SNLS767 April   2024 DP83TC817S-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Device Comparison Table
  6. 5Application Information
    1. 5.1 MAC Security
    2. 5.2 Time Syncronization
    3. 5.3 TC10 Sleep Wake-up
    4. 5.4 DP83TC817 EVM-MC and Software Support
  7. 6Device and Documentation Support
    1. 6.1 Receiving Notification of Documentation Updates
    2. 6.2 Support Resources
    3. 6.3 Community Resources
    4. 6.4 Trademarks
    5. 6.5 Electrostatic Discharge Caution
    6. 6.6 Glossary
  8. 7Revision History
  9. 8Mechanical, Packaging, and Orderable Information
    1. 8.1 Package Option Addendum
      1. 8.1.1 Packaging Information

5.3 TC10 Sleep Wake-up

DP83TC817 is a 100BASE-T1 Ethernet PHY with TC-10 power saving feature with the following features.

  • Open Alliance TC10 compliant
  • Sleep request feature to shut down Ethernet network to save power
  • 8µA (Typical, 27 °C), 20μA (Maximum, 125 °C) sleep current
  • Wake forwarding feature for Ethernet network wake-up
  • Fast Wake-up

This block diagram shows an example of how TC10 can be implemented in an automotive system. First, the wake up request originates over active link and then the wake up pulse is forwarded over passive link. The wake up request and pulses are exchanged over the Ethernet cable without needing dedicated wake up wire.

GUID-20240411-SS0I-RM7D-Z7RD-PHZGFBXZRVBB-low.png Figure 5-3 TC10 ADAS System Use Case Example

This block diagram shows the system level integration of DP83TC817 to support the TC10 sleep/wake-up feature.

GUID-20230402-SS0I-SC2V-NDM4-VHWRV6RBG3JT-low.svg Figure 5-4 System Block Diagram