AXIOMTEK SBC84620 Series, Руководство пользователя

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SBC84620 AMD
®
Geode GX3 All-in-One Capa Board User’s Manual
Digital I/O
81
A p p e n d i x C
Digital I/O
Using the Digital Input Function
Start
↓
Un-Lock SuperI /O:
O 4E 87 ; Un-lock super I/O
O 4E 87 ; Un-lock super I/O
↓
SelectMultiplexed pin to GPIO Function :
O 4E 2A
O 4F FF
↓
Select Logic device:
O 4E 07
O 4F 07
↓
Activate Logic Device:
O 4E 30
O 4F 01
↓
Select GPI Function:
O 4E F0
O 4F FF
↓
Read Data:
O 4E F1
I 4F
XX ( XX is input Data;
if no input source,the value is FF)