參數(shù)資料
型號(hào): 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(yè)數(shù): 15/45頁(yè)
文件大?。?/td> 498K
代理商: AL128
AL128
April 2, 1999
15
6.2 Hardware and Software Control Modes
The AL128 is powered up to a default state depending on the hardware mode-setting pins. Eight of
these hardware configuration pins are disabled by setting SoftConfig (bit 4 of register 03h) to one,
and configurations are decided by the values of register 0x02, programmable by software.
By default, AL128 major functions can be controlled by On Screen Display Menu (OSDM) push
buttons. The registers related to these functions have no effect on those On Screen Display Menu
functions unless DisButton (bit 3 of register 03h) is set to one. When this bit is set to one, the
external OSDM push buttons are deactivated and those functions are controlled by software
programming. The following table lists the functions that can be controlled by either push buttons or
software programming, and their corresponding registers.
Function
Register Name
Register Index
Sharpness
VFltMode
33h<2:0>
Zoom
Zoom
ZoomEn
20h<1:0>
20h<7>
Pan
GinHStartDlt
GinVStartDlt
GinHStZoomDlt
GinVStZoomDlt
21h<7:0>
22h<7:0>
2Bh<6:0>
2Ch<6:0>
Underscan
SoftUdScan
33h<6>
Position
TvHStartDlt
TvVStartDlt
52h<7:0>
51h<7:0>
Brightness
TvBright
50h<4:3>
Color Bar
ColorBar
50h<1>
Details about the programming can be found in the Register Definition Section.
6.3 Video Timing
Although the AL128 is designed to be plug-&-play, it is programmable to meet special requirements.
This is especially advantageous when AL422 is used as field memory since larger memory capacity
means higher sampling resolution.
Horizontal capture and display timing is as follows:
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