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| 型号： | P83C570 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | Microcontrollers for NTSC TVs with On-Screen Display OSD and Closed Caption CC |
| 中文描述： | 微控制器用于NTSC电视的屏幕显示OSD和字幕消委会 |
| 文件页数： | 52/80页 |
| 文件大小： | 266K |
| 代理商： | P83C570 |
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1999 Jun 11
52
Philips Semiconductors
Product specification
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
P8xCx70 family
18.9
Register descriptions
All registers are read/writeable. When the registers are read a value will be returned that will correspond to the written
data. There is one exception; when the Status Register is read, status information will be returned.
18.9.1
D
ISPLAY
C
ONTROL
R
EGISTER
(DCR)
Table 75
Display Control Register (address 87F0H)
Table 76
Description of DCR bits
18.9.2
T
EXT
V
ERTICAL
P
OSITION
R
EGISTER
(TVPR)
Table 77
Text Vertical Position Register (address 87F1H)
Table 78
Description of TVPR bits
7
6
5
4
3
2
1
B0
SRC3
SRC2
SRC1
SRC0
FLF
MSH
MOD1
MOD0
BIT
SYMBOL
DESCRIPTION
7
6
5
4
3
SCR3
SCR2
SCR1
SCR0
FLF
Screen colour.
These 4 bits select the screen colour; one of 16 colours may be
selected; see Table 59.
Flash frequency.
The state of this bit determines the flash frequency of the screen.
A frequency of 1 or 2 Hz can be selected; see Table 60.
Meshing.
If MSH = 1, meshing is selected. See Section 18.2.12.
Display modes.
These 2 bits select one of the four display modes: Video mode, Full
Text mode, Mixed Screen mode and Mixed Video mode; see Table 56.
2
1
0
MSH
MOD1
MOD0
7
6
5
4
3
1
0
VPOL
HPOL
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
BIT
SYMBOL
DESCRIPTION
7
VPOL
Vertical sync polarity.
The state of this bit determines whether the vertical sync input is
inverted or not; see Table 74.
Horizontal sync polarity.
The state of this bit determines whether the horizontal sync
input is inverted or not; see Table 74.
Vertical offset.
These 6 bits select the number of lines that the text area is offset
vertically; see Table 72.
6
HPOL
5
4
3
2
1
0
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
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| P83C570AAR | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Microcontrollers for NTSC TVs with On-Screen Display OSD and Closed Caption CC |
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