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SMSC LAN7500
USER MANUAL
Revision 1.0 (11-29-12)
EVB-LAN7500-LC Evaluation Board 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.
4K
µWire
EEPROM
SMSC
LAN7500
10/100/1000
Ethernet
Magnetics
USB
USB Type A
Connector
RJ45
Ethernet
EVB-LAN7500-LC
Figure 1.1 EVB-LAN7500-LC Block Diagram
1.1
References
Concepts and material available in the following documents may be helpful when using the EVB-
LAN7500-LC.
Table 1.1 References
DOCUMENT
LOCATION
http://www.smsc.com/lan7500
http://www.smsc.com/lan7500
http://www.smsc.com/lan7500
SMSC LAN7500 Datasheet
AN8-13 Suggested Magnetics
SMSC EVB-LAN7500-LC Evaluation Board
Schematic
Revision 1.0 (11-29-12)
2
SMSC LAN7500
USER MANUAL
EVB-LAN7500-LC Evaluation Board 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.
USB Type A
Connector
TP2
SMSC
LAN7500
TP3
TP1
RJ45 with
Integrated LEDs
LED1
Figure 2.1 EVB-LAN7500-LC Top View
2.1
LEDs
Table 2.1 LEDs
REFERENCE
LED1
Ethernet Full Duplex
Speed 1
SPD1
When combined with Speed 0, this signal indicates the current Ethernet link speed. Refer
to the SPD0 (Speed 0) description for additional information.
Note:
Speed 0
When combined with Speed 1, this signal indicates the current Ethernet link speed. The
speed is indicated as shown below:
SPEED (Mbps)
SPD0
No Link
10
100
1000
Note:
SPEED 0 (SPD0)
Off
On
Off
On
SPEED 1 (SPD1)
Off
Off
On
On
This LED is yellow and located inside the RJ45 conector.
INDICATION
This LED is green and located inside the RJ45 conector.
3
Revision 1.0 (11-29-12)
SMSC LAN7500
USER MANUAL
EVB-LAN7500-LC Evaluation Board User Manual
2.2
Test Points
Table 2.2 Test Points
TEST POINT
TP1
TP2
TP3
DESCRIPTION
Unpopulated nRESET testpoint
Unpopulated SW_MODE testpoint
Single pin populated gold post GND testpoint
CONNECTION
nRESET
SW_MODE
GND
2.3
System Connections
Table 2.3 System Connections
CONNECTOR
P1
J2
DESCRIPTION
USB Type-A Plug
RJ45
Molex 48037-0001
PART
Amphenol RJHSE-5381
2.4
Mechanicals
Figure 2.2
details the EVB-LAN7500-LC mechanical dimensions.
1.000
TOP VIEW
2.500
Figure 2.2 EVB-LAN7500-LC Mechanicals
Revision 1.0 (11-29-12)
4
SMSC LAN7500
USER MANUAL
EVB-LAN7500-LC Evaluation Board User Manual
3 User Manual Revision History
Table 3.1 Customer Revision History
REVISION LEVEL & DATE
Rev. 1.0
(11-29-12)
Rev. 1.0
(11-03-10)
SECTION/FIGURE/ENTRY
CORRECTION
Document co-branded: Microchip logo added, modification to legal disclaimer.
