第6章中断控制器（ INTC ） ........................................... ................... 77

6.1

6.2

6.3

产品特点.............................................................................................................................77

输入/输出引脚..............................................................................................................79

注册说明........................................................................................................79

6.3.1中断控制寄存器1 （ ICR1 ） ........................................ ............................. 80

6.3.2中断控制寄存器2 （ ICR2 ） ........................................ ............................. 82

6.3.3 IRQ状态寄存器（ ISR ） ......................................... ........................................... 84

6.3.4中断优先级寄存器A至J （ IPRA到IPRJ ） .................................... ........... 85

中断源...............................................................................................................87

6.4.1外部中断............................................. .................................................. 87

6.4.2片上外围模块中断......................................... ....................... 88

6.4.3用户断点中断............................................ ................................................ 88

6.4.4 H- UDI中断...................................................................................................89

中断异常处理向量表............................................. ..................... 90

Operation...........................................................................................................................93

6.6.1中断序列............................................. .................................................. 93

中断异常处理后的6.6.2堆栈.......................................... ................ 95

中断响应时间...................................................................................................96

数据传输与中断请求信号............................................ ....................... 98

6.8.1处理中断请求信号的来源为DTC激活和

CPU中断，但不DMAC激活........................................... ............... 99

6.8.2处理中断请求信号的来源进行激活DMAC ，

但不是CPU中断和DTC激活........................................... ............. 99

6.8.3处理中断请求信号源的DTC激活，

但不是CPU中断和DMAC激活........................................... ......... 99

6.8.4处理中断请求信号源为CPU中断

但不是DMAC和DTC激活............................................ ....................... 100

6.4

6.5

6.6

6.7

6.8

第7用户中断控制器（UBC ） .......................................... ................. 101

7.1

7.2

产品特点.............................................................................................................................101

注册说明........................................................................................................103

7.2.1用户断点地址寄存器（ UBAR ） ........................................ ........................ 103

7.2.2用户断点地址屏蔽寄存器（ UBAMR ） ....................................... ............ 103

7.2.3用户断点总线周期寄存器（ UBBR ） ....................................... ...................... 104

7.2.4用户中断控制寄存器（ UBCR ） ........................................ .......................... 105

Operation...........................................................................................................................106

7.3.1流动用户断点运行.......................................... ................................... 106

7.3.2中断的片上存储器取指令周期...................................... ..... 108

7.3.3程序计数器（PC ）值保存........................................ ........................... 108

使用的例子...............................................................................................................109

Rev.4.00 2008年3月27日，第四十四页的喜

REJ09B0108-0400

7.3

7.4