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I2C

Other Parts Discussed in Thread: PCA9555

I2C运行一段时间后,I2C再发送数据时出现ICSTR寄存器BB一直处于繁忙状态,ICSTR-ICXRDY为1,并且ICIMR所有的中断都disable了,我是在判断BB不处于busy状态后将ICIMR中配置的相关中断disable掉,为什么在没有对ICIMR寄存器中的中断进行disable的情况下,ICIMR寄存器的监控中看到中断都disable了?