ZHCSKM7G december   2019  – july 2023 DP83826E , DP83826I

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Mode Comparison Tables
  7. 6 Pin Configuration and Functions (ENHANCED Mode)
  8. 7 Pin Configuration and Functions (BASIC Mode)
  9. 8 Specifications
    1. 8.1 绝对最大额定值
    2. 8.2 ESD 等级
    3. 8.3 建议运行条件
    4. 8.4 热性能信息
    5. 8.5 电气特性
    6. 8.6 时序要求
    7. 8.7 Timing Diagrams
    8. 8.8 Typical Characteristics
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Auto-Negotiation (Speed/Duplex Selection)
      2. 9.3.2  Auto-MDIX Resolution
      3. 9.3.3  Energy Efficient Ethernet
        1. 9.3.3.1 EEE Overview
        2. 9.3.3.2 EEE Negotiation
      4. 9.3.4  EEE for Legacy MACs Not Supporting 802.3az
      5. 9.3.5  Wake-on-LAN Packet Detection
        1. 9.3.5.1 Magic Packet Structure
        2. 9.3.5.2 Magic Packet Example
        3. 9.3.5.3 Wake-on-LAN Configuration and Status
      6. 9.3.6  Low Power Modes
        1. 9.3.6.1 Active Sleep
        2. 9.3.6.2 IEEE Power-Down
        3. 9.3.6.3 Deep Power Down State
      7. 9.3.7  RMII Repeater Mode
      8. 9.3.8  Clock Output
      9. 9.3.9  Media Independent Interface (MII)
      10. 9.3.10 Reduced Media Independent Interface (RMII)
      11. 9.3.11 Serial Management Interface
        1. 9.3.11.1 Extended Register Space Access
        2. 9.3.11.2 Write Address Operation
        3. 9.3.11.3 Read Address Operation
        4. 9.3.11.4 Write (No Post Increment) Operation
        5. 9.3.11.5 Read (No Post Increment) Operation
        6. 9.3.11.6 Example Write Operation (No Post Increment)
      12. 9.3.12 100BASE-TX
        1. 9.3.12.1 100BASE-TX Transmitter
          1. 9.3.12.1.1 Code-Group Encoding and Injection
          2. 9.3.12.1.2 Scrambler
          3. 9.3.12.1.3 NRZ to NRZI Encoder
          4. 9.3.12.1.4 Binary to MLT-3 Converter
        2. 9.3.12.2 100BASE-TX Receiver
      13. 9.3.13 10BASE-Te
        1. 9.3.13.1 Squelch
        2. 9.3.13.2 Normal Link Pulse Detection and Generation
        3. 9.3.13.3 Jabber
        4. 9.3.13.4 Active Link Polarity Detection and Correction
      14. 9.3.14 Loopback Modes
        1. 9.3.14.1 Near-end Loopback
        2. 9.3.14.2 MII Loopback
        3. 9.3.14.3 PCS Loopback
        4. 9.3.14.4 Digital Loopback
        5. 9.3.14.5 Analog Loopback
        6. 9.3.14.6 Far-End (Reverse) Loopback
      15. 9.3.15 BIST Configurations
      16. 9.3.16 Cable Diagnostics
        1. 9.3.16.1 Time Domain Reflectometry (TDR)
        2. 9.3.16.2 Fast Link-Drop Functionality
      17. 9.3.17 LED and GPIO Configuration
    4. 9.4 Programming
      1. 9.4.1 Hardware Bootstraps Configuration
        1. 9.4.1.1 DP83826 Bootstrap Configurations (ENHANCED Mode)
          1. 9.4.1.1.1 Bootstraps for PHY Address
        2. 9.4.1.2 DP83826 Strap Configuration (BASIC Mode)
          1. 9.4.1.2.1 Bootstraps for PHY Address
    5. 9.5 Register Maps
      1. 9.5.1 DP83826 Registers
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Twisted-Pair Interface (TPI) Network Circuit
      2. 10.2.2 Transformer Recommendations
      3. 10.2.3 Capacitive DC Blocking
      4. 10.2.4 Design Requirements
        1. 10.2.4.1 Clock Requirements
          1. 10.2.4.1.1 Oscillator
          2. 10.2.4.1.2 Crystal
      5. 10.2.5 Detailed Design Procedure
        1. 10.2.5.1 MII Layout Guidelines
        2. 10.2.5.2 RMII Layout Guidelines
        3. 10.2.5.3 MDI Layout Guidelines
      6. 10.2.6 Application Curves
  12. 11Power Supply Recommendations
  13. 12Layout
    1. 12.1 Layout Guidelines
      1. 12.1.1 Signal Traces
      2. 12.1.2 Return Path
      3. 12.1.3 Transformer Layout
      4. 12.1.4 Metal Pour
      5. 12.1.5 PCB Layer Stacking
        1. 12.1.5.1 Layout Example
  14. 13Device and Documentation Support
    1. 13.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 静电放电警告
    6. 13.6 术语表
  15. 14Mechanical, Packaging, and Orderable Information

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10.1 Application Information

The DP83826 is a single-port 10/100-Mbps Ethernet PHY. It supports connections to an Ethernet MAC through MII and RMII. Connections to the Ethernet media are made via the IEEE 802.3 defined media-dependent interface.

When using the device for Ethernet applications, it is necessary to meet certain requirements for normal operation. The following subsections are intended to assist in appropriate component selection and required circuit connections.

Note: For a step-by-step approach to using the DP83826 BASIC mode in existing systems that use a common standard Ethernet pinout Refer to SNLA338
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