USB3300-EZK(2005) Просмотр технического описания (PDF) - SMSC -> Microchip

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USB3300-EZK
(Rev.:2005)

Hi-Speed USB Host or Device PHY with ULPI Low Pin Interface

SMSC -> Microchip 

Hi-Speed USB Host or Device PHY with ULPI Low Pin Interface

Multi-Port Applications

To support multiple ports a single USB3300 host can be combined with one of SMSC’s many hub

products to expand the number of ports. SMSC has 2-port, 3-port, 4-port, and 7-port hub designs which

can be used to expand the number of ports in a design.

DIR

NXT

STP

CLOCK

DATA[7]

DATA[6]

DATA[5]

DATA[4]

DATA[3]

DATA[2]

DATA[1]

DATA[0]

SOC w/

ULPI Link

DIR

NXT

STP

CLOCK

DATA[7]

DATA[6]

DATA[5]

DATA[4]

DATA[3]

DATA[2]

DATA[1]

DATA[0]

CPEN

DP

DM

USB3300

VBUS_DET

USBDP0

USBDM0

USBDP1

USBDN1

USBDP2

USBDN2

USB2502

USBDP3

USBDN3

USB2503

USBDP4

USBDN4

USB2504

USBDP5-7

USBDN5-7

USB2507

USB Port 1

DP

DM

USB Port 2

DP

DM

USB Port 3

DP

DM

USB Port 4

DP

DM

USB Ports 5-7

DP

DM

Figure 6 Expanding Downstream Ports for USB3300 Host Applications

Using a SMSC hub to expand the number of ports allows a single Link to run several USB devices

without a separate Link to support each USB port. Another advantage of using a SMSC hub is on

products where the main board is not located near the USB ports. The USB3300 can be placed on

the main board with the Link ASIC and the hub can be placed on a separate board next to the USB

ports. The only data connection required between the boards is DP and DM.

The CPEN output of the USB3300 is optional and can be used to turn the Hub on or off to lower current

when the USB connection isn’t needed.

Evaluation Board

An evaluation board, EVB-USB3300, is available for building a prototype system with the USB3300.

The evaluation board provides an industry standard T&MT connector to interface a ULPI Link controller

and a Mini-AB connector for the USB cable. A 500mA fault protected 5V Vbus switch that is controlled

by the USB3300 is also included.

Supporting Documentation

■ Universal Serial Bus Specification, Revision 2.0, April 27, 2000

■ On-The-Go Supplement to the USB 2.0 Specification, Revision 1.0a, June 24, 2003

■ USB 2.0 Transceiver Macrocell Interface (UTMI) Specification, Version 1.02, May 27, 2000

■ UTMI+ Specification, Revision 1.0, February 2, 2004

■ UTMI+ Low Pin Interface (ULPI) Specification, Revision 1.1

Revision 1.02 (02-16-05)

10

PRODUCT PREVIEW

SMSC USB3300

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