USB4624 datasheet(47/68 Pages) SMSC

47 / 68 page

USB 2.0 HSIC Hi-Speed 4-Port Hub Controller

Datasheet

SMSC USB4624

Revision 1.0 (06-17-13)

DATASHEET

Table 7.14 Upstream (Port 0) Battery Charging Run Time Control Register

Table 7.15 Upstream (Port 0) Battery Charging Detect Register

BC_CTL_RUN_TIME

(0x6102- RESET=0x00)

UPSTREAM (PORT 0) BATTERY CHARGING RUN TIME

CONTROL REGISTER

BIT

NAME

R/W

DESCRIPTION

Reserved

Always read ‘0

SUSPENDN

R/W

Suspend enable. Forces upstream port into suspend

0: Suspend disabled

1: Suspend enabled

RESET

R/W

Reset enable. Forces upstream port into reset

0: Reset disabled

1: Reset enabled

USB2_FS_OEB

R/W

Output Enable (OE). Forces upstream port into output enable

0: OE disabled

1: OE enabled

RPD_DP_EN

R/W

Data plus resistor pull-down enable

0: Data plus pull-down disabled

1: Data plus pull-down enabled

RPD_DM_EN

R/W

Data minus resistor pull-down enable

0: Data minus pull-down disabled

1: Data minus pull-down enabled

1:0

XCVRSELECT

R/W

Transceiver Select. This field selects between the LS, FS and

HS transceivers.

2'b00: HS mode

2'b01: FS mode

2'b10: LS mode

2'b11: LS data-rate with FS rise/fall times (and EOP/IDLE)

Note:

Note: XCVRSELECT must change state only when

the device is not actively transmitting or receiving

BC_CTL_DET

(0x6103- RESET=0x00)

UPSTREAM (PORT 0) BATTERY CHARGING DETECT

BIT

NAME

R/W

DESCRIPTION

7:3

Reserved

Always read ‘0

USB2_BC_RXHI_EN

R/W

Enable pin for the Apple high current battery charger

detection.

USB2_BC_RXHI_DET

Output pin for the Apple high current battery charger detection.

When disabled this output will be low.

USB2_BC_BIAS_EN

R/W

When enabling USB2_IDAT_SINK_EN or

USB2_VDAT_SRC_EN of the Upstream (Port 0) Battery

Charging Control 1 Register, this register bit must be set to

enable the required current source.

USB4624 Datenblatt(PDF) 47 Page - SMSC Corporation

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