UPD360 datasheet(180/221 Pages) MICROCHIP

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UPD360

DS00002084C-page 180

 2016-2017 Microchip Technology Inc.

12.5.6

PPC GENERAL CONFIGURATION 1 REGISTER (PPC_GENERAL_CFG1)

Address:

0411h

Size:

8 bits

Bits

Description

Type

Default

ALERT_MASK

Masks errors for all interrupts in the PPC Interrupt Status Register 1

(PPC_INT_STS1), except OVER_ILIM and TSD.

0: The ALERT bit in the PPC VBUS Port Status Register

(PPC_VBUS_PORT_STS) will be asserted if an error condition or indicator

even is detected.

1: The ALERT bit in the PPC VBUS Port Status Register

(PPC_VBUS_PORT_STS) will only assert if OVER_ILIM or TSD is detected.

R/W

ALERT_LINK

Links the ALERT bit in the PPC VBUS Port Status Register

(PPC_VBUS_PORT_STS) to be asserted when the LOW_CUR bit is

asserted.

0: The ALERT bit in the PPC VBUS Port Status Register

(PPC_VBUS_PORT_STS) will not be asserted if the LOW_CUR indicator bit

is asserted.

1: The ALERT bit in the PPC VBUS Port Status Register

(PPC_VBUS_PORT_STS) will be asserted if the LOW_CUR indicator bit is

asserted.

R/W

DISCHARGE

Forces the VBUS pin to be reset and discharged when the PPC is in the

Active state. Writing this bit to a logic “1” will cause the port power switch to be

opened and the discharge circuitry to activate to discharge VBUS. The port

power switch will remain open with the 100 ohm short to GND per the tDIS-

CHARGE time in the DISCHARGE_TIME_SEL[1:0] field. This bit is self-clear-

ing.

R/W

PWR_EN_SET

Controls whether the port power switch may be turned on or not and affects

the power state. This bit is OR’ed with the PWR_EN pin (standalone DFP

mode only). Thus, either the PWR_EN pin or this bit must be ‘1’ to enable the

port power switch.

R/W

3:2

DISCHARGE_TIME_SEL[1:0]

This field sets the tDISCHARGE time as follows:

00: 100 ms

01: 200 ms (default)

10: 300 ms

11: 400 ms

R/W

01b

1:0

RESERVED

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