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)： 43/99頁
文件大?。?/td> 663K
代理商： TVP3025-175
2–29
Byte 000
Byte 001
Byte 010
Byte 011
Byte 3F0
Byte 3F1
Byte 00F
Byte 01F
Byte 3FF
. . . . . . . .
. . . . . . . .
.
.
.
.
.
. . . . . . . .
D7, D6 D5, D4 D3, D2 D1, D0
4 Pixels
64
Pixels
64
Pixels
Upper Left Corner as
Displayed on Screen
Figure 2–10. Cursor-RAM Organization
2.3.9.2
The 64
×
64
×
2 cursor RAM provides two bits of cursor information on every pixel clock (DOTCLK) cycle
during the 64
×
64 cursor window. Cursor-control register bit 4 specifies whether the XGA mode
(default = logic 0) or X-window mode (logic 1) standard is used to interpret the cursor information. The two
bits of cursor pixel data determine the cursor appearance as shown in the table below:
Two-Color 64
×
64 Cursor
RAM
COLOR SELECTION
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
Cursor color 0 and 1: These colors are set by writing to the cursor-color 0 and cursor-color 1 registers
[index 23–28 (hex)].
Transparent: The underlying pixel color is displayed.
Complement: The ones complement of the underlying pixel color is displayed.
2.3.9.3
The cursor-position (x,y) registers are used in conjunction with the sprite-origin (x,y) registers to position
the 64
×
64 cursor on the display screen. The cursor-position (x,y) registers specify the location of the cursor
on the display screen relative to the first displayed pixel out of blank. The sprite-origin (x,y) register specifies
where to origin the 64
×
64 cursor array relative to the cursor position (x,y). Upon reset, the sprite-origin (x,y)
register automatically defaults to (31, 31). Therefore, the cursor-position (x,y) registers specify the location
on the active display screen of the 31st column and 31st row (counting from top left) of the 64
×
64 cursor
array. The crosshair cursor intersects at the center of the sprite cursor area.
64
×
64 Cursor Positioning
The sprite-origin (x,y) registers can be programmed from (0,0) to (63,63). For example, if the sprite-origin
(x,y) registers are programmed to (0,0), the 64
×
64 cursor array is located in the lower right quadrant with
respect to the cursor position (x,y). Figure 2–11 illustrates this more clearly by showing the
64
×
64 cursor array location relative to the cursor position (x) for different sprite-origin values.
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)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP3025-175PCE 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3025-220MDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3025-220PCE 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
TVP3026 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3026-135AMDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
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