USB3503 datasheet(28/73 Pages) MICROCHIP

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USB3503

DS00001584B-page 28

 2011-2015 Microchip Technology Inc.

5.3.26

Default = 0x00h

5.3.27

Default = 0x00h

Bit Number

Bit Name

Description

7:0

BC_EN

Battery Charging Enable: Enables the battery charging feature for the

corresponding downstream port.

‘0’ = Downstream Battery Charging support is not enabled.

‘1’ = Downstream Battery charging support is enabled

Bit 7= Reserved

Bit 6= Reserved

Bit 5= Reserved

Bit 4= Reserved

Bit 3= Port 3 Battery Charging Enable.

Bit 2= Port 2 Battery Charging Enable.

Bit 1= Port 1 Battery Charging Enable.

Bit 0= Reserved

Bit Number

Bit Name

Description

7:4

Reserved

Reserved.

3:1

PRTPWR[3:1]

Read Only.

Optional status to SOC indicating that power to the downstream port was

enabled by the USB Host for the specified port. Not required for an embedded

application.

This is a read-only status bit. Actual control over port power is implemented by

the USB Host, OCS register and Downstream Battery Charging logic if enabled.

See Section 8.1.2, "Special Behavior of PRTPWR Register," on page 48 for

more information.

0 = USB Host has not enabled port to be powered or in downstream battery

charging and corresponding OCS bit has been set.

1 = USB Host has enabled port to be powered

Reserved

Reserved.

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