USB2533 datasheet(37/61 Pages) SMSC

37 / 61 page

USB 2.0 Hi-Speed 3-Port Hub Controller

Datasheet

SMSC USB2533

Revision 1.0 (06-17-13)

DATASHEET

Table 7.6 OCS Status Register

Table 7.7 Upstream Battery Charger Mode Register

OCS_STAT

(0x30E6 - RESET= 0x00)

PORT POWER STATUS

BIT

NAME

R/W

DESCRIPTION

7:5

Reserved

4:1

OCS[4:1]

Optional control from SOC that indicates an over-current condition on the

corresponding port for HUB status reporting to USB host. Also resets

corresponding PRTPWR status bit in the Port Power Status Register. Not

required for an embedded application.

0: No Over Current Condition

1: Over Current Condition

Reserved

BC_CHG_MODE

(0x30EC - RESET= 0x00

UPSTREAM BATTERY CHARGER MODE

BIT

NAME

R/W

DESCRIPTION

7:6

Reserved

HoldVdat

R/W

Dead Battery Vdat Detect voltage source enable

0: The charger detection state machine will turn off the Vdat Source at the

end of the charger detection routine.

1: The charger detection state machine leave Vdat Source on during

Hub.Connect stage when a SDP has been detected.

Reserved

SE1ChrgDet

R/W

Apple type charger detection control

0: The charger detection routine will not look for the attachment of an

Apple type charger.

1: The charger detection routine will look for the attachment of an Apple

type charger.

EnhancedChrgDet

R/W

Enhanced charge detect control

0: The charger detection routine will not reverse Vdat SRC to differentiate

between a CDP and a DCP.

1: The charger detection routine will reverse Vdat SRC to differentiate

between a CDP and a DCP.

1:0

Reserved

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