8051??????????RAM???
????51 ??е????????洢?????????
????51 ??е??????????洢?? RAM ?????????? 16bit ???????????? DPTR(Data Pointer) ????????????? RAM ??? (byte) ?????????????????? (Address) ?????? 51 ??е?????????????Χ ( ??????????Χ ) ??
????0000 0000 0000 0000B ?? 1111 1111 1111 1111B ?????????
??????0 ??0 ????0 ??0 H???? ??F?? F ??F ????F H ??????????
??????????????????0 ???? ?? ??????????65535 ????????????
??????? 51 ??е?????? RAM ????Χ??? 64K
????51 ??е???? ROM ?? RAM ????????Χ???? 0000H ?? FFFFH ??????????????????·????????????????????
????51 ??е?????У????????????о??? A/D?? D/A ????л??????????????Щ???????????????? RAM ????????
????admin ?????????2018-05-08
