MOD-ENC28J60 development board
User's manual
All boards produced by Olimex are ROHS compliant
Document revision B, January 2015
Copyright(c) 2015, OLIMEX Ltd, All rights reserved
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 connector 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 2×5 pin header
–
PCB: FR-4, 1.5 mm (0,062"), soldermask, white silkscreen component print
–
Dimensions: 40×24 mm (1.55×0.95")
–
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
Page 2
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
Page 3
BLOCK DIAGRAM
Page 4
MEMORY MAP
Page 5
SCHEMATIC
+3.3V
+3.3V
+3.3V
L1
+3.3V
3.3V
C4
R1
100nF
100k
C1
C2
18pF
R4
R9
10K
10
CS
9
25
GND_
24
GND
23
22
25MHz
18pF
28
20
+3.3V
19
15
R2
14
2.2k/1%1
2
C5
C6
C7
C3
C8
21
11
10uF
49.9/1%
U1
RST
Q1
C9
FB/0805/600
18
100nF
R3
49.9/1%
LAN
#RESET
#CS
VDDOSC
OSC2
OSC1
VSSOSC
VDD
VDDPLL
VDDRX
VDDTX
RBIAS
VCAP
LEDA 27
LEDB 26
LEDA
TPOUT+
LEDB
TPIN+ 13
TPIN+
TPIN- 12
TPIN-
3
TPOUT-
2
LEDA
AG
KG
LEDB
TPOUT+
17
TPOUT16
1
AY
KY
TPOUT+
R5
TPOUT-
49.9/1%
TPIN+
7
6
SCK 8
SI
7
SCK
SO
MISO
6
R6
49.9/1%
TPIN-
8
MOSI
#WOL 5
WOL
#INT 4
CLKOUT
3
INT
R7
R8
1:1
TD+
TCT
AG
VSSTX
ENC28J60
75
75
AY
YELLOW
1:1
KY
RD+
SCK
MOSI
MISO
WOL
INT
10
9
8
7
6
3.3V
GND
RST
CS
CLKOUT
+3.3V
MOD-ENC28J60, board revision A
OLIMEX LTD, BULGARIA
https://www.olimex.com
3
7
8
6
RCT
RD-
1nF/2kV
RJLD-043TC1
C10
10nF
+3.3V
BH10S
LEDA
R10
1
2
3
4
WOL
INT
5
6
RST
MISO
7
8
MOSI
SCK
9
10
CS
NA
UEXT
1
2
3
4
5
1
4
5
2
GREEN
KG
VSS
VSSRX
75
TD-
CLKOUT
VSSPLL
75
BOARD LAYOUT
Page 7
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).
IMPORTANT: If the board has a quartz crystal rotated at 45 degrees relative to the pads provided
do not panic. This is normal. We have two types of such crystals – one of them requires 4 pads, the
other only 2 pads. That is why we have provided 4 pads to be able to fit both crystals. All boards
Olimex manufactures pass automatized optical inspection after assembly and obvious
misplacement like this is impossible to occur.
A tilted quartz crystal is not a sign
of a manufacturing error!
JUMPER DESCRIPTION
There are no jumpers on the board.
Page 8
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 9
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 10
MECHANICAL DIMENSIONS
All measures are in inches.
Page 11
AVAILABLE DEMO SOFTWARE
Please check the SOFTWARE section of the product page for a number of examples with different
boards. The web page for MOD-ENC28J60 is:
https://www.olimex.com/Products/Modules/Ethernet/MOD-ENC28J60/
Page 12
ORDER CODE
MOD-ENC28J60 – completely assembled and tested, includes ENC28J60 Ethernet controller
How to order?
You can purchase directly from our online shop or from any of our distributors. Note that usually it
might be faster and cheaper to purchase Olimex products from our distributors. List of confirmed
Olimex LTD distributors and resellers: https://www.olimex.com/Distributors
Please visit our web site www.olimex.com for more information.
REVISION HISTORY:
Board revision:
Board revision
Notable changes
B
Initial release of the board
Manual revision:
Document revision
Notable changes
Modified page
A
- Initial manual release
All
B, 23.01.15
- Cleared duplicate information
- Added clarification about the rotated quartz
crystal
- Formatting improvements
All
Page 13
Disclaimer:
© 2015 Olimex Ltd. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd.
Other product names may be trademarks of others and the rights belong to their respective owners.
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.
The hardware design of MOD-ENC28J60 is considered intellectual property of Olimex. The hardware
design files are considered copyright material and would not be distributed.
It is possible that the pictures in this manual differ from the latest revision of the board.
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.
This evaluation board/kit is intended for use for engineering development, demonstration, or
evaluation purposes only and is not considered by OLIMEX to be a finished end-product fit for
general consumer use. Persons handling the product must have electronics training and observe good
engineering practice standards. As such, the goods being provided are not intended to be complete in
terms of required design-, marketing-, and/or manufacturing-related protective considerations,
including product safety and environmental measures typically found in end products that
incorporate such semiconductor components or circuit boards.
Olimex currently deals with a variety of customers for products, and therefore our arrangement with
the user is not exclusive. Olimex assumes no liability for applications assistance, customer product
design, software performance, or infringement of patents or services described herein.
THERE IS NO WARRANTY FOR THE DESIGN MATERIALS AND THE COMPONENTS USED
TO CREATE MOD-ENC28J60. THEY ARE CONSIDERED SUITABLE ONLY FOR MODENC28J60.
Page 14
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