Aaeon AEC-6840, Руководство пользователя

Страница: 61 / 63

R U G G E D S I B
E m b e d d e d C o n t r o l l e r
A E C - 6 8 4 0
AEC-6840 User Manual 60
-i 4f read F1 value
-0f F1 value
-o 4f,1f output "high" to port 5
-o 4f,3f output "high" to port 5 and port 6
-i 4f
-0e if input port 1 to "low",then you can read data
become to 0e
-0d if input port 2 to "low",then you can read data
become to 0d
Another method: You and setup a base address to digital IO
in BIOS, and have four selection
：
280h
，
290h
，
2A0h
，
2B0h.
Example:
select 280h
-o 280 1f output "high" to port 5
-o 280 3f output "high" to port 5 and port 6
-i 280
-0e if input port 1 to "low”, and then you can read data
become to 0e
-0d if input port 2 to "low”, and then you can read data
become to 0d