Digital I/O Register - Aaeon IMBA-Q77 User Manual

I n d u s t r i a l M o t h e r b o a r d
E.2 Digital I/O Register
GPIO Device Configuration Register (LDN 0x09)
Register 0x[HEX]
F0
F1
Register Name
DIO I/O register
0: The respective DIO PIN is programmed
as an output port.
1: The respective DIO PIN is programmed
as an input port.
GPIO3 Data register
For output ports, the respective bits can be
read and written by the pins.
For input ports , the respective bits can only
be read by the pins. Write accesses are
ignored.
Appendix E Digital Input & Output
I M B A - Q 7 7
E-3