Intel 21143 User Manuals

Table of Contents

• 1.0 Functional Overview

  5
  • 1.1 21143 Overview

    5
  • 1.2 Network Interface

    5
  • 1.3 MII-Based PHY Block Diagram

    6
  • 1.4 SYM-Based PHY Block Diagram

    6
• 2.0 21143 Ports

  7
• 3.0 Network Connection

  9
  • 3.1 10BASE-T Twisted-Pair Network Port

    9
  • 3.2 100-Ready Designs

    12
    • 3.2.1 Internal Optional Daughtercard

      13
    • 3.2.2 Description of 100-Ready Daughtercard Block Diagram

      13
    • 3.2.3 100-Ready External Module Design

      14
    • 3.2.4 Description of 100-Ready External Module Block Diagram

      14
    • 3.2.5 MII/SYM Pin Listing

      14
  • 3.3 AUI Network Port

    15
  • 3.4 Media-Specific Components

    18
• 4.0 21143 Requirements

  19
  • 4.1 Unused JTAG Port Requirements

    19
  • 4.2 Current Reference and Capacitor Input Requirements

    19
  • 4.3 Crystal and Crystal Oscillator Connections

    20
• 5.0 Signal Routing and Placement

  21
  • 5.1 Ground and Power Planes

    21
    • 5.1.1 3.3V Power Supply

      22
  • 5.2 LED Status Signals

    22
• 6.0 Design Considerations

  23
  • 6.1 Designing the Ethernet Corner on Motherboards

    23
  • 6.2 Suggestions for FCC Compliance

    23
    • 6.2.1 Suggestions for Quiet Ground and Power Planes

      23
    • 6.2.2 Suggestions for Routing

      24