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C6670 — 中断映射



从上图可以看到, 中断配置时,System Interrupt 和 Host Interrupt需要 map 到一起,Host Interrupt 与 Event ID 是 one to one,最后映射到中断向量。

那么,在使用 QpendQ 的中断方式时,

queue number 是如何与 host interrupt 一一对应的?

也就是说如何将 queue number 绑定到 host interrupt 上?

  • 如C6670 device data manual中断章节有相应的表格,列出每个QpendQ与之对应的CIC输入system event,如CIC0的输入事件134对应的TXQ_PEND_22,而在Navigator user guide interrupt map中可以找到TXQ_PEND_22对应的QpendQ是662.