User`s manual

PICO820 Series All-In-One PICO ITX Board User’s Manual
Digital I/O
67
APPENDIX B
DIGITAL I/O
Digital I/O Software Programming
 GPI program sample:
O 2E 87
Un-Lock Super I/O
O 2E 87
Un-Lock Super I/O
O 2E 07
Select Logic device
O 2F 07
O 2E F1
Read Data
I 2F XX
XX is input Data;if no input source,the
value is 0F
Q
Quit debug
 GPO program sample:
O 2E 87
Un-Lock Super I/O
O 2E 87
Un-Lock Super I/O
O 2E 07
Select Logic device
O 2F 07
O 2E F1
Output Data
I 2F XX
XF=0F,1F,2F,…FF (X is Output Data)
Q
Quit debug