SNLS505E August   2016  – March 2019 DP83822H , DP83822HF , DP83822I , DP83822IF

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
    2. 6.1 IO Pins State During Reset
  7. Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Timing Requirements, Power-Up Timing
    7. 7.7  Timing Requirements, Reset Timing
    8. 7.8  Timing Requirements, Serial Management Timing
    9. 7.9  Timing Requirements, 100 Mbps MII Transmit Timing
    10. 7.10 Timing Requirements, 100 Mbps MII Receive Timing
    11. 7.11 Timing Requirements, 10 Mbps MII Transmit Timing
    12. 7.12 Timing Requirements, 10 Mbps MII Receive Timing
    13. 7.13 Timing Requirements, RMII Transmit Timing
    14. 7.14 Timing Requirements, RMII Receive Timing
    15. 7.15 Timing Requirements, RGMII
    16. 7.16 Normal Link Pulse Timing
    17. 7.17 Auto-Negotiation Fast Link Pulse (FLP) Timing
    18. 7.18 10BASE-Te Jabber Timing
    19. 7.19 MII: 100BASE-TX Transmit Latency Timing
    20. 7.20 MII: 100BASE-TX Receive Latency Timing
    21. 7.21 Timing Diagrams
    22. 7.22 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Energy Efficient Ethernet
        1. 8.3.1.1 EEE Overview
        2. 8.3.1.2 EEE Negotiation
      2. 8.3.2 Wake-on-LAN Packet Detection
        1. 8.3.2.1 Magic Packet Structure
        2. 8.3.2.2 Magic Packet Example
        3. 8.3.2.3 Wake-on-LAN Configuration and Status
      3. 8.3.3 Start of Frame Detect for IEEE 1588 Time Stamp
      4. 8.3.4 Clock Output
    4. 8.4 Device Functional Modes
      1. 8.4.1  MAC Interfaces
        1. 8.4.1.1 Media Independent Interface (MII)
        2. 8.4.1.2 Reduced Media Independent Interface (RMII)
        3. 8.4.1.3 Reduced Gigabit Media Independent Interface (RGMII)
      2. 8.4.2  Serial Management Interface
        1. 8.4.2.1 Extended Register Space Access
        2. 8.4.2.2 Write Address Operation
        3. 8.4.2.3 Read Address Operation
        4. 8.4.2.4 Write (No Post Increment) Operation
        5. 8.4.2.5 Read (No Post Increment) Operation
        6. 8.4.2.6 Write (Post Increment) Operation
        7. 8.4.2.7 Read (Post Increment) Operation
        8. 8.4.2.8 Example Write Operation (No Post Increment)
        9. 8.4.2.9 Example Read Operation (No Post Increment)
      3. 8.4.3  100BASE-TX
        1. 8.4.3.1 100BASE-TX Transmitter
          1. 8.4.3.1.1 Code-Group Encoding and Injection
          2. 8.4.3.1.2 Scrambler
          3. 8.4.3.1.3 NRZ to NRZI Encoder
          4. 8.4.3.1.4 Binary to MLT-3 Converter
        2. 8.4.3.2 100BASE-TX Receiver
      4. 8.4.4  100BASE-FX
        1. 8.4.4.1 100BASE-FX Transmit
        2. 8.4.4.2 100BASE-FX Receive
      5. 8.4.5  10BASE-Te
        1. 8.4.5.1 Squelch
        2. 8.4.5.2 Normal Link Pulse Detection and Generation
        3. 8.4.5.3 Jabber
        4. 8.4.5.4 Active Link Polarity Detection and Correction
      6. 8.4.6  Auto-Negotiation (Speed / Duplex Selection)
      7. 8.4.7  Auto-MDIX Resolution
      8. 8.4.8  Loopback Modes
        1. 8.4.8.1 Near-End Loopback
        2. 8.4.8.2 MII Loopback
        3. 8.4.8.3 PCS Loopback
        4. 8.4.8.4 Digital Loopback
        5. 8.4.8.5 Analog Loopback
        6. 8.4.8.6 Far-End (Reverse) Loopback
      9. 8.4.9  BIST Configurations
      10. 8.4.10 Cable Diagnostics
        1. 8.4.10.1 TDR
      11. 8.4.11 Fast Link Down Functionality
    5. 8.5 Programming
      1. 8.5.1 Hardware Bootstrap Configurations
      2. 8.5.2 LED Configuration
      3. 8.5.3 PHY Address Configuration
    6. 8.6 Register Maps
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPI Network Circuit
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Fiber Network Circuit
        1. 9.2.2.1 Design Requirements
          1. 9.2.2.1.1 Clock Requirements
            1. 9.2.2.1.1.1 Oscillator
            2. 9.2.2.1.1.2 Crystal
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 MII Layout Guidelines
          2. 9.2.2.2.2 RMII Layout Guidelines
          3. 9.2.2.2.3 RGMII Layout Guidelines
          4. 9.2.2.2.4 MDI Layout Guidelines
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Characteristics
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Signal Traces
      2. 11.1.2 Return Path
      3. 11.1.3 Transformer Layout
        1. 11.1.3.1 Transformer Recommendations
      4. 11.1.4 Metal Pour
      5. 11.1.5 PCB Layer Stacking
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Auto-Negotiation (Speed / Duplex Selection)

Auto-Negotiation provides a mechanism for exchanging configuration information between the two ends of a link segment. This mechanism is implemented by exchanging Fast Link Pulses (FLP). FLPs are burst pulses that provide the information used to communicate the abilities between two devices at each end of a link segment. The DP83822 supports 100BASE-TX and 10BASE-Te modes of operation for Auto-Negotiation. 100BASE-FX is not included in the Auto-Negotiation process. Auto-Negotiation ensures that the highest performance protocol is selected based on the advertised abilities of the Link Partner and the local device. Auto-Negotiation can be enabled or disabled in hardware, using the AN_EN bootstrap, or by regsiter configuration, using bit[12] in the Basic Mode Control Register (BMCR, address 0x0000). For further details regarding Auto-Negotiation, refer to Clause 28 of the IEEE 802.3 specification.