EVB-LAN9252-ADD-ON
FOR BECKHOFF EL9800
USER’S GUIDE
2015 Microchip Technology Inc.
DS50002356B-page 11
Chapter 1. Overview
1.1
INTRODUCTION
The LAN9252 is a 2-port EtherCAT
®
Slave Controller (ESC) with dual-integrated Ether-
net PHYs which each contain a full-duplex 100BASE-TX transceiver and support
100Mbps (100BASE-TX) operation. 100BASE-FX is supported via an external fiber
transceiver.
The EtherCAT module implements a 3 port EtherCAT slave controller with 4K bytes of
Dual Port memory (DPRAM), 4 SyncManagers, 3 Fieldbus Memory Management Units
(FMMUs) and a 64-bit Distributed Clock.
This document details the various sections of the EVB-LAN9252-ADD-ON, which is
designed to be used as an add-on board (ESC board) with the Beckhoff EL9800 Eth-
erCAT Evaluation Board.
This board supports the SPI and DIGIO PDI modes of the LAN9252 board, combining
a LAN9252 EtherCAT Slave Controller, two RJ45 1x1 Tab-DOWN with LEDs, 8-pin
integrated magnetics connector (ICM), and a PDI-Connector on a printed circuit board.
A simplified block diagram of the EVB-LAN9252-ADD-ON is displayed in
FIGURE 1-1:
EVB-LAN9252-ADD-ON BLOCK DIAGRAM
Microchip
LAN9252
Power
Module
EVB-LAN9252-ADD-ON
100BASE-TX
Ethernet
Magnetics &
RJ45
100BASE-TX
Ethernet
Magnetics &
RJ45
RST/
LEDs
Port 0
Port 1
Ethernet
Ethernet
SPI/DIGIO
Selection
EEPROM
Crystal
5V
Board to Board Connector
(To Beckhoff EL9800)
