參數(shù)資料
型號(hào)： TVP3020-175
廠商： Texas Instruments, Inc.
英文描述： Video Interface PALETTE(視頻接口調(diào)色器)
中文描述： 視頻接口盒（視頻接口調(diào)色器）
文件頁(yè)數(shù)： 87/98頁(yè)
文件大?。?/td> 582K
代理商： TVP3020-175
E–3
Cursor Position (x, y) Register
These registers are used to specify the (x,y) coordinate of the intersection of the cross hair cursor. They
are also used in conjunction with the Sprite Origin register to specify the location of the 64 x 64 cursor area
(see 2.5.3). The Cursor Position X register is made up of the Cursor Position X LSB (CPXL) and the Cursor
Position X MSB (CPXM); the Cursor Position Y register is made up of the Cursor Position Y LSB (CPYL)
and the Cursor Position Y MSB (CPYM). All registers are initialized to 00 (hex), and may be written to or
read from by the MPU at any time. The Cursor Position is not updated until the vertical retrace interval after
CPYM has been written to by the MPU.
CPXL and CPXM are cascaded to form a 12–bit Cursor Position X register. Similarly, CPYL and CPYM are
cascaded to form a 12–bit Cursor Position Y register. Bits D4–D7 of CPXM and CPYM are always a logical
zero.
Table J–3.
Cursor Position X MSB
Cursor Position X LSB
(CPXM)
(CPXL)
Data bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
X Address
0
0
0
0
11
10
9
8
7
6
5
4
3
2
1
0
Index = 01h
Index = 00h
Table J–4.
Cursor Position Y MSB
Cursor Position Y LSB
(CPYM)
(CPYL)
Data bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Y Address
0
0
0
0
11
10
9
8
7
6
5
4
3
2
1
0
Index = 03h
Index = 02h
The Cursor Position X value to be written is calculated as follows:
Cx = desired display screen x position
Values from 0000 (hex) to 0fff (hex) may be written into the Cursor Position X register.
The Cursor Position Y value to be written is calculated as follows:
Cy = desired display screen y position
Values from 0000 (hex) to 0fff (hex) may be written into the Cursor Position Y register.
The values written into the Cursor Position X and Y registers should be relative to the first displayed pixel
on the screen; i.e. (0,0).
相關(guān)PDF資料
PDF描述
TVP3020-135 Video Interface PALETTE(視頻接口調(diào)色器)
TVP3025-135 Video Interface PALETTE(三PLL，視頻接口調(diào)色器)
TVP3025-175 Video Interface PALETTE(三PLL，視頻接口調(diào)色器)
TVP3030-175 Video Interface PALETTE Exract(1600×1200，24位真彩色視頻接口調(diào)色器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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
TVP3020-200MDN 制造商:Rochester Electronics LLC 功能描述:- Bulk
TVP3020-200PCE 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)
TVP3020-220MDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
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