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(zhuǎn)換器
文件頁數(shù): 31/45頁
文件大?。?/td> 498K
代理商: AL128
AL128
April 2, 1999
31
<3>
<4>
<5>
<6>
<7>
Reserved
Reserved
Reserved
Reserved
Zoom enable ** zoom **
Set to 0 when in basic mode.
ZoomEn
21h:
Delta of Horizontal Start (R/W) [GINHSTARTDLT]
GinHStartDlt
<7:0>
Delta of default horizontal capture start position. (unit: 8
pixels) ** X Pan **
This register does not apply to zoom mode.
The actual horizontal capture start position is defined as:
(default horizontal capture start position) + (GinHStartDlt * 8).
The value of GinHStartDlt is signed, and its value is between –128 and 127.
Please refer to Section 8.3, AL128 Plug & Play Hardware Table for the default horizontal
capture start positions.
22h:
Delta of Vertical Start (R/W) [GINVSTARTDLT]
GinVStartDlt
<7:0>
Bit-9 to bit-2 of GinVStartDlt; bit 1,0 are defined in Register
0x26. (Unit: one line) ** Y Pan **
This register does not apply to zoom mode.
The actual vertical capture start position is defined as:
(default vertical capture start position) + (GinVStartDlt * 4).
The value of GinVStartDlt is signed, and its value is between –128 and 127.
Please refer Section 8.3, AL128 Plug & Play Hardware Table for the default vertical
capture start positions.
23h:
Horizontal Capture Size (R/W) [GINCAPHSIZE]
GinCapHSize
<6:0>
SoftCapHSize
<7>
Horizontal capture size (Unit: 16 pixels)
Override default H capture size value and use GinCapHSize
if set to 1.
This register defines the number of pixels of each valid horizontal line, which length is
defined by reg#22h (zoom off) or reg#2Ch (zoom on). Only the active horizontal lines are
captured, and the range is defined by reg#24h and reg#25h.
The actual horizontal capture size is defined as: GinCapHSize * 16.
The starting capture position is defined by reg#21h (zoom off) or reg#2Bh (zoom on).
The destination total displayed active pixels is defined as:
GinCapHSize * 16 * (scale-up ratio defined in reg#27h)
Please also refer to Section 6.3 Video Timing for better understanding.
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