Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Скачиваний:
2
Добавлен:
18.07.2023
Размер:
1.3 Mб
Скачать

ENC28J60

Stand-Alone Ethernet Controller with SPI Interface

Ethernet Controller 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

Buffer

8-Kbyte Transmit/Receive Packet Dual Port SRAM

Configurable Transmit/Receive Buffer Size

Hardware Managed Circular Receive FIFO

Byte-Wide Random and Sequential Access with Auto-Increment

Internal DMA for Fast Data Movement

Hardware Assisted Checksum Calculation for Various Network Protocols

Medium Access Controller (MAC)

Features

Supports Unicast, Multicast and Broadcast Packets

Programmable Receive Packet Filtering and Wake-up Host on Logical AND or OR of the Following:

-Unicast destination address

-Multicast address

-Broadcast address

-Magic Packet™

-Group destination addresses as defined by 64-bit Hash Table

-Programmable Pattern Matching of up to 64 bytes at user-defined offset

Physical Layer (PHY) Features

Loopback mode

Two Programmable LED Outputs for LINK, TX, RX, Collision and Full/Half-Duplex Status

Operational

Six Interrupt Sources and One Interrupt Output Pin

25 MHz Clock Input Requirement

Clock Out Pin with Programmable Prescaler

Operating Voltage of 3.1V to 3.6V (3.3V typical)

5V Tolerant Inputs

Temperature Range: -40°C to +85°C Industrial, 0°C to +70°C Commercial (SSOP only)

28-Pin SPDIP, SSOP, SOIC, QFN Packages

Package Types

28-Pin SPDIP, SSOP, SOIC

 

VCAP

 

 

 

1

 

28

 

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSS

 

 

 

 

 

 

2

 

27

 

 

 

 

 

 

 

LEDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLKOUT

 

 

 

 

 

3

 

26

 

 

 

 

 

 

 

LEDB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INT

 

 

 

 

 

4

ENC28J60

25

 

 

 

 

 

 

 

VDDOSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC(1)

 

 

 

 

 

5

24

 

 

 

 

 

 

 

OSC2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SO

 

 

 

6

23

 

 

 

 

 

 

 

OSC1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SI

 

 

 

 

 

 

7

22

 

 

 

 

 

 

 

VSSOSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCK

 

 

 

 

 

 

8

21

 

 

 

 

 

 

 

VSSPLL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS

 

 

 

9

20

 

 

 

 

 

 

 

VDDPLL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

 

 

10

 

19

 

 

 

 

 

 

 

VDDRX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSSRX

 

 

 

11

 

18

 

 

 

 

 

 

 

VSSTX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

TPIN-

 

 

 

12

 

 

 

 

 

 

 

 

TPOUT+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

TPIN+

 

 

 

13

 

 

 

 

 

 

 

 

TPOUT-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

RBIAS

 

 

 

14

 

 

 

 

 

 

 

 

VDDTX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28-Pin QFN(2)

CLKOUT VSS VCAP

 

 

 

 

LEDA LEDB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NC(1)

 

 

 

 

28 27 26 25 24 23 22

 

 

 

 

 

 

 

 

 

VDDOSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

 

 

 

 

 

SO

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

OSC2

SI

 

 

 

3

 

 

ENC28J60

19

 

 

 

 

 

 

OSC1

SCK

 

 

 

 

4

 

 

18

 

 

 

 

 

 

VSSOSC

CS

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

VSSPLL

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

VDDPLL

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSSRX

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

VDDRX

 

 

 

 

 

 

 

 

8

9 10 11 12 13 14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPOUT-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPIN-

TPIN+ RBIAS VDDTX

 

TPOUT+ VSSTX

 

 

 

 

 

 

 

 

 

Note 1: Reserved pin; always leave disconnected.

2:The back pad on QFN devices should be connected to Vss.

 

 

 

2006-2012 Microchip Technology Inc.

.

DS39662E-page 1

ENC28J60

 

Table of Contents

 

1.0

Overview ......................................................................................................................................................................................

3

2.0

External Connections ...................................................................................................................................................................

5

3.0

Memory Organization .................................................................................................................................................................

11

4.0

Serial Peripheral Interface (SPI).................................................................................................................................................

25

5.0

Ethernet Overview......................................................................................................................................................................

31

6.0

Initialization.................................................................................................................................................................................

33

7.0

Transmitting and Receiving Packets ..........................................................................................................................................

39

8.0

Receive Filters............................................................................................................................................................................

47

9.0

Duplex Mode Configuration and Negotiation..............................................................................................................................

53

10.0

Flow Control ...............................................................................................................................................................................

55

11.0

Reset ..........................................................................................................................................................................................

59

12.0

Interrupts ....................................................................................................................................................................................

63

13.0

Direct Memory Access Controller ...............................................................................................................................................

71

14.0

Power-Down...............................................................................................................................................................................

73

15.0

Built-in Self-Test Controller ........................................................................................................................................................

75

16.0

Electrical Characteristics ............................................................................................................................................................

79

17.0

Packaging Information................................................................................................................................................................

83

Appendix A: Revision History...............................................................................................................................................................

93

The Microchip Web Site .......................................................................................................................................................................

95

Customer Change Notification Service ................................................................................................................................................

95

Customer Support ................................................................................................................................................................................

95

Reader Response ................................................................................................................................................................................

96

Product Identification System...............................................................................................................................................................

99

TO OUR VALUED CUSTOMERS

It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced.

If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We welcome your feedback.

Most Current Data Sheet

To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies.

To determine if an errata sheet exists for a particular device, please check with one of the following:

Microchip’s Worldwide Web site; http://www.microchip.com

Your local Microchip sales office (see last page)

When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are using.

Customer Notification System

Register on our web site at www.microchip.com to receive the most current information on all of our products.

DS39662E-page 2

.

2006-2012 Microchip Technology Inc.