SNLS614C September   2018  – April 2024 DP83869HM

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  WoL (Wake-on-LAN) Packet Detection
        1. 7.3.1.1 Magic Packet Structure
        2. 7.3.1.2 Wake-on-LAN Configuration and Status
      2. 7.3.2  Start of Frame Detect for IEEE 1588 Time Stamp
        1. 7.3.2.1 SFD Latency Variation and Determinism
          1. 7.3.2.1.1 1000Mb SFD Variation in Master Mode
          2. 7.3.2.1.2 1000Mb SFD Variation in Slave Mode
          3. 7.3.2.1.3 100-Mb SFD Variation
      3. 7.3.3  Clock Output
      4. 7.3.4  Loopback Mode
        1. 7.3.4.1 Near-End Loopback
          1. 7.3.4.1.1 MII Loopback
          2. 7.3.4.1.2 PCS Loopback
          3. 7.3.4.1.3 Digital Loopback
          4. 7.3.4.1.4 Analog Loopback
          5. 7.3.4.1.5 External Loopback
          6. 7.3.4.1.6 Far-End (Reverse) Loopback
        2.       37
      5. 7.3.5  BIST Configuration
      6. 7.3.6  Interrupt
      7. 7.3.7  Power-Saving Modes
        1. 7.3.7.1 IEEE Power Down
        2. 7.3.7.2 Active Sleep
        3. 7.3.7.3 Passive Sleep
      8. 7.3.8  Mirror Mode
      9. 7.3.9  Speed Optimization
      10. 7.3.10 Cable Diagnostics
        1. 7.3.10.1 TDR
      11. 7.3.11 Fast Link Drop
      12. 7.3.12 Jumbo Frames
    4. 7.4 Device Functional Modes
      1. 7.4.1  Copper Ethernet
        1. 7.4.1.1 1000BASE-T
        2. 7.4.1.2 100BASE-TX
        3. 7.4.1.3 10BASE-Te
      2. 7.4.2  Fiber Ethernet
        1. 7.4.2.1 1000BASE-X
        2. 7.4.2.2 100BASE-FX
      3. 7.4.3  Serial GMII (SGMII)
      4. 7.4.4  Reduced GMII (RGMII)
        1. 7.4.4.1 1000Mbps Mode Operation
        2. 7.4.4.2 1000Mbps Mode Timing
        3. 7.4.4.3 10 and 100Mbps Mode
      5. 7.4.5  Media Independent Interface (MII)
      6. 7.4.6  Bridge Modes
        1. 7.4.6.1 RGMII-to-SGMII Mode
        2. 7.4.6.2 SGMII-to-RGMII Mode
        3.       67
      7. 7.4.7  Media Convertor Mode
      8. 7.4.8  Register Configuration for Operational Modes
        1. 7.4.8.1 RGMII-to-Copper Ethernet Mode
        2. 7.4.8.2 RGMII-to-1000Base-X Mode
        3. 7.4.8.3 RGMII-to-100Base-FX Mode
        4. 7.4.8.4 RGMII-to-SGMII Bridge Mode
        5. 7.4.8.5 1000M Media Convertor Mode
        6. 7.4.8.6 100M Media Convertor Mode
        7. 7.4.8.7 SGMII-to-Copper Ethernet Mode
      9. 7.4.9  Serial Management Interface
        1. 7.4.9.1 Extended Register Space Access
          1. 7.4.9.1.1 Read (No Post Increment) Operation
          2. 7.4.9.1.2 Write (No Post Increment) Operation
      10. 7.4.10 Auto-Negotiation
        1. 7.4.10.1 Speed and Duplex Selection - Priority Resolution
        2. 7.4.10.2 Master and Slave Resolution
        3. 7.4.10.3 Pause and Asymmetrical Pause Resolution
        4. 7.4.10.4 Next Page Support
        5. 7.4.10.5 Parallel Detection
        6. 7.4.10.6 Restart Auto-Negotiation
        7. 7.4.10.7 Enabling Auto-Negotiation Through Software
        8. 7.4.10.8 Auto-Negotiation Complete Time
        9. 7.4.10.9 Auto-MDIX Resolution
    5. 7.5 Programming
      1. 7.5.1 Strap Configuration
        1. 7.5.1.1 Straps for PHY Address
        2. 7.5.1.2 Strap for DP83869HM Functional Mode Selection
        3. 7.5.1.3 LED Default Configuration Based on Device Mode
        4. 7.5.1.4 Straps for RGMII/SGMII to Copper
        5. 7.5.1.5 Straps for RGMII to 1000Base-X
        6. 7.5.1.6 Straps for RGMII to 100Base-FX
        7. 7.5.1.7 Straps for Bridge Mode (SGMII-RGMII)
        8. 7.5.1.8 Straps for 100M Media Convertor
        9. 7.5.1.9 Straps for 1000M Media Convertor
      2. 7.5.2 LED Configuration
      3. 7.5.3 Reset Operation
        1. 7.5.3.1 Hardware Reset
        2. 7.5.3.2 IEEE Software Reset
        3. 7.5.3.3 Global Software Reset
        4. 7.5.3.4 Global Software Restart
    6. 7.6 Register Maps
      1. 7.6.1 DP83869 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Copper Ethernet Typical Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Clock Input
            1. 8.2.1.2.1.1 Crystal Recommendations
            2. 8.2.1.2.1.2 External Clock Source Recommendation
          2. 8.2.1.2.2 Magnetics Requirements
            1. 8.2.1.2.2.1 Magnetics Connection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Fiber Ethernet Typical Ethernet
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Transceiver Connections
        3. 8.2.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Two-Supply Configuration
      2. 8.3.2 Three-Supply Configuration
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Signal Traces
          1. 8.4.1.1.1 MAC Interface Layout Guidelines
            1. 8.4.1.1.1.1 SGMII Layout Guidelines
            2. 8.4.1.1.1.2 RGMII Layout Guidelines
          2. 8.4.1.1.2 MDI Layout Guidelines
        2. 8.4.1.2 Return Path
        3. 8.4.1.3 Transformer Layout
        4. 8.4.1.4 Metal Pour
        5. 8.4.1.5 PCB Layer Stacking
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.5.1.9 Straps for 1000M Media Convertor

Table 7-19 1000M Media Strap Table
PIN NAMESTRAP NAMEPIN #DEFAULT
LED_0ANEG_DIS4700Fiber Auto Negotiation
1Fiber Force Mode
LED_1ANEGSEL_0460ANEGSEL_1ANEGSEL_0
LED_2ANEGSEL_145000Copper : Auto-negotiation ( 1000/100 Advertised), Auto MDIX
11Copper : Auto Negotiation ( 1000 Advertised), Auto MDIX
RX_CTRL MIRROR_EN 38 0 0 Copper: Mirror Disable
1 Copper: Mirror Enable
RX_CLK LINK_LOSS 32 0 0 Link Loss Pass Thru Enabled
1 Link Loss Pass Thru Disabled
Note:

In 1000M media converter mode, Cu Auto-negotiation does not downgrade to 100Mbps if LP supports only 100Mbps and link will fail.