Datasheet

 2010 Microchip Technology Inc. DS39935C-page 159
ENC424J600/624J600
INDEX
A
AC Characteristics
CLKOUT Pin ............................................................. 145
CLKOUT Pin Timing Specifications .......................... 145
ENC424J600/624J600 (Industrial)............................ 145
Oscillator Timing ....................................................... 145
PSP Interface Timing Specifications......................... 147
SPI Interface ............................................................. 146
Advanced Encryption Standard (AES)
Context Switching ..................................................... 130
Key Support .............................................................. 129
B
Block Diagrams
Alternate TX Choke Topology..................................... 12
Bi-Color LED Connection............................................ 12
CBC Encryption/Decryption ...................................... 131
CFB Encryption/Decryption....................................... 132
Crystal Oscillator Operation .......................................... 9
CTR Encryption/Decryption ...................................... 134
ECB Encryption/Decryption ...................................... 130
ENC424J600/624J600.................................................. 6
Ethernet Packet Format.............................................. 71
Example TX Buffer Wrapping ..................................... 83
External Clock Source .................................................. 9
I/O Level Shifting on SPI Interface
Using 3-State Buffers.......................................... 15
I/O Level Shifting on SPI Interface
Using AND Gates ............................................... 15
Interrupt Logic ........................................................... 117
OFB Encryption/Decryption ...................................... 133
On-Chip Reset Circuit................................................. 73
PSP External Connections Mode 1............................. 54
PSP External Connections Mode 10........................... 69
PSP External Connections Mode 2............................. 55
PSP External Connections Mode 3............................. 57
PSP External Connections Mode 4............................. 59
PSP External Connections Mode 5............................. 62
PSP External Connections Mode 6............................. 65
PSP External Connections Mode 9............................. 67
RBIAS Resistor ........................................................... 10
Receive Filter Decision Tree....................................... 98
Single Color LED Connection ..................................... 12
Typical Ethernet Magnetics Connections.................... 11
Using INT
/SPISEL Pin to Select I/O Interface ............ 13
V
CAP Connections....................................................... 10
Buffer Pointers (SRAM Access).......................................... 34
C
CLKOUT Pin ......................................................................... 9
CRC
Frame Field................................................................. 72
Cryptographic Security Engines
Advanced Encryption Standard (AES)...................... 129
Cipher Block Chaining Mode (CBC) ................. 131
Cipher Feedback Mode (CFB).......................... 132
Counter Mode (CTR) ........................................ 134
Electronic Code Book Mode (ECB) .................. 130
Output Feedback Mode (OFB) ......................... 133
MD5/SHA-1 Hashing................................................. 126
Context Switching ............................................. 128
Modular Exponentiation ............................................ 125
Customer Change Notification Service............................. 162
Customer Notification Service .......................................... 162
Customer Support............................................................. 162
D
DC Characteristics
ENC424J600/624J600 (Industrial) ........................... 143
Internal Voltage Regulator........................................ 144
Requirements for External Magnets ......................... 144
Thermal Operating Conditions.................................. 142
Thermal Packaging................................................... 142
Destination Address............................................................ 71
Device Features (table) ........................................................ 5
Device Initialization ....................................................... 75–76
Digital I/O Levels................................................................. 15
Direct Memory Access (DMA) Controller.......................... 123
DMA Controller
Checksum Calculations............................................ 124
Copying Memory ...................................................... 123
Performance ............................................................. 124
E
E Registers ......................................................................... 19
Electrical Characteristics .................................................. 141
Absolute Maximum Ratings...................................... 141
ENC424J600/624J600 Register File Summary ............ 26–27
Energy Detect Power-Down ............................................. 137
Equations
Increment Logic for EGPRDPT and EGPWRPT ........ 35
Increment Logic for ERXRDPT and ERXWRPT......... 36
Increment Logic for EUDARDPT
and EUDAWRPT ................................................ 36
Errata.................................................................................... 4
Ethernet
Frame Format............................................................. 71
Ethernet Frame Format ...................................................... 71
Ethernet Overview .............................................................. 71
Examples
Deriving a Hash Table Location ............................... 100
External Connections
CS/CS
Pin .................................................................. 15
Digital I/O Levels ........................................................ 15
EMI and Layout Considerations ................................. 12
LEDA and LEDB......................................................... 12
Oscillator....................................................................... 9
PSP Host Interface ..................................................... 14
RBIAS Pin................................................................... 10
SPI Host Interface ...................................................... 14
V
CAP Pin ..................................................................... 10
V
DD/VSS Pins.............................................................. 10
External Power-Down....................................................... 138
F
Fast Link Pulses (FLPs).................................................... 109
Flow Control
Automatic Control..................................................... 106
Full-Duplex Operation............................................... 105
Half-Duplex Operation .............................................. 105
Manual Control ......................................................... 106
Pause Control Frames.............................................. 105
Receive Watermark Register.................................... 106
Frame Padding (Field)........................................................ 72