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參數(shù)資料
| 型號： | MTV030 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | On-Screen Display with Auto-Sizing Controller |
| 中文描述： | 屏幕顯示與自動上漿控制器 |
| 文件頁數(shù)： | 10/21頁 |
| 文件大?。?/td> | 372K |
| 代理商： | MTV030 |
10/21
MTV030 Revision 1.0 10/15/1999
MTV030
MYSON
TECHNOLOGY
3.10 Window and frame control
The display frame position is completely controlled by the contents of VERTD and HORD. The window size
and position control are specified in column 0 to 11 on row 15 of memory map, as shown in Figure 5. Window
1 has the highest priority, and window 4 is the least, when two windows are overlapping. More detailed infor-
mation is described as follows:
1. Window control registers,
ROW 15
START(END) ADDR - These addresses are used to specify the window size. It should be noted that when the
start address is greater than the end address, the window will be disabled.
WEN - Enable the relative background window display.
WSHD - Enable shadowing on the window.
R, G, B - Specify the color of the relative background window.
2. Frame control registers,
ROW 15
VERTD - Specify the starting position for vertical display. The total steps are 256, and the increment of each
step is 4 Horizontal display lines. The initial value is 4 after power up.
HORD - Define the starting position for horizontal display. The total steps are 256, and the increment of each
step is 6 dots. The initial value is 15 after power up.
CH6-CH0 - Define the character vertical height, the height is programmable from 18 to 71 lines. The character
vertical height is at least 18 lines if the contents of CH6-CH0 is less than 18. For example, when
the contents is " 2 ", the character vertical height is regarded as equal to 20 lines. And if the con-
Column
0,3,6,OR 9
b7
b6
b5
b4
b3
b2
b1
b0
ROW START ADDR
MSB
LSB
ROW END ADDR
MSB
LSB
Column
1,4,7,OR 10
b7
b6
b5
b4
b3
b2
b1
b0
COL START ADDR
MSB
LSB
WEN
-
WSHD
Column
2,5,8,OR 11
b7
b6
b5
b4
b3
b2
b1
b0
COL END ADDR
MSB
LSB
R
G
B
Column 12
b7
b6
b5
b4
b3
b2
b1
b0
VERTD
MSB
LSB
Column 13
b7
b6
b5
b4
b3
b2
b1
b0
HORD
MSB
LSB
Column 14
b7
-
b6
CH6
b5
CH5
b4
CH4
b3
CH3
b2
CH2
b1
CH1
b0
CH0
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