D.2 digital i/o register – AAEON AEC-6977 User Manual
Page 108
E m b e d d e d C o n t r o l l e r
A E C - 6 9 7 7
Appendix D Electrical Specifications for I/O Ports
D-3
D.2 Digital I/O Register
Table 1 : SuperIO relative register table
Default Value
Note
Index
0x2E
(Note1)
SIO MB PnP Mode Index Register
0x2E or 0x4E
Data
0x2F
(Note2)
SIO MB PnP Mode Data Register
0x2F or 0x4F
Table 2 : Digital Input relative register table
LDN
Register
BitNum
DI/DO
Note
DIO‐1 Pin Status
0x06
(Note3)
0x8A
(Note4)
0
(Note5)
DI
GPIO80
DIO‐2 Pin Status
0x06
(Note6)
0x8A
(Note7)
1
(Note8)
DI
GPIO81
DIO‐3 Pin Status
0x06
(Note9)
0x8A
(Note10)
2
(Note11)
DI
GPIO82
DIO‐4 Pin Status
0x06
(Note12)
0x8A
(Note13)
3
(Note14)
DI
GPIO83
DIO‐5 Pin Status
0x06
(Note15)
0x8A
(Note16)
4
(Note17)
DO
GPIO84
DIO‐6 Pin Status
0x06
(Note18)
0x8A
(Note19)
5
(Note20)
DO
GPIO85
DIO‐7 Pin Status
0x06
(Note21)
0x8A
(Note22)
6
(Note23)
DO
GPIO86
DIO‐8 Pin Status
0x06
(Note24)
0x8A
(Note25)
7
(Note26)
DO
GPIO87
Table 3 : Digital Output relative register table
LDN
Register
BitNum
Value
Note
DIO‐1 Output Data
0x06
(Note27)
0x89
(Note28)
0
(Note29)
(Note30)
GPIO80
DIO‐2 Output Data
0x06
(Note31)
0x89
(Note32)
1
(Note33)
(Note34)
GPIO81
DIO‐3 Output Data
0x06
(Note35)
0x89
(Note36)
2
(Note37)
(Note38)
GPIO82
DIO‐4 Output Data
0x06
(Note39)
0x89
(Note40)
3
(Note41)
(Note42)
GPIO83
DIO‐5 Output Data
0x06
(Note43)
0x89
(Note44)
4
(Note45)
(Note46)
GPIO84
DIO‐6 Output Data
0x06
(Note47)
0x89
(Note48)
5
(Note49)
(Note50)
GPIO85
DIO‐7 Output Data
0x06
(Note51)
0x89
(Note52)
6
(Note53)
(Note54)
GPIO86
DIO‐8 Output Data
0x06
(Note55)
0x89
(Note56)
7
(Note57)
(Note58)
GPIO87