关于ISR的说法正确的是？A．英文全称为 Interrupt Service RoutineB．ISR即中断服务程序C．ISR代码最后执行一条中断返回指令，返回到之前被中断的程序处继续执行D．ISR执行过程中不能被其他中断源中断
关于ISR的说法正确的是？
A．英文全称为 Interrupt Service Routine
B．ISR即中断服务程序
C．ISR代码最后执行一条中断返回指令，返回到之前被中断的程序处继续执行
D．ISR执行过程中不能被其他中断源中断
参考答案和解析
英文全称为 Interrupt Service Routine;ISR即中断服务程序;ISR代码最后执行一条中断返回指令，返回到之前被中断的程序处继续执行
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