2.1.4相关知识 ●8051单片机RAM位寻址表 1RAM位寻址区地址表 单元地址 MB位地址8 2FH TFH TEH TDH TCH TAH 79H 78H TTH 75H 74H 73H 72H 71H TOH 2DH 6FH 6EH 6DH bCH bBH 6AH 69H 68H 2CH 6TH 66H 65H 64H 63H 62H 61H 60H SFH SEH SDH 5BH SAH 59H 2AH STH 56H 55H 54H 53H 52H 51H 50H 4FH 4E EH 4DH 4BH 4AH 49H 48H 28H 47H 46H 45H 44H 43H 42H 41H 40H 2TH 3FH 3EH 3DH 3BH 39H 38H 26H 3TH 36H 35H 34H 33H 32H 31H 30H 25H 2FH 2EH ZDH 2BH 29H 28H 24H 2TH 26H 25H 24H 23H 21H 20H 23H 1FH 1EH lDH 1CH 1BH 22H 17H 16H 15H 14H 13H 12H 11H 21H OFH OEH ODHOCHOBH OAH 09H 08H 20H OTH 06H O5H 04H 03H 02H 01H 00H2.1.4 相关知识 ⚫8051单片机RAM位寻址表