Memory Storing Method - Samsung S5PC110 Manual

S5PC110_UM

2.7.4 MEMORY STORING METHOD

The storing order of frame memory is little-endian. The first entering pixels are stored in the LSB sides, while the
last entering pixels are stored in the MSB sides. The carried data by AXI bus is 64-bit. Therefore, CAMIF makes
each Y-Cb-Cr words using little endian style. End-of-horizontal line that not aligned with 64-bit, is padded with zero
for RAW8, RAW10 and RAW12 format, For more information, refer to
63
Y8 Y7 Y6
8bit
63
R8 G8 B8
63
R6 G6 B6
14bit
4 3
16-bit
R 5 G 6 B 5
64-bit
RAW12
5 4 3
4 bit
RAW10
6 5 4
RAW8 (= JPEG)
8 7 6 5 4
64-bit
0
Y5 Y4 Y3 Y2 Y1
Image
Camera
Data
Interface
0
R8 G8 B8
0
R6 G6 B6
64-bit
2 1
2 1
3 2 1
3 2 1
Figure 2-13.
Y8 Y7 Y6 Y5
Little endian method
Y frame memory
Cb8 Cb7 Cb6 Cb5
Little endian method
Cb frame memory
Cr8 Cr7 Cr6 Cr5
Little endian method
Cr frame memory
Cr2 Y4 Cb2 Y3
Little endian method
YCbCr 4:2:2 1plane frame memory
Cr4 Cb4 Cr3 Cb3
Little endian method
CbCr frame memory
RGB2 RGB1 RGB4 RGB3 RGB6
RGB frame memory
(24/18-bit)
RGB4 RGB3 RGB2 RGB1 RGB8
RGB frame memory
RAW5 RAW4 RAW3 RAW2 RAW1
Bayer RAW frame memory
(8/10/12-bit)
2 1BCAMERA INTERFACE
Y4 Y3 Y2 Y1
Cb4 Cb3 Cb2 Cb1
Cr4 Cr3 Cr2 Cr1
Cr1 Y2 Cb1 Y1
Cr2 Cb2 Cr1 Cb1
RGB5 RGB8 RGB7
RGB7 RGB6 RGB5
(16-bit)
2-15