WDI PIN OF PF8100 TO LS1046

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WDI PIN OF PF8100 TO LS1046

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Ellu24
Contributor III

To which pin of LS1046 I should connect WDI pin of PF8100 PMIC, if I want to enable WD reset? 

Please find PF8100 datasheet. 

Thanks in advance

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yipingwang
NXP TechSupport
NXP TechSupport

To enable WD reset, connect the pin to HRESET of LS1046A.
Required input assertion time of HRESET_B is 32 SYSCLKs.
Customer has to keep in mind the following when enabling WD reset.
1. If min. assertion time of WD pin is greater than min. assertion time of HRESET then WD reset will be successful.
2. If WD reset is configurable then change the min assertion time of WDI pin as per the requirement based on HRESET.
3. If WD reset is not configurable the use Reset IC in between.

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