SMSC EVB8700 Скачать руководство пользователя страница 2

LAN8700 Evaluation Board User Manual

Revision 1.0 (02-23-10)

USER MANUAL

SMSC LAN8700

2

 

1 Introduction

The SMSC LAN8700 is a low-power, variable I/O voltage, analog interface IC with HP Auto-MDIX
support for high-performance embedded Ethernet applications. The LAN8700 consists of an
encoder/decoder, scrambler/descrambler, wave-shaping transmitter, output driver, twisted-pair receiver
with adaptive equalizer and baseline wander (BLW) correction, and clock and data recovery functions. 

The EVB8700 is an Evaluation Board (EVB) that interfaces a standard 40-pin female MII connector
from an existing MAC controller to the SMSC LAN8700 Ethernet PHY, and out to an RJ45 Ethernet
Jack for 10/100 connectivity.

A simplified block diagram of the EVB8700 can be seen in 

Figure 1.1

.

1.1

  References

Concepts and material available in the following documents may be helpful when using the EVB8700.

Figure 1.1 EVB8700 Block Diagram

Table 1.1  References

DOCUMENT

LOCATION

SMSC LAN8700 Datasheet

http://www.smsc.com/lan8700

SMSC EVB8700 Evaluation Board Schematic

http://www.smsc.com/lan8700

AN16-12 LAN8700 User Application and Configuration Guide

http://www.smsc.com/lan8700

AN8-13 Suggested Magnetics

http://www.smsc.com/lan8700

10/100 

Ethernet 

Magnetics

SMSC 

LAN8700

EVB8700

Ethernet

RJ45

MII

40-pin 

Connector

MII Bus

Содержание EVB8700

Страница 1: ...n request SMSC products are not designed intended authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe...

Страница 2: ...0 pin female MII connector from an existing MAC controller to the SMSC LAN8700 Ethernet PHY and out to an RJ45 Ethernet Jack for 10 100 connectivity A simplified block diagram of the EVB8700 can be se...

Страница 3: ...header J2 Note Before connecting an external power supply to TP2 ensure power is not present on the MII connector s 5V pins Connecting 5V simultaneously via the MII connector and TP2 may result in per...

Страница 4: ...LT PHYAD4 MSB R11 populated R11 unpopulated PHYAD3 R46 unpopulated R48 populated R36 populated LED2 anode connected to FDUPLEX pin flipped R46 populated R48 unpopulated R36 unpopulated LED2 cathode co...

Страница 5: ...on on Power Down mode Table 2 3 MODE 2 0 Resistor Configuration MODE 2 0 MODE DEFINITIONS MODE 2 0 PULL DOWN RESISTORS R40 MODE2 R41 MODE1 R42 MODE0 000 10BASE T Half Duplex Auto negotiation disabled...

Страница 6: ...pulated R52 must be in the 2 3 position which routes TX_ER TXD4 to pin 11 of the J2 MII header For additional information on the functionality of the nINT TX_ER TXD4 pin refer to the LAN8700 Datasheet...

Страница 7: ...he nINTSEL configuration strap value Refer to Section 2 2 3 nINT TX_ER TXD4 Pin Configuration on page 6 for additional information 2 2 6 Switches Table 2 6 J2 2x14 MII Header Pinout HEADER PIN DESCRIP...

Страница 8: ...ard User Manual Revision 1 0 02 23 10 USER MANUAL SMSC LAN8700 8 2 3 Mechanicals Figure 2 2 details the EVB8700 mechanical dimensions Figure 2 2 EVB8700 Mechanicals 1 750 3 530 0 125 0 125 TOP VIEW 0...

Страница 9: ...tion Board User Manual SMSC LAN8700 USER MANUAL Revision 1 0 02 23 10 9 3 User Manual Revision History Table 3 1 Revision History REVISION LEVEL DATE SECTION FIGURE ENTRY CORRECTION Rev 1 0 02 23 10 I...

Страница 10: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip EVB8700...

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