Please ensure the following guidelines to use YUV420 8-bit (0x18) feature correctly:
• Ensure that you maintain a minimum of 1 Y-line gap between two successive YUV420 8-bit frames.
• To use virtual channel interleaving, you must maintain a minimum of 1 Y-line gap while switching to a different virtual channel.
• To use data type interleaving or the embedded non-image feature, you must ensure that a minimum of 1 Y-line gap is maintained while switching the data types.
• Consider the pixel width to be 8 when calculating the video_aclk value. See Clocking for details on calculating video_aclk .
• The maximum Y-line word count of the incoming data has to be at least 8 bytes less than the 'YUV420 word count' value configured in the GUI. For example, if the buffer depth selected in GUI is 1024 bytes, then the source/sensor can send Y-lines with a word count up to 1016 bytes.
Note:
1. For YUV420 data format, the abrupt packet end is not indicated by TUSER[1] accompanied by the tlast assertion. Instead, discard the current frame and make sure the TX sends a new frame, indicated by a frame start (tuser[0]).
2. Core disable and re-enable is required when ECC 2-bit errors or SoT Sync errors (ErrSotSyncHS) are seen in the YUV420 8-bit reception because this data format works in pairs.