C&T Solution RCO-3122PP-4P-M12-N4200, User Manual

Page: 98 / 100

RCO- 3200 | User’s Manual
98
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GPI 4 ~ GPI 7
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GPO 4 ~ GPO 7
GPI_REG equ 0A06h
GPO_REG equ 0A06h
GPO_4 equ 00010000b
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Sample Code:
#3 : Get GPI 4 status
; Get GPI 4 Pin Status Register
In al, GPI_REG
;al bit0 = GPI 4 status
#4 : Set GPO 4 status to high
; Set GPO 0 Pin to High
mov dx, GPO_REG
in al, dx
or al, GPO_4
out dx, al
;al bit4 = GPO 4 status
Appendix – WDT & GPIO
GPI 4 GPI 5 GPI 6 GPI 7
IO Address 0xA06h 0xA06h 0xA06h 0xA06h
Bit 0 1 2 3
Sample code #3
GPO 4 GPO 5 GPO 6 GPO 7
IO Address 0xA06h 0xA07h #5 0xA04h
Bit 4 7 0 7
Sample code #4 #5