Advantech PCM-9588 user manual CH device ID

push	cx	;save NO. of GPIO chip
mov	ax,5e87h
mov	bx,0422h
int	15h
;5. Check GPI 0,2,4,6 value
pop	cx	;restore	NO. of GPIO chip
push	cx	;save NO. of GPIO chip
mov	ax,5e87h
mov	bx,03FFh
int	15h
pop	cx	;restore	NO. of GPIO chip
push	cx	;save NO. of GPIO chip
dec	cx
mov	al,Fail_lenght
mul	cl
lea	dx, Fail_Str
add	dx,ax
cmp	bl,33h
jne	test_result
pop	cx	;restore	NO. of GPIO chip
push	cx	;save NO. of GPIO chip
dec	cx
mov	al,Success_lenght
mul	cl
lea	dx, Success1_Str
add	dx,ax

;Do Second PCA9554 test

;1.Set GPIO 0,2,4,6 as output, GPI 1,3,5,7 as input

test_result:
mov	ah,09h
int	21h
pop	cx
dec	cx
jnz	next_test
Finish_Test:
popa
.exit

;============================================================== ;Input : CL - register index

;CH - device ID

Appendix C Programmable GPIO & Watchdog Timer

85 PCM-9588 User Manual