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UCD9090A: Watchdog Disable

Part Number: UCD9090A

I want to disable the Watchdog function dynamically (without resetting the device), but it was not invalidated by the method shown below.

Is there a way to dynamically disable the Watchdog function?

I unchecked "Enable system watchdog" and clicked "Write to Hardware".

  • Hi
    Once the watchdog is enable, it can not be disable by uncheck the "ENABLE SYSTEM WATCHDOG" bit on the fly. Does the WDI stop output signal at some ponit? i did not see any configured WDO. What's the purpose to have system watch dog? does customer use system reset function?
    The way i would suggest is to have the host to send out SYSTEM_WATCHDOG_RESET command periodically(less than watchdog period) to prevent the watchdog. If customer have systme reset function, they can check the box"Disable untile system reset release" to suspend the watchdong until the system reset is de-asserted again. but this method need be extra care since the system watchdog will be re-active up to the system reset status.
    Regards
    YH