This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

C6678,CIC,channel 和 host interrupt之间的映射问题



最近在看C6678的中断部分,在sprugw4a(《Chip Interrupt Controller User Guide》)文档说channel-to-host interrupt之间的映射是固定的,但是它没有具体说明是怎么映射的。想请教下是channel n对应host interrupt n这样有依次连续对应的吗,还是没有规律的对应哈?

  • CIC的输出事件可以作为INTC的输入事件,CIC输出channel事件与INTC的host interrupt是一一固定对应的,具体可以查看相应器件的手册,如C6678 data manual中的中断控制器一节,其中有相应的表格列出所有INTC的host interrupt输入事件,从这个表格可以看出某些host interrupt是来自于CIC的输出。