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UCD3138A PMBST question

Other Parts Discussed in Thread: UCD3138A

Hi UCD3138A Experts,

PMBST register is clear on read. If I read Byte 2, will it clear Half 0? Likewise, if I read Half 0, will it clear Byte 2? 

The reason I ask is because I want to use CONTROL pin interrupt. But PMBus handler is running in background, which seemingly only accesses Half 0 (EVM sample code). I'm hoping the background PMBus activity will not clear CONTROL pin interrupt flag (located in Byte 2).

 

Thanks!

Zhiyuan