Hi,
I have a question about UCD9090 GPO configuration, below is my seeting.
Suppose :
a. GPI 1 : Low
b. GPI 2 : High
c. RAIL1[POWER_GOOD] : High
d. GPO2 : (GPI2 * RAIL1[POWER_GOOD]) + (GPO1)
When system start, what is the GPO 2 state (high or low) ??
GPO 4 is low, and GPO1 is low, too.
How about GPO2 ? In logical, it should be high (because GPI2 & RAIL1[POWER_GOOD] are high).
But, actually, it is Low.
I don't understand it, does it make sense ??