UPD360 datasheet(178/221 Pages) MICROCHIP

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UPD360

DS00002084C-page 178

 2016-2017 Microchip Technology Inc.

12.5.3

PPC INTERRUPT STATUS REGISTER 1 (PPC_INT_STS1)

Address:

0403h

Size:

8 bits

Bits

Description

Type

Default

ERR

Indicates that an error was detected on the VBUS pin and the PPC has

entered the Error state. Writing this bit to “1” will clear the Error state and

allows the PPC to return to the Active state. When written to “1”, all error con-

ditions are checked. If all error conditions have been removed, the PPC

returns to the Active state. This bit is set automatically by the PPC when the

Error state is entered. If any other bit is set in this register, the device will not

leave the Error state.

0: No errors are detected

1: One or more errors have been detected and the PPC has entered the Error

state.

R/W1C

RESERVED

RESET

Indicates that the PPC has just been reset and should be re-programmed.

This bit will set at power-up. This bit is cleared when written with “1” or when

the PWR_EN pin (UPD360-A/UPD360-B only) is toggled (standalone DFP

mode only). The ALERT bit is asserted when this bit is set. This data is

retained in the Sleep state.

R/W1C

MIN_KEEP_OUT

Indicates that the V-I output on the VBUS pin has dropped below VBUS_MIN.

This bit will be cleared when written with “1” if the error condition has been

removed or if the ERR bit is cleared. This bit will cause ALERT to be asserted

and the device to enter the Error state.

R/W1C

TSD

Indicates that the internal temperature has exceeded tTSD threshold and the

device has entered the Error state. This bit will be cleared when written with

“1” if the error condition has been removed or if the ERR bit is cleared. This bit

will cause ALERT to be asserted and the device to enter the Error state.

R/W1C

OVER_VOLT

Indicates that the VS voltage has exceeded the VS_OV threshold and the

device has entered the Error state. This bit will be cleared when written with

“1” if the error condition has been removed or if the ERR bit is cleared. This bit

will cause ALERT to be asserted and the device to enter the Error state.

R/W1C

RESERVED

R/W1C

OVER_ILIM

Indicates that the IBUS current has exceeded both the ILIM threshold (PPC

Current Limit Register (PPC_CURRENT_LIMIT)) and the IBUS_R2MIN1 thresh-

old settings (to cover the CC case) on the VBUS pin. This bit will be cleared

when written with “1” if the error condition has been removed or if the ERR bit

is cleared. This bit will cause ALERT to be asserted and the device to enter

the Error state.

R/W1C

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