MAX7365 Maxim, MAX7365 Datasheet - Page 17

• 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 7. Configuration Register (0x01)
X = Don’t care.
REGISTER
BIT
D7
D6
D5
D4
D3
D2
D1
D0
Autowake enable
Timeout disable
DESCRIPTION
Key-release
Reserved
Reserved
Reserved
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Interrupt
enable
Sleep
Key-Switch Controller with GPIO Ports
(when 0x40 D4 = 1)
(when 0x40 D4 = 0)
(when 0x40 D4 = 0)
VALUE
X
0
1
0
0
1
0
0
1
0
0
1
0
1
Key-switch operating mode. Key switches always remain
active when GPI (bit 4 of register 0x40) is high, regardless of
autosleep, autowake, or an I
Key-switch sleep mode. The
entire chip is shut down.
Key-switch operating mode.
—
INT cleared when the FIFO is empty.
INT cleared after host read. In this mode, I
FIFO until interrupt condition is removed or further INT could
be lost.
—
Disable key releases.
Enable key releases.
—
Disable keypress wakeup.
Enable keypress wakeup.
I
I
2
2
C timeout enabled.
C timeout disabled.
1MHz I
FUNCTION
2
2
C write to this bit.
C-Interfaced 8 x 7
I
autowake can all change this
bit. This bit can be read back
by I
status.
2
C write, autosleep, and
2
C any time for current
2
C should read the
MAX7365
DEFAULT
VALUE
0
0
0
0
1
0
1
1