UCS2113 datasheet(36/62 Pages) MICROCHIP

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UCS2113

DS20005680B-page 36

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bit 1

BACK_V1: Back-Bias Voltage Port 1 - Indicates that the VBUS1 voltage has exceeded the VS or VDD

voltages by more than 150 mV. This bit will be cleared when read if the error condition has been removed

or if the ERR1 bit is cleared. This bit will cause the ALERT#1 pin to be asserted and the device to enter

the Error state.

1 =VBUS1 > VS, or VBUS1 > VDD by more than 150 mV.

0 =VBUS1 voltage has not exceeded the VS and VDD voltages by more than 150 mV.

bit 0

OV_LIM1: Over Current Limit Port 1 - Indicates that the IBUS current has exceeded both the ILIM thresh-

old and the IBUS_R2MIN threshold settings for VBUS1. This bit will be cleared when read if the error con-

dition has been removed or if the ERR1 bit is cleared. This bit will cause the ALERT#1 pin to be asserted

and the device to enter the Error state.

1 = Current Limit for Port 1 exceeded

0 = Current Limit for Port 1 not exceeded

Note 1: Note that the ERR1 bit does not necessarily reflect the ALERT#1 pin status. The ALERT#1 pin may be

cleared or asserted without the ERR1 bit changing states.

INTERRUPT STATUS 1 REGISTER (ADDRESS 03H) (CONTINUED)

UCS2113 数据表(PDF) 36 Page - Microchip Technology