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參數(shù)資料
| 型號： | STV9936PS |
| 英文描述： | 120MHZ ON SCREEN DISPLAY FOR MONITORS WITH 4 TRUE INDEPENDANT WINDOW DISPLAYS |
| 中文描述： | 120MHz的屏幕顯示的4真獨(dú)立的窗口監(jiān)測儀顯示展示 |
| 文件頁數(shù)： | 29/48頁 |
| 文件大小： | 1004K |
| 代理商： | STV9936PS |
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STV9936P/S
RAM Specification
The user must reserve a memory space for the largest window. According to the example shown in
Figure 5
, the total number of characters/spaces are:
For example, to change the size of Window 3 from 3 rows of 6 characters to 5 rows of 4 characters,
the resulting size is 20 characters. The number of rows increases and the number of characters per
row decreases. The required memory is at least 20 characters.
Note:
A space is considered as being a character.
The memory allocation is made by blocks of 32 characters.
The maximum size of a window is 16 rows of 32 characters, or 512 characters. This corresponds to
16 blocks of 32 characters.
1 block is reserved for the color-boxes (see
Chapter 4: Character Specifications on page 19
),
leaving 22 blocks of 32 characters for character codes (704 characters maximum).
The RAM allocation for each window is coded in bits ALWi[3:0]. Window 4 memory allocation uses
the remaining memory space.
The number of memory blocks allocated for window “i” is (ALWi +1), the range of allocation is 1 to 16
blocks of 32 characters. The total number of blocks is 22.
Note:
If the user changes only 1 window allocation, the RAM addresses of the following windows change.
Consequently we advise you to write the allocation when the windows are not displayed to avoid
false images.
Table 30: Window Sizes
Window
Size
Window 1
28
Window 2
20
Window 3
18
Window 4
16
Total
82
Table 31: Window RAM Allocation
FWR
FAC
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
80h
09h
39h
ALW2[3:0]
ALW1[3:0]
80h
0Ah
3h
ALW3[3:0]
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV9936S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:120-MHz On-Screen Display for Monitors with 4 True Independent Window Displays |
| STV9937 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:120-MHz On-Screen Display for Monitors including PictureBooSTTM and 4 True Independent Window Displays |
| STV9937P | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:120-MHz On-Screen Display for Monitors including PictureBooSTTM and 4 True Independent Window Displays |
| STV9937P/AA | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:120-MHz On-Screen Display for Monitors including PictureBooSTTM and 4 True Independent Window Displays |
| STVB/3 20F AB VV 7-00 | 制造商:ERNI Electronics 功能描述:STVB/3 20F AB VV 7-00 |
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