參數(shù)資料
型號(hào)： 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(cè)儀顯示展示
文件頁(yè)數(shù)： 28/48頁(yè)
文件大小： 1004K
代理商： STV9936PS
RAM Specification
STV9936P/S
28/48
5
RAM Specification
5.1
Character Coding
Each character to display is coded with 11 bits in the RAM with the following addressing method:
G
Character Code: Bits RC[7:0] are used to address the ROM Code
G
Color Code: Bits CB[2:0] are used to select 1 of the 8 color-boxes in the color shop of the
corresponding OSD window.
5.2
Window Memory Allocation
The 4 OSD windows can be distributed differently. But the displayable windows will always contain
a total of 22 blocks (1 block consists of 32 characters).
5.3
Memory Size Allocation
The total number of characters or spaces is up to 704 with a maximum window size of 16 rows of 32
characters.
The character codes of each window are allocated to a specific memory space. This memory space
is programmable for each window. The window size must be less than or equal to its memory
allocation. Any window size can be modified within its specific memory space, the other windows
are not affected by this operation.
Table 29: Character Coding
FWR
FAC
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
See
Table 3
CB[2:0]
RC[7:0]
Figure 13: Window Memory Space
Window 0
Color-boxes
10 Blocks
4 Blocks
4 Blocks
4 Blocks
1 Block
Window 1
Window 2
Window 3
Window 4
Displayable
Windows
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