DS90UB964-Q1 Datasheet, PDF (37/116 Pages) Texas Instruments – DS90UB964-Q1 Quad FPD-Link III Deserializer Hub

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DS90UB964-Q1
SNLS500 – JULY 2016
FS0
Line Blanking
FE0
C0L1
C1L1
C2L1
C3L1
.
.
.
.
.
.
C0LN
C1LN
C2LN
C3LN
Frame Blanking
Frame 1
Image Data
{Camera 0}
{Camera 1}
{Camera 2}
{Camera 3}
Frame Blanking
KEY:
PH ± Packet Header
FS ± Frame Start
LS ± Line Start
Camera 0
VC-ID = 0
Camera 1
VC-ID = 0
PF ± Packet Footer + Filler (if applicable)
FE ± Frame End
LE ± Line End
Camera 2
VC-ID = 0
Camera 3
VC-ID = 0
*Blanking intervals do not provide accurate synchronization timing
Figure 31. Line-Interleave Format
8.4.19.5 Line-Concatenated Forwarding
In synchronized forwarding, the forwarding engine may be programmed to merge video frames from multiple
sources into a single video frame by concatenating video lines. Each of the cameras for each RX carry different
data streams that get concatenated into one CSI-2 stream. For example, if forwarding from all four input ports,
only one FS, an FE packet is sent for each video frame. The synchronization packets for the other 3 ports are
dropped. In addition, the video lines from each camera are combined into a single line. The controller must
separate the single video line into the separate components based on position within the concatenated video
line.
Example Synchronized traffic to CSI-2 Transmit port at start of frame:
FS0 – C0L1,C1L1,C2L1,C3L1 – C0L2,C1L2,C2L2,C3L2 – C0L3,C1L3,C2L3,C3L3 …
Example Synchronized traffic to CSI-2 Transmit port at end of frame:
... C0LN,C1LN,C2LN,C3LN – FE0
Notes:
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