目录

第一章概述............................................... ................................................ 1

1.1

1.2

1.3

1.4

Features.................................................................................................................................. 1

内部模块Diagram.......................................................................................................... 3

管脚配置....................................................................................................................五

引脚功能......................................................................................................................... 7

第2个CPU ..................................................................................................... 11

2.1

2.2

地址空间和内存映射............................................. ........................................... 12

注册Configuration......................................................................................................... 15

2.2.1一般Registers.................................................................................................... 16

2.2.2程序计数器（PC ） .......................................... .................................................. 17

2.2.3条件码寄存器（ CCR ） ........................................ ..................................... 17

数据Formats........................................................................................................................ 19

2.3.1通用寄存器的数据格式........................................... .................................... 19

2.3.2内存数据格式............................................ ................................................ 21

指令集...................................................................................................................... 22

2.4.1表指令按功能分类......................................... ................. 22

2.4.2基本指令格式............................................ ........................................... 32

寻址方式和有效地址的计算............................................ ............ 33

2.5.1寻址模式............................................. .................................................. ... 33

2.5.2有效地址的计算............................................ .................................... 36

基本总线周期................................................................................................................... 38

2.6.1访问片内存储器（ RAM ， ROM ） .................................... ........................ 38

2.6.2片上外围模块.......................................... ........................................ 39

CPU的国家........................................................................................................................... 40

使用注意事项......................................................................................................................... 41

在数据访问2.8.1注释空白区域........................................ ........................... 41

2.8.2 EEPMOV Instruction.............................................................................................. 41

2.8.3位操作指令........................................... ....................................... 41

2.3

2.4

2.5

2.6

2.7

2.8

第3节异常处理.............................................. ............................... 47

3.1

3.2

异常类型和向量地址............................................. .................................. 48

注册Descriptions........................................................................................................... 49

3.2.1中断边沿选择寄存器1 （ IEGR1 ） ....................................... ....................... 50

3.2.2中断边沿选择寄存器2 （ IEGR2 ） ....................................... ....................... 51

3.2.3中断使能寄存器1 （ IENR1 ） ........................................ .............................. 52

3.2.4中断使能寄存器2 （ IENR2 ） ........................................ .............................. 53

Rev.5.00 2005年11月2日三十二页的X