參數(shù)資料
型號： AL128
廠商： Electronic Theatre Controls, Inc.
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:55; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:22; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
中文描述： 即插即用VGA到的NTSC / PAL制式轉換器
文件頁數(shù)： 32/45頁
文件大?。?/td> 498K
代理商： AL128
AL128
April 2, 1999
32
Make sure that:
(GinCapHSize * 16) <= 800(AL100/128 built-in line buffer size)
(GinCapHSize * 16) <= (reg#28h<6:0> * 16)
For one-field memory configuration, the value of (GinCapHSize * 16) * (reg#25h<6:0> *
8) * 2 must be less or equal to the total field memory size on board.
For two-field memory configuration, the value of (GinCapHSize * 16) * (reg#25h<6:0> *
8) * 2 * 2 must be less or equal to the total field memory size on board.
24h:
Source Vertical Size (R/W) [GINVSIZE]
GinVSize
<6:0>
SoftVSize
<7>
Vertical size of graphic input (unit: 8 lines)
Override hardware detected V size value and use GinVSize
if set to 1.
This register defines the total number of input lines scanned, which starting position is
defined by reg#22h (zoom off) or reg#2Bh (zoom on).
The scanned input lines are scaled (down-sampled), filtered and captured into field
memory. The destination down-sampled size is defined in reg#25h.
The actual vertical source size is defined as: GinVSize * 8.
The starting position to scan input lines is defined by reg#22h (zoom off) or reg#2Bh
(zoom on).
See reg#26h for more description.
Please also refer to Section 6.3 Video Timing for better understanding
25h:
Down-sampled Vertical Size (destination) [CAPVSIZE] (R/W)
CapVSize
<6:0>
(unit: 8 lines)
CapVSizeEn
<7>
enable software vertical size
This register defines the total number of scaled (down-sampled) and filtered video lines
captured into the field memory. The actual number is defined as: CapVSize * 8.
For one-field memory configuration, the value of (reg#23h<6:0> * 16) * (CapVSize * 8) *
2 must be less or equal to the total field memory size on board.
For two-field memory configuration, the value of (reg#23h<6:0> * 16) * (CapVSize * 8)
* 2 * 2 must be less or equal to the total field memory size on board.
See reg. #26h for more description
Please also refer to Section 6.3 Video Timing for better understanding
26h:
Y Downscale Ratio [CAPVRATIO] (R/W)
CapVRatio
<3:0>
0000
0001
xxxx
No line drop
Drop 3 lines out of 10 lines
(from 0010 to 1110): drop one line for every
xxxx+1 lines
vertical scale ratio defined as N/M
1111
相關PDF資料
PDF描述
AL1402 Circular Connector; No. of Contacts:100; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:22; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
AL251 Video Scan Doubler
AL3201 Circular Connector; No. of Contacts:19; Series:D38999; Body Material:Metal; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:15-19
AL440B Circular Connector; No. of Contacts:128; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No
AL440B-12 Circular Connector; No. of Contacts:56; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:24-4 RoHS Compliant: No
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