XV_HDMIRXSS_HANDLER_CONNECT - 3.1 English

HDMI 1.4/2.0 Receiver Subsystem Product Guide (PG236)

Document ID
PG236
Release Date
2020-12-11
Version
3.1 English

This interrupt is triggered every time an HDMI RX cable connection or disconnection (HPD level transition) occurs. The callback function must perform the following:

  1. Enable or disable the differential input clock buffer depending on whether cable connection or disconnection occurs, respectively.
    void XVphy_IBufDsEnable(XVphy *InstancePtr, 
                            u8 QuadId, 
                            XVphy_DirectionType Dir,
                            u8 Enable);
  2. Clear Video PHY RX TMDS Clock ratio when cable is disconnected:
    Vphy.HdmiRxTmdsClockRatio = 0;