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IT8705F V0.4
56
IT8705F
8.9.12
Simple I/O Set 1, 2, 3, 4, 5 and 6 Enable Registers (Index=C0h, C1h, C2h, C3h,C4h and C5h,
Default=00h)
These registers are used to select the functions of either the Simple I/O or the Alternate function.
Bit
Description
7-0
Simple GPIO Enable
For each bit:
1: Select the Simple I/O function.
0: Select the Alternate function.
8.9.13
Simple I/O Set 1, 2, 3, 4, 5 and 6 Output Enable Registers (Index=C8h,C9h,CAh,CBh,CCh and
CDh, Default=00h)
These registers are used to determine the direction of the Simple I/O.
Bit
Description
7-0
GPIO Output Enable
For each bit:
0: The direction of the Simple I/O is input mode.
1: The direction of the Simple I/O is output mode.
8.9.14
Panel Button De-bounce Control Register (Index=D0h, Default=00h)
Bit
Description
7-5
Reserved
4
IRQ Sharing
0: Disabled.
1: Enabled.
3
IRQ Output Type
0: Edge.
1: Level.
2
IRQ Output Enable
0: Disabled.
1: Enabled.
1-0
De-bounce Time Selection
00: 8 ms (6 ms ignored, 8 ms passed)
01: 16 ms (12 ms ignored, 16 ms passed)
10: 32 ms (24 ms ignored, 21 ms passed)
11: 64 ms (48 ms ignored, 64 ms passed)
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