USB2532 datasheet(40/60 Pages) SMSC

40 / 60 page

USB 2.0 Hi-Speed 2-Port Hub Controller

Datasheet

Revision 1.0 (06-17-13)

SMSC USB2532

DATASHEET

Table 7.12 Upstream (Port 0) Battery Charging Control 1 Register

BC_CTL_1

(0x6100- RESET=0x00)

UPSTREAM (PORT 0) BATTERY CHARGING CONTROL 1

BIT

NAME

R/W

DESCRIPTION

USB2_IDP_SRC_EN

R/W

AFE 10uA IDP_SRC current source Enable

0: Disabled (Hi Z)

1: Enabled

USB2_VDAT_SRC_EN

R/W

AFE 0.6V VDATA_SRC voltage source Enable

0: Disabled (Hi Z)

1: Enabled

USB2_HOST_CHRG_EN

R/W

Enable charging host port mode

0: Portable Device

1: Charging Host port.

When the charging host port is bit is set, the connections of

VDATA_SRC, IDAT_SINK, IDP_SRC, VDAT_DET are reversed

between DP and DM

USB2_IDAT_SINK_EN

R/W

AFE 100uA current sink and the VDAT_DET comparator Enable

0: Disabled (Hi Z)

1: Enabled

USB2_VDAT_DET

VDAT_DET comparator output

0: No voltage detected

1: Voltage detected (a possible charger or a

device)

USB2_BC_DP_RDIV_EN

R/W

AFE Battery Charging Resistor Divider Enable – DP.

0: Disables resistor divider on DP.

1: Enables 2.7V voltage reference on DP through use of

9.7K/48.5K resistor divider.

USB2_BC_DM_RDIV_E

R/W

AFE Battery Charging Resistor Divider Enable – DM.

0: Disables resistor divider on DM.

1: Enables 2.0V voltage reference on DM through use of

29.1K/48.5K resistor divider.

USB2_DP_DM_SHORT_

R/W

Sets the port into China battery charger mode.

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