USB2532 datasheet(16/60 Pages) SMSC

16 / 60 page

USB 2.0 Hi-Speed 2-Port Hub Controller

Datasheet

Revision 1.0 (06-17-13)

SMSC USB2532

DATASHEET

Port 1 Power

Output

PRTPWR1

Enables power to a downstream USB device

attached to Port 1.

0 = Power disabled on downstream Port 1

1 = Power enabled on downstream Port 1

Port 1 Control

PRTCTL1

OD8/IS

(PU)

When configured as PRTCTL1, this pin functions

as both the Port 1 power enable output

(PRTPWR1) and the Port 1 over-current sense

input (OCS1_N). Refer to the PRTPWR1 and

OCS1_N descriptions for additional information.

Port 1 Battery

Charging

Configuration

Strap

BC_EN1

This strap is used to indicate support of the

battery charging protocol on Port 1. Enabling

battery charging support allows a device on the

port to draw currents per the USB battery

charging specification.

0 = Battery charging is not supported on Port 1

1 = Battery charging is supported on Port 1

See Note 3.4 for more information on

configuration straps.

Port 2 Power

Output

PRTPWR2

Enables power to a downstream USB device

attached to Port 2.

0 = Power disabled on downstream Port 2

1 = Power enabled on downstream Port 2

Port 2 Control

PRTCTL2

OD8/IS

(PU)

When configured as PRTCTL2, this pin functions

as both the Port 2 power enable output

(PRTPWR2) and the Port 2 over-current sense

input (OCS2_N). Refer to the PRTPWR2 and

OCS2_N descriptions for additional information.

Port 2 Battery

Charging

Configuration

Strap

BC_EN2

This strap is used to indicate support of the

battery charging protocol on Port 2. Enabling

battery charging support allows a device on the

port to draw currents per the USB battery

charging specification.

0 = Battery charging is not supported on Port 2

1 = Battery charging is supported on Port 2

See Note 3.4 for more information on

configuration straps.

No Connect

These pins must be left floating for normal device

operation.

POWER

+3.3V Analog

Power Supply

VDDA33

+3.3V analog power supply. Refer to Chapter 4,

"Power Connections," on page 20 for power

connection information.

+3.3V Power

Supply

VDD33

+3.3V power supply. These pins must be

connected to VDDA33. Refer to Chapter 4,

"Power Connections," on page 20 for power

connection information.

Table 3.1 Pin Descriptions (continued)

NUM PINS

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION

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