參數(shù)資料
型號: 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): 69/99頁
文件大?。?/td> 663K
代理商: TVP3025-175
2–55
be written when the cursor location is updated. Internal x- and y-position registers are loaded after the upper
byte of y has been written to ensure one cursor pattern per frame at the correct location. The cursor pattern
is displayed at the last cursor location written.
Cursor positioning is relative to blank (either VGABL or SYSBL depending on whether the device is in VGA
mode). The cursor position is not dependent on OVS (see Figure 2–18). The reference point of the cursor
(row 0, column 0) is in the lower right corner. The cursor x position is relative to the first rising edge of LCLK
when SYSBL is sampled high in the nonVGA modes. In the VGA modes, the cursor position x is relative
to the first rising edge of CLK0 when VGABL is sampled high. The y position is similarly relative, but only
after the vertical blanking interval has been determined. The vertical blanking interval is determined by more
than one horizontal sync pulse during blank. When in multiplexed modes other than 1:1, the cursor timing
is based on the dot clock and LCLK. Note that the BT485 CBLANK and CDE signals are the same as the
TVP3025 OVS and SYSBL input signals, respectively. Interlaced cursor operation is not supported by the
TVP3025.
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OVS
Blank
Overscan Border
Y
Display Area
Cursor Area
Figure 2–18. Cursor Positioning
The cursor supports two modes of operation as detailed in Table 2-22. Command register bits CR20 and
CR21 determine which mode the cursor is supporting. See Section 2.4.15 for command register bit
definitions.
Table 2–22. Cursor Color Modes
PLANE 1
PLANE 2
XGA MODE
X-WINDOW MODE
0
0
Cursor color 0
Transparent
0
1
Cursor color 1
Transparent
1
0
Transparent
Cursor color 0
1
1
Complement
Cursor color 1
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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