USB2533 datasheet(36/61 Pages) SMSC

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USB 2.0 Hi-Speed 3-Port Hub Controller

Datasheet

Revision 1.0 (06-17-13)

SMSC USB2533

DATASHEET

Table 7.4 Upstream Custom Battery Charger Status Register

Table 7.5 Port Power Status Register

UP_CUST_BC_STAT

(0x30E4 - RESET= 0x00)

UPSTREAM CUSTOM BATTERY CHARGING STATUS

BIT

NAME

R/W

DESCRIPTION

7:4

Reserved

RxHiCurr

DM high current Apple charger output

0: DM signal is not above the VSE_RXH threshold

1: DM signal is above the VSE_RXH threshold

DmSeRx

DM Single Ended Receiver Status

DpSeRx

DP Single Ended Receiver Status

VdatDet

Vdat detect

0: Vdat not detected

1: Vdat detect comparator output

PORT_PWR_STAT

(0x30E5 - RESET= 0x00)

PORT POWER STATUS

BIT

NAME

R/W

DESCRIPTION

7:5

Reserved

4:1

PRTPWR[4:1]

Optional status to SOC indicating that power to the corresponding

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 Status Register and Downstream

Battery Charging logic, if enabled.

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

USB2533 Datenblatt(PDF) 36 Page - SMSC Corporation

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