參數(shù)資料
型號： VPX3224E
廠商： MICRONAS SEMICONDUCTOR HOLDING AG
英文描述： Video Pixel Decoders
中文描述： 視頻解碼器像素
文件頁數(shù)： 30/92頁
文件大?。?/td> 616K
代理商： VPX3224E
ADVANCE INFORMATION
VPX 322xE
MICRONAS INTERMETALL
30
4
5
6
7
18
19
20
21
263
262
261
267
268
269
270
281
282
283
284
524
525
Field 1
Field 2
264
265
266
4
5
6
7
18
19
20
21
263
262
261
264
265
266
1
2
3
4
5
6
7
18
19
20
21
263
262
261
264
265
260
523
260
260
Fig. 2–34:
Mapping for 525/60 line systems
There are some restrictions in the horizontal window
definition. The total number of active pixels (NPix) must
be an even number. The maximum value for NPix should
be 800. Values up to 864 are possible, but for short input
lines, video data is not guaranteed at the end of the line
since VACT will be interrupted at the beginning of the
next line. HLength should also be an even number. Ob-
viously, the sum of HBegin and HLength may not be
greater than NPix.
Window boundaries are defined by writing the dimen-
sions into the associated WinLoadTab and then setting
the corresponding latch bit in the control word FP-RAM
0x140 [latwin]. Window definition data is latched at the
beginning of the next video frame. Once the WinLoad-
Tab data has been latched, the latch bit in the Control
word is reset. By polling the Infoword (FP-RAM 0x141),
the external controller can know when the window
boundary data has been read. Window definition data
can be changed only once per frame. Multiple window
definitions within a single frame time are ignored and
can lead to error.
Field 1
Field 2
335
336
337
338
622
623
624
625
621
22
23
24
25
311
310
309
312
313
308
22
23
24
25
311
310
309
312
313
308
22
23
24
25
311
310
309
312
308
Fig. 2–35:
Mapping for 625/50 line systems
1
2
3
4
1
2
3
4
314
1
315
2
316
317
3
4
2.12. Temporal Decimation
To cope with bandwidth restrictions in a system, the VPX
supports temporal dropping of video frames via sup-
pression of the VACT signal. Dropping will be applied for
video windows only. There is no influence on the state
of the VBI-window. This mode can be activated for each
video window by setting the enable flag in the corre-
sponding WinLoadTab (FP-RAM 0x121/12B). The
selection in FP-RAM 0x157 determines how many
frames will be output within an interval of 3000 frames.
Note that this selection is applied for both video win-
dows, but decimation can be enabled for each window
separately. The number of valid frames is updated only
if the corresponding latch flag in FP-RAM 0x140 [lattdec]
is set. Frame dropping with temporal decimation can be
combined with the field disable flags (FP-RAM
0x121/12B). Within valid video frames, each field type
can be disabled separately.
相關(guān)PDF資料
PDF描述
VPX322XE Video Pixel Decoders
VQ1000J N-Channel Enhancement-Mode MOSFET Transistor(最小漏源擊穿電壓60V,夾斷電流0.225A的N溝道增強(qiáng)型MOSFET晶體管)
VQ1000J N-Channel 60-V (D-S) MOSFET
VQ1001J Dual N-Channel 30-V (D-S) MOSFET with Schottky Diode
VQ1001J N-Channel Enhancement-Mode MOSFET Transistor(最小漏源擊穿電壓30V，夾斷電流0.83A的N溝道增強(qiáng)型MOSFET)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VPX3225D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video Pixel Decoders
VPX3225D-C3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor
VPX3225E 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Pixel Decoders
VPX3226E 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Pixel Decoders
VPX322XE 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Pixel Decoders
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