JAJSCC4A July 2016 – January 2024 DS90UB964-Q1
PRODUCTION DATA
Video stream forwarding is handled by the forwarding control in the DS90UB964-Q1 on FWD_CTL1 register 0x20. The forwarding control pulls data from the video buffers for each FPD-Link III RX port and forwards the data to one of the CSI-2 output interfaces. Forwarding control also handles generation of transitions between LP and HS modes as well as sending of Synchronization frames. The forwarding control monitors each of the video buffers for packet and data availability.
Forwarding from input ports can be disabled using per-port controls. Each of the forwarding engines can be configured to pull data from any of the four video buffers, although a buffer can only be assigned to one CSI-2 Transmitter at a time. The two forwarding engines operate independently. Video buffers are assigned to the CSI-2 Transmitters using the mapping bits in the FWD_CTL1 register 0x20[7:4].