RM0390
15.5
Data format description
15.5.1
Data formats
Three types of data are supported:
•
8-bit progressive video: either monochrome or raw Bayer format
•
YCbCr 4:2:2 progressive video
•
RGB565 progressive video. A pixel coded in 16 bits (5 bits for blue, 5 bits for red, 6 bits
for green) takes two clock cycles to be transferred.
Compressed data: JPEG
For B&W, YCbCr or RGB data, the maximum input size is 2048 × 2048 pixels. No limit in
JPEG compressed mode.
For monochrome, RGB & YCbCr, the frame buffer is stored in raster mode. 32-bit words are
used. Only the little endian format is supported.
15.5.2
Monochrome format
Characteristics:
•
Raster format
•
8 bits per pixel
Table 101
Byte address
Figure 109. Pixel raster scan order
shows how the data are stored.
Table 101. Data storage in monochrome progressive video format
31:24
0
n + 3
4
n + 7
23:16
n + 2
n + 6
RM0390 Rev 4
Digital camera interface (DCMI)
15:8
n + 1
n + 5
7:0
n
n + 4
433/1328
448
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