51????????????????ж????????????
MCS-51???????????????????????????
??MCS-51????????I/O????????????????????п???????????????????????????????????????????????????? ??
????λ?????????洢???????????????80H~FFH???????Χ???
MCS-51??????????????ж????
??MCS-51???????????????????????26?? ??
??????12??????λ??????????????λ?????????12??????????????????Чλ???в?????
????admin ?????????2018-05-19
