目录
SFR页参考
第1章概述.............................................. ................ 1
1.1应用.................................................................................................................... 1
1.2性能概述............................................... .................................................. 2 ..
1.3框图................................................................................................................ 3
1.4产品信息....................................................................................................... 4
1.5引脚Assignments.............................................................................................................五
1.6引脚说明............................................................................................................... 6
第2章中央处理单元( CPU ) .......................... 7
2.1数据寄存器( R0,R1, R2和R3 ) ...................................... ........................................ 7
2.2地址寄存器(A0, A1 ) .......................................... ........................................... 8
2.3帧基址寄存器( FB ) ........................................... .................................................. 8
2.4中断表寄存器( INTB ) ........................................... ........................................... 8
2.5程序计数器(PC ) ............................................ .................................................. ...... 8
2.6用户堆栈指针( USP)和中断堆栈指针( ISP ) .................................... 8 ..
2.7静态基址寄存器( SB ) ........................................... .................................................. 8
2.8标志寄存器( FLG ) ........................................................................................................ 8
2.8.1进位标志(C标志) ......................................... .................................................. ......... 8
2.8.2调试标志(D标志) ......................................... .................................................. 8 ........
2.8.3零标志(Z标志) ...................................................................................................... 8
2.8.4符号标志(S标志) ...................................................................................................... 8
2.8.5寄存器组选择标志(B标志) ....................................... ................................... 8
2.8.6溢出标志(O标志) ......................................... .................................................. 8 ...
2.8.7中断允许标志(I标志) ........................................ ............................................ 8
2.8.8堆栈指针选择标志(U标志) ....................................... .................................... 8
2.8.9处理器中断优先级( IPL ) ........................................ .......................... 8
2.8.10保留Area.......................................................................................................... 8
第3章记忆.............................................. .................. 9
第4章特殊功能寄存器(SFR ) ................... 10
第5章复位.............................................. .................... 14
5.1硬件复位............................................................................................................ 14
5.1.1硬件复位1 .................................................................................................................................. 14
5.1.2硬件复位2 .................................................................................................................................. 17
5.1.3上电复位功能..................................................................................................................... 18
5.2软件复位.............................................................................................................. 20
5.3看门狗复位.............................................. .................................................. 20
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