MAX7365 Maxim, MAX7365 Datasheet - Page 28

• Manufacturer Part Number: MAX7365
• Description: The MAX7365 is an I²C-interfaced peripheral that provides microprocessors with management of up to 56 key switches
• Manufacturer: Maxim

Table 26. GPIO Global Configuration Register (0x40)
Table 27. GPI Debounce Setting Register (0x42)
Table 28. I
Power-up default setting
Debounce time is 9ms
Debounce time is 10ms
Debounce time is 11ms
Debounce time is 12ms
Debounce time is 37ms
Debounce time is 38ms
Debounce time is 39ms
Debounce time is 40ms
REGISTER BIT
REGISTER
D[7:1]
BIT
D0
D[7:6]
D[3:0]
REGISTER DESCRIPTION
D5
D4
2
C Timeout Flag Register (0x48) (Read Only)
DESCRIPTION
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I
2
Reserved
C Timeout
Operating Mode
Timeout Enable
DESCRIPTION
Flag
I
2
Reserved
Reserved
C Interrupt
Key-Switch Controller with GPIO Ports
0000000
VALUE
0
1
D7
VALUE
0
0
0
0
0
0
0
0
—
No I
I
reset to zero when a read is performed on this register. I
timeouts must be enabled for this function to work (Table
26).
00
—
2
0
1
0
1
C timeout has occurred since last read or POR. This bit is
2
C timeout has occurred since last read or POR.
D6
RESERVED
0
0
0
0
0
0
0
0
—
Disable I
Enable I
serted when a read is performed on the I
timeout flag register (0x48)
Standby mode
Normal mode
—
1MHz I
D5
0
0
0
0
0
0
0
0
2
2
C timeout interrupt. INT is deas-
C timeout interrupt
FUNCTION
REGISTER DATA
FUNCTION
D4
0
0
0
0
1
1
1
1
2
C-Interfaced 8 x 7
D3
0
0
0
0
1
1
1
1
DEBOUNCE TIME
D2
0
0
0
0
1
1
1
1
2
C
2
C
MAX7365
DEFAULT VALUE
D1
0
0
1
1
0
0
1
1
DEFAULT
0000000
VALUE
0000
00
0
0
0
D0
0
1
1
0
1
0
1
0