參數(shù)資料
型號(hào): TVP3026-175M
廠商: Texas Instruments, Inc.
英文描述: Video Interface PALETTE Exract(組合像素模式視頻接口調(diào)色器)
中文描述: 視頻接口調(diào)色板Exract(組合像素模式視頻接口調(diào)色器)
文件頁數(shù): 58/107頁
文件大?。?/td> 707K
代理商: TVP3026-175M
2–44
2.15.5
Cursor-Position (x, y) Registers (Direct Register: 1100–1111, Access: R/W,
Default: Uninitialized)
These registers specify the (x,y) coordinate of the lower right corner of the cursor, see Table 2-30. All
registers are uninitialized and may be written to or read from by the MPU at any time.
Table 2–30. Cursor-Position (x, y) Registers
CURSOR-POSITION X MSB
CURSOR-POSITION X LSB
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
X Position
0
0
0
0
X11
X10
X9
X8
X7
X6
X5
X4
X3
X2
X1
X0
Direct register 1101
Direct register 1100
CURSOR-POSITION Y MSB
CURSOR-POSITION Y LSB
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
Y Position
0
0
0
0
Y11
Y10
Y9
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Direct register 1111
Direct register 1110
The cursor-position X and Y values to be written are calculated as follows:
CPx = desired display screen x position for upper left corner of cursor + 0x40
CPy = desired display screen y position for upper left corner of cursor + 0x40
Values from 0 to 4095 (0xFFF) can be written into the cursor-position X and Y registers. The values written
into the cursor-position X and Y registers are the screen coordinates for the lower right corner of the cursor.
When zero is written to either the CPx or CPy registers, the cursor is positioned off screen. See subsection
2.7.2, Cursor Positoning
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