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BQ76930 POR上电时序的探讨

Hi

关于bq769x0的上电时序,有些疑问:

1、POR事件具体是怎么触发的?需要哪个引脚大于多少电压?

2、“7.4.2 SHIP Mode”章节讲到“If any of the supply-side voltages below fall below VSHUT and then back up above VPORA, the device defaults into the SHIP mode state.”  VSHUT=3.6V,VPORA=4~5V, 问题来了:其中supply-side voltages 代表什么电压?

3、POR后自动进入NORAML模式,RAM里的数据不会被保留(或说是清0),然后拉高TS1脚boot-up后,会进入NORMAL模式,然后默认值会自动加载到RAM中,如果需要修改默认值,就用host去重写。对吧?问题来了:进入NORMAL模式后,加载默认值需要多久,需要延时再用host重写吗?

多谢!