前言...................................................................................................................................................1

关于本手册...............................................................................................................................1

第 1 章概述.....................................................................................................................................3

1.1 关于处理器 ........................................................................................................................3

1.2 处理器的组件 ....................................................................................................................4

1.2.1 Cortex-M3 的层次和实现的选项 ...........................................................................5

1.2.2 处理器内核 .............................................................................................................6

1.2.3 NVIC ........................................................................................................................7

1.2.4 总线矩阵 .................................................................................................................7

1.2.5 FPB...........................................................................................................................8

1.2.6 DWT.........................................................................................................................8

1.2.7 ITM...........................................................................................................................8

1.2.8 MPU .........................................................................................................................8

1.2.9 ETM .........................................................................................................................8

1.2.10 TPIU .......................................................................................................................8

1.2.11 SW/JTAG-DP .........................................................................................................9

1.3 可配置的选项 ....................................................................................................................9

1.3.1 中断 .........................................................................................................................9

1.3.2 MPU .........................................................................................................................9

1.3.3 ETM .........................................................................................................................9

1.4 指令集汇总 ........................................................................................................................9

第 2 章编程模型（programmer

's model） ...............................................................................17

2.1 关于编程模型 ..................................................................................................................17

2.1.1 工作模式 ...............................................................................................................17

2.1.2 工作状态 ...............................................................................................................17

2.2 特权访问和用户访问 ......................................................................................................17

2.2.1 主堆栈和进程堆栈 ...............................................................................................18

2.3 寄存器..............................................................................................................................18

2.3.1 通用寄存器 ...........................................................................................................18

2.3.2 特殊用途的程序状态寄存器（xPSR） ..............................................................19

2.4 数据类型..........................................................................................................................22

2.5 存储器格式 ......................................................................................................................22

2.6 指令集..............................................................................................................................24

第 3 章系统控制...........................................................................................................................26

3.1 处理器寄存器汇总 ..........................................................................................................26

3.1.1 嵌套向量中断控制器的寄存器 ...........................................................................26

3.1.2 内核调试寄存器 ...................................................................................................28

3.1.3 系统调试寄存器 ...................................................................................................28

3.1.4 调试接口的端口寄存器 .......................................................................................31

3.1.5 存储器保护单元的寄存器 ...................................................................................32

3.1.6 跟踪端口接口单元的寄存器 ...............................................................................32

3.1.7 嵌入式跟踪宏单元的寄存器 ...............................................................................33