BT848 ETC, BT848 Datasheet - Page 50
![no-image](/images/no-image-200.jpg)
BT848
Manufacturer Part Number
BT848
Description
Single-Chip Video Capture for PCI
Manufacturer
ETC
Datasheet
1.BT848.pdf
(141 pages)
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F
Video Data Format Conversion
Table 7. Color Formats
40
UNCTIONAL
Format
RGB32
RGB24
RGB16
RGB15
YUY2—YCrCb 4:2:2
BtYUV—YCrCb 4:1:1
Y8 (Gray Scale)
8-bit Dithered
VBI Data
YCrCb 4:2:2 Planar
YUV12 Planar
YCrCb 4:1:1 Planar
YUV9 Planar
Notes: (1). The alpha byte can be written as 0 data, or not written.
(1)
(2). UYVY can be achieved by byte swapping.
D
ESCRIPTION
(2)
DWORD
dw0
dw0
dw1
dw2
dw0
dw0
dw0
dw1
dw0
dw1
dw2
dw0
dw0
dw0
dw0 FIFO1
dw1 FIFO1
dw0 FIFO2
dw0 FIFO3
Vertically sub-sampled to 4:2:2 by the DMA controller
dw0 FIFO1
dw1 FIFO1
dw2 FIFO1
dw3 FIFO1
dw0 FIFO2
dw0 FIFO3
Vertically sub-sampled to 4:1:1 by the DMA controller
L848A_A
Alpha
B1
G2
R3
{R1[7:3],G1[7:2],B1[7:3]}
{0,R1[7:3],G1[7:3],B1[7:3]}
Cr0
Cr2
Y1
Y3
Y7
Y3
B3
D3
Y3
Y7
Cb6
Cr6
Y3
Y7
Y11
Y15
Cb12
Cr12
Byte Lane 3
[31:24]
R
R0
B2
G3
Y1
Y3
Cr0
Cr4
Y6
Y2
B2
D2
Y2
Y6
Cb4
Cr4
Y2
Y6
Y10
Y14
Cb8
Cr8
Byte Lane 2
[23:16]
Pixel Data [31:0]
Single-Chip Video Capture for PCI
G
G0
R1
B3
{R0[7:3],G0[7:2],B0[7:3]}
{0,R0[7:3],G0[7:3],B0[7:3]}
Cb0
Cb2
Y0
Y2
Y5
Y1
B1
D1
Y1
Y5
Cb2
Cr2
Y1
Y5
Y9
Y13
Cb4
Cr4
Byte Lane 1
[15:8]
Bt848/848A/849A
B
B0
G1
R2
Y0
Y2
Cb0
Cb4
Y4
Y0
B0
D0
Y0
Y4
Cb0
Cr0
Y0
Y4
Y8
Y12
Cb0
Cr0
Byte Lane 0
Brooktree
[7:0]
®
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