
mask
Port
26
mask
Port
25
mask
Port
24
mask
Write Unchanged
FUNCTION
ADDRESS CODE
(HEX)
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
Disabled 0x04 0 0 X X X X X S
Enabled 0x04 1 0 X X X X X S
FUNCTION
ADDRESS CODE
(HEX)
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
Shutdown 0x04 M 0 X X X X X 0
Normal Operation 0x04 M 0 X X X X X 1
FUNCTION
ADDRESS CODE
(HEX)
REGISTER DATA
D7 D6 D5 D4 D3 D2 D1 D0
Configuration Register 0x04 M 0 X X X X X S
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Maxim Integrated │ 16
MAX7300 2-Wire-Interfaced, 2.5V to 5.5V,
20-Port or 28-Port I/O Expander