目录
SFR页参考
第1章概述.............................................. ............... 1
1.1
1.2
1.3
1.4
1.5
1.6
应用程序................................................................................................................... 1
性能概述................................................ .................................................. 2
框图............................................................................................................... 3
产品信息...................................................................................................... 4
引脚分配............................................................................................................五
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 AddressRegisters （ A0和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保留区....................................................................................................................................... 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
5.2软件复位.............................................................................................................. 14
5.3看门狗复位.............................................. .................................................. 14
第6章时钟产生电路.................................. 17
6.1主时钟..................................................................................................................... 21
6.2片上振荡器时钟............................................ ................................................. 22
A-1
