目录

第1章概述

1.1纲要32171的............................................. ............................................. 1-2

1.1.1 M32R系列CPU核心........................................... ....................... 1-2

1.1.2内置乘法累加运算功能............................. 1-3

1.1.3内置闪存和RAM ........................................ .............. 1-3

1.1.4内置时钟倍频器......................................... ......... 1-4

1.1.5内置强大的外围功能......................................... 1-4 ....

1.1.6内置全CAN功能........................................ ....................... 1-6

1.1.7内置调试功能.......................................... ......................... 1-6

1.2框图............................................... .................................................. 1-7 ..

1.3引脚功能............................................... .................................................. ... 1-11

1.4引脚布局........................................................................................................ 1-17

第2章CPU

2.1 CPU寄存器............................................... .................................................. 2-2 ..

2.2通用寄存器............................................. ................................. 2-2

2.3控制寄存器............................................... ............................................... 2-3

2.3.1处理器状态字寄存器： PSW （ CR0 ） ................................. 2-4

2.3.2条件位寄存器： CBR （ CR1 ） ....................................... 2-5 ...........

2.3.3中断堆栈指针： SPI （ CR2 ） ....................................... ............ 2-5

用户堆栈指针： SPU （ CR3 ）

2.3.4备份PC ： BPC （ CR6 ） ........................................ ........................... 2-5

2.4蓄电池...................................................................................................... 2-6

2.5程序计数器............................................... ............................................... 2-6

2.6数据格式..................................................................................................... 2-7

2.6.1数据类型............................................. ......................................... 2-7

2.6.2数据格式............................................. ...................................... 2-8

2.7注意事项CPU .............................................. ......................................... 2-14

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