參數(shù)資料
型號(hào): TVP3025-175
廠商: Texas Instruments, Inc.
英文描述: Video Interface PALETTE(三PLL,視頻接口調(diào)色器)
中文描述: 視頻接口盒(三鎖相環(huán),視頻接口調(diào)色器)
文件頁數(shù): 49/99頁
文件大?。?/td> 663K
代理商: TVP3025-175
2–35
In this way, the video timing relationship is maintained since the same method and pipeline delay are applied
to the SYSBL and VGABL signals.
Figure 2–14 demonstrates the use of OVS to produce a custom overscan screen border.
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Overscan Border
OVS
Blank
Figure 2–14. Overscan
2.3.12
The TVP3025 supports a user-programmable horizontal zooming function of 2, 4, 8, 16, or 32
x.
Zooming
can be controlled through the auxiliary control register on the indirect register map as shown by the following
table. The RCLK divide ratio also has to be modified in the output-clock-selection register.
Horizontal Zooming
ACR7
ACR6
ACR5
HORIZONTAL ZOOM
0
0
0
1x (default)
0
0
1
2x
0
1
0
4x
0
1
1
8x
1
0
0
16x
1
0
1
32x
When one of the horizontal zooms (besides 1x) is chosen, the internal pixel multiplexer is configured such
that it replicates the pixel data on successive dot clocks by the number of times specified by ACR(5–7). Also
the RCLK divide ratio must be modified in the output-clock-selection register to facilitate the pixel replication.
The new RCLK divide ratio should be chosen as the old RCLK divide ratio multiplied by the zoom factor.
It is recommended that the zoom only be changed during vertical retrace.
The horizontal zoom function applies only to the pixel port (P0–63) data. VGA data is not zoomed.
相關(guān)PDF資料
PDF描述
TVP3030-175 Video Interface PALETTE Exract(1600×1200,24位真彩色視頻接口調(diào)色器)
TVP3030-220 Video Interface PALETTE Exract(1600×1200,24位真彩色視頻接口調(diào)色器)
TVP3030-250 Video Interface PALETTE Exract(1600×1200,24位真彩色視頻接口調(diào)色器)
TVP3409-170 Advanced Video Interface PALETTE(雙PLL,視頻接口調(diào)色器真彩色CMOS)
TVP3409-135 Advanced Video Interface PALETTE(雙PLL,視頻接口調(diào)色器真彩色CMOS)
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