Olimex MOD-ENC28J60 User guide

MOD-ENC28J60 development board

Users Manual

All boards produced by Olimex are ROHS compliant

Rev. Initial, November 2008

Page 1

INTRODUCTION

MOD-ENC28J60 is development board with UEXT connector and 10 Mbit

ENC28J60 ethernet controller from Microchip Technology Inc.

BOARD FEATURES

– MOD-ENC28J60 is the easiest way to add 10 Mbit ethernet connectivity to any

of our boards with UEXT connector

– ENC28J60 Ethernet controller with UEXT connector for easy connection to our

other development boards with UEXT connector

– LAN connecttor with build in transformer

– two status LEDs on LAN connector

– SPI interface takes only few pins to add Ethernet interface to your

microcontroller project

– UEXT 10 pin interface on 0.1" row pins header

– backward compatibility with ENC28J60-H with 2 x 5 pin header

– PCB: FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print

– Dimensions: 40x24 mm (1.55 x 0.95")

– space between the pin rows: 20 mm (0.8")

ELECTROSTATIC WARNING

The MOD-ENC28J60 board is shipped in protective anti-static packaging. The board must not be subject to high electrostatic potentials. General practice for working with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS

Hardware: Our development boards PIC-WEB and PIC-MINI-WEB use ENC28J60

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Ethernet Controller Features

MOD-ENC28J60 board use ENC28J60 stand-alone ethernet controller with these

features:

– IEEE 802.3. Compatible Ethernet Controller

– Fully Compatible with 10/100/1000Base-T Networks

– Integrated MAC and 10Base-T PHY

– Supports One 10Base-T Port with Automatic Polarity Detection and Correction

– Supports Full and Half-Duplex modes

– Programmable Automatic Retransmit on Collision

– Programmable Padding and CRC Generation

– Programmable Automatic Rejection of Erroneous Packets

– SPI Interface with Clock Speeds Up to 20 MHz

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BLOCK DIAGRAM

Page 4

MEMORY MAP

Page 5

SCHEMATIC

Page 6

18pF

10uF

100nF

100 nF

100nF

10nF

FB/0805/6 00

RJL D-043TC1

+3. 3V+3. 3V

+3. 3V

25MHz

100k

2.2 k/1 %

49.9/1%

180

10K

NA

ENC28J60

BH10S

3.3V

CLKOUT

CLKOUTCSCSCSGND

INT

LEDA

LED A

LEDB

MISO

MOSI

RST

SCK

TPIN +

TPIN -

TPOUT +

TPOUT+

TPOUT-

TPOUT -

WOL

12345 6

789

10

C1

C2

C3

C4

C5 C6 C7 C8

C9

C10

L1

AGAGAYAYKGKGKYKYRCT6RD+7RD-

8

TCT3TD+1TD-

2

75 75

1nF/2k V

145

2

378

6

GREEN

YELLOW

LAN

GND

GND_

Q1

R1

R2

R3

R4

R5

R6

R7

R8

R9

R10

#CS

9

#INT

4

#RESET

10

#WOL

5

CLKOUT

3

LEDA27LEDB

26

OSC123OSC2

24

RBIAS

14

SCK

8SI7SO6

TPIN+

13

TPIN-

12

TPOUT+

17

TPOUT-

16

VCAP

1

VDD

28

VDDOSC

25

VDDPLL20VDDRX19VDDTX

15

VSS

2

VSSO SC

22

VSS PLL21VSSRX11VSSTX

18

U1

1 2

3 4

5 6

7 8

9 10

UEXT

MOD-ENC28J60

Rev . Initia l

COPYRI GHT(C) 2 00 8, OL IMEX LTD

htt p:/ /www.o limex.co m/dev

+

RJ45 SIDE

1:1

BOARD LAYOUT

POWER SUPPLY CIRCUIT

MOD-ENC28J60 is typically power supplied by UEXT pin 1 and pin 2 and by EXT pin 10 and pin 9.

RESET CIRCUIT

MOD-ENC28J60 reset circuit includes pin 6 of UEXT connector, pin 10 of U1 and R9 (10k).

CLOCK CIRCUIT

Quartz crystal 25 MHz is connected to ENC28J60 pin 23 (OSC1) and pin24 (OSC2).

JUMPER DESCRIPTION

There are no jumpers on this board.

Page 7

CONNECTOR DESCRIPTIONS

UEXT

Pin # Signal Name

1 3.3V

2 GND

3 LEDA

4 WOL

5 INT

6 RST

7 MISO

8 MOSI

9 SCK

10 CS

LAN

Pin # Signal Name Chip Side Pin # Signal Name Chip Side

1 TX+ 5 Not Connected (NC)

2 TX- 6 VDD

3 VDD 7 RX+

4 Not Connected (NC) 8 RX-

LED Color Usage

Right Green Link status

Left Yellow Activity status

Page 8

EXT

Pin# Signal Name Pin# Signal Name

1 SCK 6 CLKOUT

2 MOSI 7 CS

3 MISO 8 RST

4 WOL 9 GND

5 INT 10 3.3V

Page 9

MECHANICAL DIMENSIONS

All measures are in inches.

Page 10

AVAILABLE DEMO SOFTWARE

• Microchip's TCP-IP stack full featured TCP-IP stack, very easy to configure

and use with PIC microcontrollers.

• AVR fans now have also demo code for driving ENC28J60 with Bascom

thanks to Ben Zijlstra from Netherlands

• uIP1.0 demo code with LPC-P2106 and ENC28J60-H for CrossWorks

written by Iain Derrington

Page 11

ORDER CODE

MOD-ENC28J60 – completely assembled and tested, includes ENC28J60 Ethernet controller

How to order? You can order to us directly or by any of our distributors. Check our web www.olimex.com/dev for more info.

Revision history:

REV. Initial - create November 2008

Page 12

Disclaimer:

The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products.

Neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder.

The product described in this document is subject to continuous development and improvements. All particulars of the product and its use contained in this document are given by OLIMEX in good faith. However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded.

This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.

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