Advantech PCM-9588 user manual Newiodelay

;Output : AL - Value read ;============================================================== Ct_I2CReadByteProcNear

push cx
mov	dx,SMBus_Port +04h
inc	ch
mov	al,ch	;ID cmd(read)
out	dx,al
NEWIODELAY
NEWIODELAY
call	CT_Chk_SMBus_Ready
pop	ax
mov	dl,03h
out	dx,al	;Index
NEWIODELAY
NEWIODELAY
mov	dl,02h
mov	al,48h
out	dx,al	;Read data
NEWIODELAY
NEWIODELAY
mov	cx, 100h

@@:

newiodelay loop short @B

call	CT_Chk_SMBus_Ready
mov	dl,05
in	al,dx	;Data0

NEWIODELAY

NEWIODELAY

ret

Ct_I2CReadByteEndp ;============================================================== ;Input : CL - register index

;CH - device ID

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