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UCD9090: GPO ORing

Hi Team,

Is it possible to OR two GPO lines??

For example,
GPO_A is an active LOW signal which asserts on 'SYSTEM_WATCHDOG_TIMEOUT'.
GPO_B is an active HIGH signal which asserts 4seconds after an 'SYSTEM_WATCHDOG_TIMEOUT'.

GPO_C= GPO_A (or) GPO_B; so that GPO_C gets a pulse of 4seconds which I can use it for RESET.


The problem is GPO_C follows GPO_A and there is no ORing done.

Am I missing something? Please help!!!!