Advantech PCM-9588 user manual Clc Mov Cx,0800h ChkI2cOK Al,dx Get status

clc
mov	cx,0800h
Chk_I2c_OK:
in	al,dx	;get status
NEWIODELAY
out	dx,al	;clear status
NEWIODELAY
test	al, 02H	;termination of command ?
jnz	short Clear_final
and	al, NOT 40H;mask INUSE bit
or	al,al	;status OK ?
jz	short Clear_final
test	al,04h	;device error
jnz	short SMBus_Err

loop short Chk_I2c_OK ;SMbus error due to timeout

SMBus_Err:

stc ret

Clear_final:

clc ret

CT_Chk_SMBus_ReadyEndp

;;===============================================================

Delay5msprocnear push cx mov cx, 1000

@@:

NEWIODELAY loop short @B pop cx

ret

Delay5ms ENDP Phoenix_debuger proc near

pushf push cx

push offset PhdebugRetAddr push cs

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