5.7.5.9 CSI-2 Demux RAW Data Decompression Support
The CSI-2 implementation allows RAW data compression on the interface between the host processor and the camera module. Data compression schemes use an X-Y-Z naming convention where X is the number of bits per pixel in the original image, Y is the number of encoded (compressed) bits per pixel in the transmitted bit stream, and Z the number of decoded (uncompressed) bits per pixels.
CSI2DC_VPCFG.DM | X-Y-Z CSI-2 Naming Rule |
---|---|
DECODER8TO12 | 12-8-12 |
DECODER7TO12 | 12-7-12 |
DECODER6TO12 | 12-6-12 |
DECODER8TO10 | 10-8-10 |
DECODER7TO10 | 10-7-10 |
DECODER6TO10 | 10-6-10 |
The data compression schemes specified in CSI-2 Annex E are lossy and are designed to encode each line independently.
CSI2DC_VPCFG.DM | RAW_DECODER[11:0] |
---|---|
DECODER8TO12 | XDECO[11:0] |
DECODER7TO12 | XDECO[11:0] |
DECODER6TO12 | XDECO[11:0] |
DECODER8TO10 | XDECO[9:0] |
DECODER7TO10 | XDECO[9:0] |
DECODER6TO10 | XDECO[9:0] |