Microchip Technology AC164123 Data Sheet

Atlanta (770) 640-0034
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Australia - Sydney 61-2-9868-6733
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Austria - Wels 43-7242-2244-3910
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France - Paris 33-1-69-53-63-20
Germany - Munich 49-89-627-144-0
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Spain - Madrid 34-91-708-08-90
UK - Wokingham 44-118-921-5869

                                      As of 06/08/06

*DS51602B*

The Microchip name and logo, the Microchip logo, PIC and PICmicro are registered trademarks of Microchip Technology Incorporated in the U.S.A.
and other countries. In-Circuit Serial Programming, ICSP, PICDEM and PICtail are trademarks of Microchip Technology Incorporated in the U.S.A. 
and other countries. All other trademarks mentioned herein are property of their respective companies. © 2006, Microchip Technology Incorporated, 
Printed in the U.S.A. All Rights Reserved. 7/06

To obtain the most recent and complete documentation for this demonstration board, including:
- User's Guide

- Board Description

- Board Schematics

- Source Code

- Application Examples

- Links to Web Seminars

please refer to the web sites:  

DS51602B

The Microchip TCP/IP stack and other firmware examples can be downloaded from 

, then select "TCP/IP Stack", or go directly to 

. Make sure to download the firmware version that has 

been designated for the Explorer 16 development board.

The Ethernet PICtail™ Plus Daughter Board is an Ethernet demonstration board for evaluating 
Microchip Technology's ENC28J60 stand-alone 10Base-T Ethernet controller. It is an expansion 
board compatible with the Explorer 16 development board.

•  ENC28J60 Ethernet Controller with 25 MHz oscillator and integrated, magnetic RJ-45 connector 

(see device data sheet, DS39662, for additional information)

•  PICtail™ Plus Daughter Board connection interface

To get started, an Explorer 16 development board is required. All Explorer 16 development boards 
are shipped with connector J5 installed. The Ethernet PICtail Plus Daughter Board should be 
inserted into the top most socket of J5. The orientation of the Ethernet PICtail Plus Daughter Board 
should be such that the RJ-45 socket points toward the prototyping area on the Explorer 16 
development board. It is possible to insert the Ethernet PICtail Plus Daughter Board into the 
second top most socket of J5 and use the second SPI module; however, pin remapping in the 
example firmware will be required.

SCK
SO
SI

I

RD14/U1CTS_E

SPI Chip Select

I

RF6/SCK1

SPI Clock

O

RF7/SDI1_E

SPI Data Out from ENC28J60

RF8/SDO1_E

SPI Data In to ENC28J60

I

O

RE9/INT2

CS 

INT

INT Interrupt Signal

For evaluation purposes, each Ethernet PICtail Plus Daughter Board comes with a board 
number which can be used to form a unique MAC address. This number can be found on the 
sticker label on each board. To form a MAC address, replace the last 3 bytes of the following 
MAC address, 00-04-A3-XX-XX-XX, with the number from the sticker. The number on the 
sticker is in decimal format and conversion to a hex number is required. For example, if the 
sticker has the value of "12345", then the MAC address would be 00-04-A3-00-30-39.

Please see reverse side for schematic.

Note: Input signal, RESET, is optional. Install R10 with a 180 ohm resistor to use this signal. The
corresponding pin on the Explorer 16 development board is RD15/U1RTS_E.