SNVSBM4D March 2022 – October 2024 TPS389006-Q1 , TPS389R0-Q1
PRODMIX
In the case of power up AMSK_ON and AMSK_EXS registers apply. It masks interrupts till the MON voltage crosses the UVLF threshold or sequence timeout expires whichever is sooner. In the case of power down AMSK_OFF and AMSK_ENS registers apply. It masks interrupts till the MON voltage is below the OFF threshold and then the OVLF interrupts are active.
Table 7-2 summarizes the auto-mask operation for the ACT and SLEEP transitions.
TRANSITION | AUTO-MASK APPLIED | AUTO-MASK APPLIES TO | AUTO-MASK INACTIVE | INTERRUPTS ACTIVE FOR MON CHANNELS NOT IN AUTO-MASK |
---|---|---|---|---|
ACT (Low -> High) | AMSK_ON | IEN_UVLF, IEN_UVHF, IEN_OVHF | SEQ_TOUT expires or rail crosses UVLF | At ACT=High |
ACT (High -> Low) | AMSK_OFF | IEN_UVLF, IEN_UVHF, IEN_OVHF | Auto-mask active in transition till SEQ_TOUT expires | Until SEQ_TOUT expires |
SLEEP (Low -> High) ACT = High | AMSK_EXS | IEN_UVLF, IEN_UVHF, IEN_OVHF | SEQ_TOUT expires or rail crosses UVLF | Always active |
SLEEP (High -> Low) ACT = High | AMSK_ENS | IEN_UVLF, IEN_UVHF, IEN_OVHF | Auto-mask active | Always active |