參數(shù)資料
型號(hào): GS4911B
廠商: Gennum Corporation
英文描述: HD/SD/Graphics Clock and Timing Generator with GENLOCK
中文描述: 高清/標(biāo)清/圖形時(shí)鐘和定時(shí)發(fā)生器鎖相
文件頁(yè)數(shù): 20/113頁(yè)
文件大?。?/td> 1017K
代理商: GS4911B
GS4911B/GS4910B Data Sheet
36655 - 2
April 2006
20 of 113
1.4 Pre-Programmed Recognized Video and Graphics Standards
Table 1-2
describes the video and graphics standards automatically recognized by
the GS4911B/GS4910B. Any one of the 36 different video formats and 16 different
graphic display formats listed below can be applied to the GS4911B/GS4910B and
automatically detected by the reference format detector. Moreover, each format,
with the exception of VID_STD[5:0] = 2, 52, 53, or 54, is available for output on the
timing output pins by setting the VID_STD[5:0] pins.
In addition to the pre-programmed video standards listed in
Table 1-2
, custom
output timing signals may be generated by the GS4911B/GS4910B. The custom
timing parameters are programmed in the host interface when VID_STD[5:0] is set
to 62 (see
Section 3.10 on page 74
).
Setting VID_STD[5:0] to 63 will cause the device to produce an output format with
identical timing to the detected input reference.
If desired, the external VID_STD[5:0] pins may be ignored by setting bit 1 of the
Video_Control register, and the video standard may instead be selected via the
VID_STD[5:0] register of the host interface (see
Section 3.12.3 on page 79
).
Although the external VID_STD[5:0] pins will be ignored in this case, they should
not be left floating.
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