
- •Ethernet Controller Features
- •Buffer
- •Physical Layer (PHY) Features
- •Operational
- •Package Types
- •Table of Contents
- •Most Current Data Sheet
- •Errata
- •Customer Notification System
- •1.0 Overview
- •FIGURE 1-1: ENC28J60 Block Diagram
- •FIGURE 1-2: Typical ENC28J60 Based Interface
- •2.0 External Connections
- •2.1 Oscillator
- •FIGURE 2-1: Crystal Oscillator Operation
- •2.3 CLKOUT Pin
- •FIGURE 2-3: CLKOUT Transition
- •2.4 Magnetics, Termination and Other External Components
- •FIGURE 2-4: ENC28J60 Ethernet Termination and External Connections
- •2.5 I/O Levels
- •2.6 LED Configuration
- •3.0 Memory Organization
- •3.1 Control Registers
- •3.1.1 ECON1 Register
- •3.1.2 ECON2 Register
- •Register 3-2: ECON2: Ethernet Control Register 2
- •3.2 Ethernet Buffer
- •3.2.1 Receive Buffer
- •3.2.2 Transmit Buffer
- •3.2.3 Reading and Writing to the Buffer
- •3.2.4 DMA Access to the Buffer
- •FIGURE 3-2: Ethernet Buffer Organization
- •3.3 PHY Registers
- •3.3.1 Reading PHY Registers
- •3.3.2 Writing PHY Registers
- •3.3.3 Scanning a PHY Register
- •Register 3-3: MICMD: MII Command Register
- •3.3.4 PHSTAT Registers
- •3.3.5 PHID1 and PHID2 Registers
- •4.0 Serial Peripheral Interface (SPI)
- •4.1 Overview
- •FIGURE 4-2: SPI Output Timing
- •4.2 SPI Instruction Set
- •4.2.1 Read Control Register Command
- •FIGURE 4-3: Read Control Register Command Sequence (ETH Registers)
- •FIGURE 4-4: Read Control Register Command Sequence (MAC and MII Registers)
- •4.2.2 Read Buffer Memory Command
- •4.2.3 Write Control Register Command
- •FIGURE 4-5: Write Control Register Command Sequence
- •4.2.4 Write Buffer Memory Command
- •4.2.5 Bit Field Set Command
- •4.2.6 Bit Field Clear Command
- •FIGURE 4-6: Write Buffer Memory Command Sequence
- •4.2.7 System Reset Command
- •FIGURE 4-7: System Reset Command Sequence
- •5.0 Ethernet Overview
- •5.1 Packet Format
- •5.1.2 Destination Address
- •5.1.3 Source Address
- •5.1.4 Type/Length
- •5.1.5 Data
- •5.1.6 Padding
- •6.0 Initialization
- •6.1 Receive Buffer
- •6.2 Transmit Buffer
- •6.3 Receive Filters
- •6.4 Waiting for OST
- •6.5 MAC Initialization Settings
- •Register 6-3: MACON4: MAC Control Register 4
- •Register 6-4: MABBIPG: MAC Back-to-back Inter-packet GAP Register
- •6.6 PHY Initialization Settings
- •7.0 Transmitting and Receiving Packets
- •7.1 Transmitting Packets
- •7.2 Receiving Packets
- •7.2.1 Enabling Reception
- •7.2.2 Receive Packet Layout
- •FIGURE 7-3: Sample Receive Packet Layout
- •7.2.3 Reading Received Packets
- •EXAMPLE 7-1: Random Access Address Calculation
- •7.2.4 Freeing Receive Buffer Space
- •7.2.5 Receive Buffer Free Space
- •EXAMPLE 7-2: Receive Buffer Free Space Calculation
- •8.0 Receive Filters
- •Register 8-1: ERXFCON: Ethernet RECEIVE FILTER CONTROL REGISTER
- •FIGURE 8-1: Receive Filtering Using OR Logic
- •FIGURE 8-2: Receive Filtering Using AND Logic
- •8.1 Unicast Filter
- •8.2 Pattern Match Filter
- •FIGURE 8-3: Sample Pattern Match Format
- •8.3 Magic Packet™ Filter
- •FIGURE 8-4: SAMPLE MAGIC PACKET™ Format
- •8.4 Hash Table Filter
- •8.5 Multicast Filter
- •8.6 Broadcast Filter
- •9.0 Duplex Mode Configuration and Negotiation
- •10.0 Flow Control
- •FIGURE 10-1: Sample Full-Duplex Network
- •Register 10-1: EFLOCON: Ethernet Flow Control Register
- •TABLE 10-1: Summary of Registers Used with Flow Control
- •11.0 Reset
- •FIGURE 11-1: On-Chip Reset Circuit
- •11.2 System Reset
- •11.3 Transmit Only Reset
- •11.4 Receive Only Reset
- •11.5 PHY Subsystem Reset
- •Register 11-1: PHCON1: PHY Control Register 1
- •12.0 Interrupts
- •FIGURE 12-1: ENC28J60 Interrupt Logic
- •12.1 INT Interrupt Enable (INTIE)
- •12.1.1 INT Interrupt Registers
- •Register 12-1: ESTAT: Ethernet Status Register
- •Register 12-2: EIE: Ethernet Interrupt Enable Register
- •Register 12-3: EIR: Ethernet Interrupt Request (Flag) Register
- •Register 12-4: PHIE: PHY Interrupt Enable Register
- •Register 12-5: PHIR: PHY Interrupt Request (Flag) Register
- •12.1.2 Receive Error Interrupt Flag (RXERIF)
- •12.1.3 Transmit Error Interrupt Flag (TXERIF)
- •12.1.4 Transmit Interrupt Flag (TXIF)
- •12.1.5 Link Change Interrupt Flag (LINKIF)
- •12.1.6 DMA Interrupt Flag (DMAIF)
- •12.1.7 Receive Packet Pending Interrupt Flag (PKTIF)
- •12.2.1 Setup Steps for Waking Up on a Magic Packet
- •13.0 Direct Memory Access Controller
- •13.1 Copying Memory
- •13.2 Checksum Calculations
- •TABLE 13-1: Summary of Registers Associated with the DMA Controller
- •14.0 Power-Down
- •TABLE 14-1: Summary of Registers Used with Power-Down
- •Register 15-1: EBSTCON: Ethernet SELF-TEST CONTROL REGISTER
- •15.1 Using the BIST
- •15.2 Random Data Fill Mode
- •15.3 Address Fill Mode
- •15.4 Pattern Shift Fill Mode
- •16.0 Electrical Characteristics
- •Absolute Maximum Ratings
- •16.1 DC Characteristics: ENC28J60 (Industrial and Commercial)
- •TABLE 16-1: AC Characteristics: ENC28J60 (Industrial and Commercial)
- •TABLE 16-2: Oscillator Timing Characteristics
- •TABLE 16-3: Reset AC Characteristics
- •TABLE 16-4: CLKOUT Pin AC Characteristics
- •TABLE 16-5: Requirements for External Magnetics
- •FIGURE 16-2: SPI Output Timing
- •TABLE 16-6: SPI Interface AC Characteristics
- •17.0 Packaging Information
- •17.1 Package Marking Information
- •17.2 Package Details
- •Appendix A: Revision History
- •Revision A (January 2006)
- •Revision B (July 2006)
- •Revision C (January 2008)
- •Revision D (July 2012)
- •Revision E (November 2012)
- •The Microchip Web Site
- •Customer Change Notification Service
- •Customer Support
- •Reader Response
- •INDEX
- •Product Identification System
- •Worldwide Sales and Service

