參數(shù)資料
型號(hào): M37373M8-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP52
封裝: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-52
文件頁數(shù): 64/110頁
文件大?。?/td> 1537K
代理商: M37373M8-XXXSP
b7
b0
57
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37273M8-XXXSP
M37273E8SP
(5) Memory for OSD
There are 2 types of memory for OSD : ROM for OSD (addresses
140016 to 3BFF16) used to store character dot data (masked) and
RAM for OSD (addresses 080016 to 087F16) used to specify the char-
acters and colors to be displayed. The following describes each type
of memory.
ROM for OSD (addresses 140016 to 3BFF16)
The ROM for OSD contains dot pattern data for characters to be
displayed. To actually display the character code stored in this ROM,
it is necessary to specify them by writing the character code inherent
to each character (code determined based on the addresses in the
ROM for OSD) into the RAM for OSD.
Data of the character font is specified shown in Figure 59.
Fig. 59. OSD Character Data Storing Form
OSD ROM address of character font data
AD15 AD14 AD13 AD12 AD11 AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
Line number
Character code
Font bit
= “0A16” to “1D16
= “0016” to “FF16” (“7F16” and “8016” cannot be used)
= 0 : left font 1 : right font
OSD ROM
address bit
Line number/character
code/font bit
0
Line number
Character code
Font
bit
0A
000016
7FF016
7FF816
601C16
600C16
11
0B
0C
0D
0E
0F
10
12
601C16
7FF816
7FF016
630016
638016
61C016
60E016
607016
19
13
14
15
16
17
18
603816
601C16
600C16
000016
1D
1A
1B
1C
b0 b7
Line
number
Left
font
Right
font
Data in
OSD
ROM
Character font
0
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