Gpio Sample Code - MSI MS-98F6 Owner's Manual

GPIO Sample Code


GPI 0 ~ GPI 3
IO Address
SIO GPIO Register
Bit
Sample code

GPO 0 ~ GPO 3
IO Address
SIO GPIO Register
Bit
Sample code
SIO_INDEX_Port
SIO_DATA_Port
SIO_UnLock_Value
SIO_Lock_Value
SIO_LDN_GPIO
GPI_REG
GPO_REG
GPI_ADD
GPO_ADD
GPO_0
Sample Code:
#1 : Get GPI 0 status
; Enable config mode
mov dx, SIO_INDEX_Port
mov al, SIO_UnLock_Value
out dx, al
jmp short $+2
jmp short $+2
out dx, al
; Switch GPIO Configuration for SIO LDN 0x06
mov dx, SIO_INDEX_Port
mov al, 07h
out dx, al
mov dx, SIO_DATA_Port
mov al, SIO_LDN_GPIO
out dx, al
; Get GPI 0 Pin Status Register
mov dx, SIO_INDEX_Port
mov al, GPI_REG
out dx, al
mov dx, SIO_DATA_Port
in al, dx
;al bit0 = GPI 0 status
Exit SIO
;
GPI 0 GPI 1 GPI 2
82h 82h 82h
0 1 2
#1
GPO 0 GPO 1 GPO 2
81h 81h 81h
4 5 6
#2
equ 04Eh
equ 04Fh
equ 087h
equ 0AAh
equ 06h
equ 082h
equ 081h
equ 000h
equ 000h
equ 00010000b
;Io_delay
;Io_delay
GPI 3
82h
3
GPO 3
81h
7
MS-98F6
A-3