SNLA411 October   2022 DP83TC812R-Q1 , DP83TC812S-Q1 , DP83TC813R-Q1 , DP83TC813S-Q1

 

  1.   Abstract
  2.   Trademarks
  3. Introduction
    1. 1.1 System Block Diagram
    2. 1.2 Terminology
  4. TC10 Pin Descriptions
  5. Primary Functions of the PHY
    1. 3.1 Transition from Sleep to Wake-up mode
      1. 3.1.1 Local Wake Detection
      2. 3.1.2 WUP Transmission and Reception
    2. 3.2 Wake Forwarding
    3. 3.3 Transition to Sleep - Sleep Negotiation
      1. 3.3.1 Sleep Ack
      2. 3.3.2 Sleep Request
      3. 3.3.3 Sleep Silent
      4. 3.3.4 Sleep Fail
      5. 3.3.5 Sleep
      6. 3.3.6 Normal State
      7. 3.3.7 Other Transitions
        1. 3.3.7.1 Forced Sleep
        2. 3.3.7.2 Activity during Sleep Negotiation
        3. 3.3.7.3 Link Down during Sleep Negotiation
        4. 3.3.7.4 Sleep Silent to Standby
  6. Relevant Registers
  7. Power Supply Recommendation
    1. 5.1 Core Supply Network Recommendation
    2. 5.2 Networks with Shared Core Supplies
  8. Sequence of Events and Timing
    1. 6.1 Local Wake Timing
    2. 6.2 Remote Wake Timing
    3. 6.3 Successful Sleep Negotiation Timing
    4. 6.4 Sleep Abort Timing
    5. 6.5 WUR Timing
  9. Ethernet Network Wake-up
  10. Configuration for non-TC10 Applications
  11. Additional Features
    1. 9.1 WUR Initiation Through WAKE Pin
    2. 9.2 Programmable Wake-Forward Pulse Width
  12. 10Conclusion

Configuration for non-TC10 Applications

The following configuration is recommended for DP83TC812/3 in applications where TC10 sleep/wake-up functionality is not required.

Hardware Configuration

  • VSLEEP pin can be connected to VDDA (or any 3.3 V supply source).
  • WAKE pin should be pulled up to corresponding VSLEEP supply connection directly or through a resistor lower than 10 kΩ. WAKE pin can't be pulled up to VDDIO/VDDMAC supply.
  • INH can be left floating.

Software Configuration

To disable the TC10 functionality, an additional setting reg<0x018B>[8] = 1 should be programmed along with the other initialization settings.