参数资料
型号: M37161MF-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件页数: 89/129页
文件大小: 1092K
代理商: M37161MF-XXXSP
Rev.1.00
2003.11.25
page 62 of 128
M37161M8/MA/MF-XXXSP/FP,M37161EFSP/FP
8.10.5 Memory for OSD
There are 2 types of memory for OSD: OSD ROM used to store
character dot data and OSD RAM used to specify the characters and
colors to be displayed.
OSD ROM : addresses 1140016 to 13BFF16,
addresses 1D40016 to 1FBFF16
OSD RAM : addresses 080016 to 087F16
Fig. 8.10.15 Character Font Data Storing Address
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 area
1 : Right area
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
b0
b7
Line
number
Left
area
Right
area
Data in
OSD
ROM
Character font
0
AD16
1
(1) OSD ROM
Character font data is stored in the character font area of OSD ROM,
and color dot font data is stored in color dot font area.To specify the
kinds of character font, it is necessary to write the character code
into the OSD RAM.
The storing address of character font data is shown in Fig. 8.10.15,
and the storing address of color dot font data is shown in Fig. 8.10.16.
A character font is 254 kinds,color dot font is 62 kinds is storable.
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