參數(shù)資料
型號(hào)： TVP3010M
廠商： Texas Instruments, Inc.
英文描述： Video Interface Palette
中文描述： 視頻接口面板
文件頁(yè)數(shù)： 42/90頁(yè)
文件大?。?/td> 491K
代理商： TVP3010M
2–26
For the crosshair cursor to be displayed, the window start and window stop registers must contain locations
on the active screen. When one wishes to remove the crosshair cursor temporarily from the screen without
disabling the function, the window start registers can be programmed with a location that is off the active
screen.
The crosshair cursor and the auxiliary-window function utilize the same set of window registers. Therefore,
care must be taken if the crosshair cursor is to be displayed when the auxiliary-window function is enabled,
ACR0 = 1 (see Section 2.6).
2.5.5
Both the user-definable 64
×
64 cursor and the crosshair cursor may be enabled for display simultaneously,
allowing the generation of custom crosshair cursors. As previously mentioned, the sprite origin (X and Y)
register specifies the 64
×
64 cursor-pattern location relative to the cursor position and crosshair cursor.
Dual-Cursor Positioning
Figure 2–8 illustrates displaying the dual cursors, showing the relationship between the auxiliary window,
the crosshair cursor, and the 64
×
64 cursor for the case where the sprite origin (X and Y) register is set to
(31, 31).
Window Start (X, Y)
Cursor Position (X, Y)
Crosshair Cursor
64
×
64 Cursor Area
Window Stop (X, Y)
Crosshair Window
Figure 2–8. Dual-Cursor Positioning
Figure 2–9 shows one possible custom cursor that could be created by setting the sprite origin register to
(0,0) and drawing an arrow in 64
×
64 cursor RAM. The cursor window has been set to full screen by setting
the window start (X and Y) register to 0000 (hex) and the window stop registers to the last active-pixel
location. The 64
×
64 cursor area could be located in different locations about the cursor position by
programming the sprite origin (X and Y) registers to different values as described earlier (see subsection
2.5.3).
Cursor Position (X, Y)
Crosshair Cursor
64
×
64 Cursor Area
Sprite Origin = (0, 0)
Crosshair Window = Full Screen
Figure 2–9. One Possible Custom Cursor Creation
相關(guān)PDF資料
PDF描述
TVP3020-175 Video Interface PALETTE(視頻接口調(diào)色器)
TVP3020-135 Video Interface PALETTE(視頻接口調(diào)色器)
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TVP3030-175 Video Interface PALETTE Exract(1600×1200，24位真彩色視頻接口調(diào)色器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP3020 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3020-135MDN 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TVP3020-135PCE 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
TVP3020-175MDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3020-175PCE 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
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