LSI Logic Confidential
AC Timing
18-33
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
18.2.9.1
Video Output
For video output,
defines the video output clock source. The
timing of all video I/O ports of the video output channel is defined with
respect to the VO_CLK pin and the OSync register bit setting of the
Video Status register.
Table 18.21 Video Input Stream AC Timing Parameters at VI_CLK[0]
Symbol
Description
Timing Value
Unit
Min
Typ
Max
T
C
Cycle time
13.46
(74.25 MHz)
37.03 (27
MHz)
ns
T
1
Rise time
0.5
5.0
(27 MHz)
2.0
(74.25 MHz)
ns
T
2
Fall time
0.5
5.0
(27 MHz)
2.0
(74.25 MHz)
ns
T
3
Input data setup time (VI_D[9:2] and
VI_VSYNC[0]) before the rising edge of
VI_CLK[0]
3.0
T
4
Input data hold time for VI_D[9:2],
VI_VSYNC[0] after the rising edge of
VI_CLK[0]
0
ns
Table 18.22 Video Out Clock Source
OSync
Video Out
PLL Source
VO_CLK
0
0
Video out clock is internally generated; DMN-8600 drives out VO_CLK pin
1
Don’t care
VI_CLK[0]; DMN-8600 drived out VO_CLK pin
0
1
VI_CLK[0]; DMN-8600 drived out VO_CLK pin
0
2
Externally generated video output clock; VO_CLK pin in input
Содержание DMN-8600
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