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參數(shù)資料
| 型號： | PCA84C646 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Microcontrollers for TV tuning control and OSD applications(應用于TV調(diào)頻和OSD的微控制器) |
| 中文描述： | 微控制器的控制和調(diào)整（應用于電視調(diào)頻和OSD的微控制器應用的電視OSD） |
| 文件頁數(shù)： | 20/72頁 |
| 文件大?。?/td> | 564K |
| 代理商： | PCA84C646 |
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1995 Jun 15
20
Philips Semiconductors
Preliminary specification
Microcontrollers for TV tuning
control and OSD applications
PCA84C646; PCA84C846
Table 12
Format of Carriage Return Code
Table 13
Description of Carriage Return Code bits; format is shown in Table 12
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)
SYMBOL
DESCRIPTION
C5 to C0
If bits <9-4> hold 3EH, then this is the Carriage Return Code. The current display line is terminated
(a transparent pattern appears on the screen) and the next character will be displayed at the beginning of
the next line.
Bits <3-2> select the size of the of the character to be displayed on the next line; see Table 14.
Bits <1-0> determine the spacing between lines of displayed characters. Spacing is a multiple of the
number of horizontal scan lines. In order to prevent vertical jumping of the display, the first line should be
a non-displayed line i.e. the Carriage Return Code.
The line spacing for this code must not be zero; see Table 15.
T3 to T2
T1 to T0
Table 14
Selection of character size
Note
1.
H is the OSD clock period; V is the number of
horizontal scan lines per dot.
T3
T2
CHARACTER DOT SIZE
(1)
0
0
1
1
0
1
0
1
1H/1V
2H/2V
3H/3V
4H/4V
Table 15
Selection of line spacing
T1
T0
LINE SPACING
0
0
1
1
0
1
0
1
0H line
4H line
8H line
12H line
Table 16
Format of Space Code
Table 17
Description of Space Code bits; format is shown in Table 16
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
SYMBOL
DESCRIPTION
C5 to C0
If bits <9-4> hold 3FH, then this is the Space Code. A transparent pattern, equal to one character width,
will be displayed on the screen.
Bits <3-1> determine the background colour of the characters including the Space Code in Box
shadowing mode but following the Space Code in North-west shadowing mode. See Section 12.4 for
more details. Background colour selection is the same as Foreground colour selection; see Table 11.
Bit <0> is the End-of-Display bit and indicates the end of display of the current screen before exhaustion
of display RAM. The last character displayed on the TV screen is either the 64
th
RAM location or a Space
Code with the End-of-display attribute set to logic 1.
When T0 = 0; continue display of next character.
When T0 = 1; end of display.
T3 to T1
T0
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相關代理商/技術參數(shù) |
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| PCA84C822 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
| PCA84C822A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
| PCA84C822AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers for remote control transmitters |
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