USB3813 datasheet(41/68 Pages) SMSC

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USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications

Datasheet

SMSC USB3813

Revision 1.0 (06-17-13)

DATASHEET

Note: Refer to Section 8.9, "Interrupt Output (INT_N)," on page 56 for additional information on the

INT_N interrupt.

Table 7.9 Upstream Battery Charger Mode Register

BC_CHG_MODE

(0x30EC - RESET= 0x14

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

USB3813 Arkusz danych(PDF) 41 Page - SMSC Corporation