Aaeon PCM-5895, Manual

Page: 64 / 72

C o m p a c t B o a r d P C M - 5 8 9 5 R e v . B
Appendix A Programming the Watchdog Timer
A - 7
RET
Exit_Configuration_Mode ENDP
Check_Chip PROC NEAR
MOV AL,20h
CALL Read_Configuration_Data
CMP AL,87h
JNE Not_Initial
MOV AL,21h
CALL Read_Configuration_Data
CMP AL,12h
JNE Not_Initial
Need_Initial:
STC
RET
Not_Initial:
CLC
RET
Check_Chip ENDP
Read_Configuration_Data PROC NEAR
MOV DX,WORD PTR CS:[C04h]
OUT DX,AL