USB3503 datasheet(38/82 Pages) SMSC

38 / 82 page

USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications

Datasheet

SMSC USB3503A

Revision 1.1 (02-07-13)

DATASHEET

5.3.31

Default = 0x00h

HubSuspInt

Read:

1 = Hub has entered USB suspend

0 = Hub has not entered USB suspend since last HubSuspInt reset

Write:

1 = No Effect

0 = Negate HubSuspInt status low

HubCfgInt

Read:

1 = Hub has been configured by USB Host

0 = Hub has not been configured by USB Host since last HubConfInt reset

Write:

1 = No Effect

0 = Negate HubConfInt status low

PrtPwrInt

Read:

1 = Port Power register has been updated

0 = Port Power register has not been updated since last PrtPwrInt reset

Write:

1 = No Effect

0 = Negate PrtPwrInt status low

1:0

Reserved

BIT NUMBER

BIT NAME

DESCRIPTION

7:5

Reserved

HubSuspMask 1 = INT_N pin is asserted low when Hub enters suspend

0 = INT_N pin is not affected by Hub entering suspend

HubCfgMask

1 = INT_N pin is asserted low when Hub configured by USB Host

0 = INT_N pin is not affected by Hub configuration event

PrtPwrMask

1 = INT_N pin is asserted low when Port Power register has been updated by

USB Host

0 = INT_N pin is not affected by Port Power register

1:0

Reserved

BIT NUMBER

BIT NAME

DESCRIPTION

USB3503 Datasheet(PDF) 38 Page - SMSC Corporation

USB3503 Datasheet(HTML) 38 Page - SMSC Corporation

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