SLLU341 July   2022 TMDS1204

 

  1.   Abstract
  2.   Trademarks
  3. 1Overview
    1. 1.1 What is the TMDS1204 EVM?
    2. 1.2 What is Included in the TMDS1204EVM?
    3. 1.3 What Does the EVM Look Like?
  4. 2Hardware Configuration
    1. 2.1 Power
    2. 2.2 Enable or Reset
    3. 2.3 Configuration Jumpers
    4. 2.4 Rx EQ Configuration
    5. 2.5 HPD Snoop Option
    6. 2.6 Local I2C Access
  5. 3Quick Start Guide
  6. 4Schematics
    1.     16
    2.     17
    3.     18
    4.     19
    5.     20
    6.     21
    7.     22
    8.     23
  7. 5References

2.5 HPD Snoop Option

To accommodate systems that do not properly resend DDC commands after HPD goes low, we have implemented an HPD snoop mode on the TMDS1204 EVM. This mode allows the HPD line to be routed around the TMDS1204, but remain connected to the TMDS1204 on the sink side to allow the TMDS1204 to snoop its state.

  • Populate R131, no populate R129 for HPD on
  • No populate R131, populate R129 for HPD snoop-only