Microchip Technology EVB-LAN7500-LC Manuel utilisateur

SMSC LAN7500 Revision 1.0 (11-29-12)

USER MANUAL

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EVB-LAN7500-LC Evaluation Board

User Manual

EVB-LAN7500-LC Evaluation Board User Manual

Revision 1.0 (11-29-12) 2 SMSC LAN7500

USER MANUAL

1 Introduction

The LAN7500 is a high performance Hi-Speed USB 2.0 to 10/100/1000 Ethernet controller. With

applications ranging from embedded systems, set-top boxes, and PVR’s, to USB port replicators, USB

to Ethernet dongles and test instrumentation, the device is a high performance and cost competitive

USB to Ethernet connectivity solution.

The LAN7500 contains an integrated 10/100/1000 Ethernet MAC and PHY, Filtering Engine, USB PHY,

Hi-Speed USB 2.0 device controller, TAP controller, EEPROM controller, and a FIFO controller with a

total of 32 KB of internal packet buffering.

The internal USB 2.0 device controller and USB PHY are compliant with the USB 2.0 Hi-Speed

standard. The device implements Control, Interrupt, Bulk-in, and Bulk-out USB Endpoints.

The Ethernet controller supports auto-negotiation, auto-polarity correction, HP Auto-MDIX, and is

compliant with the IEEE 802.3, IEEE 802.3u, IEEE 802.3ab standards. ARP and NS offload is also

supported.

The EVB-LAN7500-LC is an Evaluation Board (EVB) that utilizes the LAN7500 to provide a fully

functional, bus-powered USB to Ethernet interface. The EVB-LAN7500-LC provides a fully integrated

Ethernet port and USB port via the onboard RJ45 and USB Type A connectors. The onboard 4K

EEPROM is used to load the EVB-LAN7500-LC’s USB configuration parameters and MAC address.

LAN7500 software drivers are available for Windows XP, Windows Vista, Mac OSX, Linux, and Win

CE. Additional manufacturing and diagnostic tools are available for debugging and external EEPROM

configuration.

A simplified block diagram of the EVB-LAN7500-LC can be seen in Figure 1.1.

1.1 References

Concepts and material available in the following documents may be helpful when using the EVB-

LAN7500-LC.

Figure 1.1 EVB-LAN7500-LC Block Diagram

Table 1.1 References

DOCUMENT LOCATION

SMSC LAN7500 Datasheet http://www.smsc.com/lan7500

AN8-13 Suggested Magnetics http://www.smsc.com/lan7500

SMSC EVB-LAN7500-LC Evaluation Board

Schematic

http://www.smsc.com/lan7500

SMSC

LAN7500

µWire

EEPROM

USB Type A

Connector

USB

Ethernet

10/100/1000

Ethernet

Magnetics

RJ45

EVB-LAN7500-LC

EVB-LAN7500-LC Evaluation Board User Manual

SMSC LAN7500 3 Revision 1.0 (11-29-12)

USER MANUAL

2 Board Details

The following sections describe the various board features. A top view of the EVB-LAN7500-LC is

shown in Figure 2.1.

2.1 LEDs

Figure 2.1 EVB-LAN7500-LC Top View

Table 2.1 LEDs

REFERENCE INDICATION

LED1 Ethernet Full Duplex

SPD1

Speed 1

When combined with Speed 0, this signal indicates the current Ethernet link speed. Refer

to the SPD0 (Speed 0) description for additional information.

Note: This LED is yellow and located inside the RJ45 conector.

SPD0

Speed 0

When combined with Speed 1, this signal indicates the current Ethernet link speed. The

speed is indicated as shown below:

Note: This LED is green and located inside the RJ45 conector.

USB Type A

Connector

SMSC

LAN7500

RJ45 with

Integrated LEDs

TP3 TP1TP2

LED1

SPEED (Mbps) SPEED 0 (SPD0) SPEED 1 (SPD1)

No Link Off Off

10 On Off

100 Off On

1000 On On

EVB-LAN7500-LC Evaluation Board User Manual

Revision 1.0 (11-29-12) 4 SMSC LAN7500

USER MANUAL

2.2 Test Points

2.3 System Connections

2.4 Mechanicals

Figure 2.2 details the EVB-LAN7500-LC mechanical dimensions.

Table 2.2 Test Points

TEST POINT DESCRIPTION CONNECTION

TP1 Unpopulated nRESET testpoint nRESET

TP2 Unpopulated SW_MODE testpoint SW_MODE

TP3 Single pin populated gold post GND testpoint GND

Table 2.3 System Connections

CONNECTOR DESCRIPTION PART

P1 USB Type-A Plug Molex 48037-0001

J2 RJ45 Amphenol RJHSE-5381

Figure 2.2 EVB-LAN7500-LC Mechanicals

2.500

1.000

TOP VIEW

EVB-LAN7500-LC Evaluation Board User Manual

SMSC LAN7500 5 Revision 1.0 (11-29-12)

USER MANUAL

3 User Manual Revision History

Table 3.1 Customer Revision History

REVISION LEVEL & DATE SECTION/FIGURE/ENTRY CORRECTION

Rev. 1.0

(11-29-12)

Document co-branded: Microchip logo added, modification to legal disclaimer.

Rev. 1.0

(11-03-10)

Initial release.

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Microchip:

EVB-LAN7500-LC

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