Note: (1) H
and V
total
total
BW for 8 BPP datatypes. This is the minimum BPP required for the video pipe.
If the lane speeds on the MIPI receiver are fast enough to handle the video payload, the part should not overflow.
After calculating the video payload, overhead is added to calculate the total GMSL bandwidth.
= [( ) + ( ℎ ) + ( ) ] ∗ ( 910 ) ∗
( ) ∗ ( )
The majority of GMSL2 serial link bandwidth comprises video transmission. The total link bandwidth consumed by
video is derived from the incoming video stream and calculated by multiplying the pixel clock (PCLK) expressed in
MHz, bits per pixel (bpp), and GMSL2 link overhead factors. Note that control channel features (e.g., GPIO, SPI)
affect link bandwidth consumption and must be considered if enabled.
Note: "*" only applies when GMSL FEC is enabled. Bandwidth utilization for all control channel and side channel
communication increases by 6.7% when forward-error correction (FEC) is enabled. FEC is optional for GMSL2
operation.
Error Flags
Overview
The device contains many internal error detection mechanisms to alert the system or user of any issues. Error flags
are register bits that can be checked to see if an error has occurred.
The error bar (ERRB) pin is an MFP pin that logically NORs many of the errors. Whether an error is included in the
ERRB output depends on if its output-enable (OEN) bitfield is set high. Most OENs are high by default.
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must include the horizontal and vertical blanking. (2) Use a BPP of 9 when calculating the
= ∗ [ ( ) + (
∗
1
1
) + (
)] ∗ (
2
2
∗
10
2048
128
) ∗ (
) ∗ (
)
9
2047
120
Analog Devices | 46
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