Advantech PCM-9588 User Manual
Page 96
PCM-9588 User Manual
86
;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