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MB86R02 ‘Jade-D’ Hardware Manual V1.64
18.7.3 Video Buffer
18.7.3.1
Data Format
Data is stored in the capture buffer in a 16 bits/pixel format. Two color components (Cb, Cr) are
respectively half the resolution of the luma data (Y component) in the horizontal direction. As the table
below shows 32 bits, it therefore holds the data for two pixels.
Note that for the L1 layer, data is converted to the RGB format before it is displayed.
format
31 30
…
25 24 23 22
…
17 16 15 14
…
9 8 7 6
…
1 0
YCbCr 16 bit/pixel
Y
Cr
Y
Cb
Data can also be stored in an RGB format, assuming that the drawing unit uses the data as a texture.
The following formats are used:
format
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ARGB 16 bits/pixel
A
R
G
B
RGBA 16 bits/pixel
R
G
B
A
format
31 30
…
25 24 23 22
…
17 16 15 14
…
9 8 7 6
…
1 0
ARGB 24 bits/pixel
A
ignored
R
G
B
RGBA 24 bits/pixel
R
G
B
A
The relationship between the capture data formats and the data format control bits in registers is
shown below:
NRGB
1
CRGB
2
C24
2
RGBA
Capture data format
up-scaling
0
0
0
0
YcbCr 16 bits/pixel
0
0
0
1
Unused
0
0
1
x
Unused
0
1
0
0
ARGB 16 bits/pixel (YCbCr
→
RGB conversion)
0
1
0
1
RGBA 16 bits/pixel (YCbCr
→
RGB conversion)
0
1
1
0
ARGB 24 bits/pixel (YCbCr
→
RGB conversion)
0
1
1
1
RGBA 24 bits/pixel (YCbCr
→
RGB conversion)
1
0
0
0
ARGB 16 bits/pixel
1
0
0
1
RGBA 16 bits/pixel
1
0
1
0
ARGB 24 bits/pixel
1
0
1
1
RGBA 24 bits/pixel
1
1
x
x
Unused
1
NRGB = Native RGB (see
VCM
register)
2
CRGB = Capture RGB, C24 = Color 24bit/Pixel (see CBM register)
Summary of Contents for MB86R02
Page 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Page 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Page 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
Page 167: ...8 8 MB86R02 Jade D Hardware Manual V1 64 ...
Page 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Page 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
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Page 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
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