參數(shù)資料
型號: PCE84C882
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Microcontroller for monitor OSD and auto-sync applications(監(jiān)視器屏幕顯示和自動同步應用的微控制器)
中文描述: 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PDIP42
封裝: 0.600 INCH, PLASTIC, SDIP-42
文件頁數(shù): 22/60頁
文件大?。?/td> 409K
代理商: PCE84C882
1996 Jan 08
22
Philips Semiconductors
Preliminary specification
Microcontroller for monitor OSD
and auto-sync applications
PCE84C882
10 DISPLAY RAM ORGANIZATION
The display RAM is organized as 64
×
10 bits. The general
format of each RAM location is as follows. Bits <9-4> hold
character data (62 customer designed character fonts plus
two reserved codes). Bits <3-0> contain the attributes of
the character font, for example colour, character size,
blinking etc.
Display RAM is updated during the vertical back-tracing
period (Vsync will generate an interrupt when it becomes
active).
10.1
Description of display RAM codes
There are three data formats for display RAM code:
1.
Character Font Code
2.
Carriage Return Code
3.
Space Code.
The three data formats are shown in Tables 5, 6 and 7.
Table 5
Format of Character Font Code
Table 6
Format of Carriage Return Code
Table 7
Format of Space Code
9
8
7
6
5
4
3
2
1
0
C5
C4
C3
C2
C1
C0
T3
T2
T1
T0
Blink
Character Font Code (00H - 3DH)
Foreground colour
9
8
7
6
5
4
3
2
1
0
C5
C4
C3
C2
C1
C0
T3
Character size
T2
T1
Line Spacing
T0
Carriage Return Code (3EH)
9
8
7
6
5
4
3
2
1
0
C5
C4
C3
C2
C1
C0
T3
T2
T1
T0
End
Space Code (3FH)
Background colour
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