Dio Programming - 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 I M B A - Q 7 7
E.1 DIO Programming
IMBA-Q77 utilizes W83627DHG chipset as its Digital I/O controller.
Below are the procedures to complete its configuration and the
AAEON initial watchdog timer program is also attached based on
which you can develop customized program to fit your application.
There are three steps to complete the configuration setup: (1) Enter
the MB PnP Mode; (2) Modify the data of configuration registers; (3)
Exit the MB PnP Mode. Undesired result may occur if the MB PnP
Mode is not exited normally.(These three steps are the same as
programming WDT)
E-2
Appendix E Digital Input & Output