LSI Logic Confidential
11-6
Video Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
Figure 11.4 Single Video Stream
11.2.2 ITU-R 656 Operation
shows the input/output timing for ITU-R BT.656 operation.
The VI_VSYNC signal and digital video are combined into an 8-bit input
clocked at 27 MHz. Active 8-bit video data is surrounded by SAV and
EAV codes. These codes are implemented using reserved 0x00 and
0xFF code sequences within the video field.
Figure 11.5 ITU-R BT.656 Timing
11.3 Video Control Register
The Video Control Register is used to control a variety of features, as
described in the description below. A read-modify-write cycle must be
used when accessing this register.
Interleaved
Single
Stream
Odd Field
Even Field
4 Clocks
Horizontal Blanking
Active Video
Active Video
Composite
Video
CCIR-656
VI_D[7:0]
268 Clocks (NTSC)
280 Clocks (PAL)
Y Cr Y FF 00 00 XY 80 10 80 10
80 10 80 10 80 10
80 10 80 10 FF 00 00 XYCb Y Cr Y Cb Y
SAV Code
Ancillary Data
EAV Code
Содержание DMN-8600
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