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BQ28Z610-R1: 间歇性主动对外通讯

Part Number: BQ28Z610-R1
Other Parts Discussed in Thread: BQ28Z610

bq28z610-r1通讯口给了上拉电平,在没有和系统通讯时,芯片主动对外发送上图波形信号,信号出现的时间间隔为1S-14S-S-14S。在bq40z50r2上没有测到这个现象。

请问应该怎么解释这个信号的出现?可以消除吗?