Datasheet

ADM1178 Data Sheet

Rev. D | Page 20 of 24

Table 15. Status Byte Operations

Bit Name Function

0 ADC_OC An ADC-based overcurrent comparison is detected on the last three conversions.

1 ADC_ALERT An ADC-based overcurrent trip has occurred, causing the alert. Cleared by writing to Bit 4 of the ALERT_EN register.

2 HS_OC The hot swap operation is off due to an analog overcurrent event. On parts that latch off, this is the same as the

HS_ALERT status bit (if EN_HS_ALERT = 1). On the retry parts, this indicates the current state: a 0 can indicate that the

data was read during a period when the device was retrying or that it has successfully hot swapped by retrying after at

least one overcurrent timeout.

3 HS_ALERT The hot swap operation has failed since the last time this was reset. Cleared by writing to Bit 4 of the ALERT_EN register.

4 OFF_STATUS The state of the ON pin. Set to 1 if the input pin is deasserted. Can also be set to 1 by writing to the SWOFF bit of the

CONTROL register.

OFF_ALERT

An alert has been caused by either the ON pin or the SWOFF bit. Cleared by writing to Bit 4 of the ALERT_EN register.