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F.1
Digital I/O Ports
The F75111 provides one serial access interface, I2C Bus, to read/write internal registers.
The address of Serial Bus is 0x6E (0110_1110)
The related register for configuring DIO is list as follows:
Configuration and Control Register-Index 01h
Power-on default [7:0]=0000_1000b
Bit
Name
7
INIT
Reserved
6
5
EN_WDT10
4
Reserved
Reserved
3
2
Reserved
1
SMART_POWR_MAGEMENT
0
SOFT_POWR_DOWN
Appendix F – Digital I/O Ports
R/W
PWR
Description
Software reset for all registers
R/W
VSB3V
including Test Mode registers.
Users use only.
R/W
VSB3V
Enable Reset Out. If set to 1,
R/W
VSB3V
enable WDTOUT10# output.
Default is disable.
R/W
VSB3V
R/W
VSB3V
R/W
VSB3V
Set this bit to 1 will enable auto
power down mode, when all
function are idle then 20ms the
R/W
VSB3V
chip will auto power down, it will
wakeup when GPIO state change
or read write register
Set this bit to 1 will power down
all of the analog block and stop
R/W
VSB3V
internal clock, write 0 to clear this
bit or when GPIO state change
will auto clear this bit to 0.
139
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