ENC28J60
17.0PACKAGING INFORMATION
17.1Package Marking Information
28-Lead SPDIP
XXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXX
YYWWNNN
28-Lead SOIC
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXX
YYWWNNN
28-Lead SSOP
XXXXXXXXXXXX
XXXXXXXXXXXX
YYWWNNN
28-Lead QFN
XXXXXXXX
XXXXXXXX
YYWWNNN
Example
ENC28J60-I/SP e3
1210017
Example
ENC28J60-I/SO e3 1210017
Example
ENC28J60 /SS e3
1210017
Example
ENC28J60 -I/ML e3 1210017
Legend: XX...X |
Customer-specific information |
Y |
Year code (last digit of calendar year) |
YY |
Year code (last 2 digits of calendar year) |
WW |
Week code (week of January 1 is week ‘01’) |
NNN |
Alphanumeric traceability code |
e3 |
Pb-free JEDEC designator for Matte Tin (Sn) |
*This package is Pb-free. The Pb-free JEDEC designator (e3 ) can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information.
2006-2012 Microchip Technology Inc. |
. |
DS39662E-page 83 |

ENC28J60
17.2Package Details
The following sections give the technical details of the packages.
! " 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4
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* , 1
DS39662E-page 84 |
. |
2006-2012 Microchip Technology Inc. |

ENC28J60
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
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2006-2012 Microchip Technology Inc. |
. |
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DS39662E-page 85 |

ENC28J60
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
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DS39662E-page 86 |
. |
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2006-2012 Microchip Technology Inc. |

ENC28J60
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
2006-2012 Microchip Technology Inc. |
. |
DS39662E-page 87 |

ENC28J60
#$% &' %
! " 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4
D
N
E
E1
1 2
b
NOTE 1
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6 &! |
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3 & 9 & |
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9 # > #& |
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1 ,2 1 ! ' ! &$& " ! * * & "& & ! .32 % ' ! ( "!" * & "& & ( % % ' & " ! !
* ,-1
DS39662E-page 88 |
. |
2006-2012 Microchip Technology Inc. |

ENC28J60
Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging
2006-2012 Microchip Technology Inc. |
. |
DS39662E-page 89 |

ENC28J60
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DS39662E-page 90 |
. |
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2006-2012 Microchip Technology Inc. |

ENC28J60
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2006-2012 Microchip Technology Inc. |
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DS39662E-page 91 |

ENC28J60
( ) * ! + ,-.-()!
/ # '&& 0 + #
! " 3 & ' !& " & 4 # * !( ! ! & 4 % & & # & && 255*** ' '5 4
DS39662E-page 92 |
. |
2006-2012 Microchip Technology Inc. |