參數(shù)資料
型號: HMS97C7134
英文描述: [Monitor]
中文描述: [顯示器]
文件頁數(shù): 67/86頁
文件大?。?/td> 1508K
代理商: HMS97C7134
HMS91C7134
November.2001 ver1.0
67
19.10 Clamp pulse generator
The clamp pulse is generated by setting CLMPEN and always ac-
companies the HSYNCout pulse, even in the free running mode.
This block generates a clamping pulse with programmable pulse
width, determined by CPW. It can be started at the front porch
(CFB reset) or at the back porch (CFB set), and the polarity can
be set with COPOL.
Table 19-8 Clamping pulse width
19.11 Pattern generator
This generator is used for test pattern generation when in free run-
ning mode.Four picture can be selected : a white, a cross hatch, a
balck and inverted cross hatch pictures.When not in free running
mode , the output is disabled. The pattern output can be used for
burn-in test or e.g. for quick servicing without the need of a video
source. The displayed pattern might look different in the different
timing modes,symmetric display is not guaranteed.
19.12 Suspend mode
The complete Sync processor can be set into a suspend mode for lowering the power consumption by means of signal MDDN.
Table 19-9 Suspend mode
Table 19-10 Mode detection control register.(MDCON : 0F1H)
CPW[2:0]
Clamping pulse width
000(11)
5 x 83ns
001(11)
9 x 83ns
010(11)
13 x 83ns
011(11)
17 x 83ns
100(11)
21 x 83ns
101(11)
25 x 83ns
110(11)
29 x 83ns
111(11)
33 x 83ns
MDDN
Mode
0
Sync. processor is running.(default)
1
Sync. processor is disabled.
7
6
5
4
-
3
-
2
1
0
MDDN
CLMPEN
PATEN
VINTE
HSEL
VSEL
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