SNLS543 August 2018 DS90UH949A-Q1
Single Link mode transmits the video over a single FPD-Link III to a single receiver. Single link mode supports frequencies up to 105 MHz for 24-bit video when paired with the DS90UH940A-Q1/DS90UH948A-Q1. This mode is compatible with the DS90UH926Q-Q1/DS90UH928Q-Q1 when operating below 85 MHz. If the downstream device is capable, the secondary FPD-Link III link could be used for high-speed control.
In Forced Single mode (set through DUAL_CTL1 register), the secondary TX Phy and back channel are disabled.