參數(shù)資料
型號(hào)： P87C770AAR
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： Microcontrollers for NTSC TVs with On-Screen Display OSD and Closed Caption CC
中文描述： 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52
文件頁(yè)數(shù)： 55/80頁(yè)
文件大小： 266K
代理商： P87C770AAR
1999 Jun 11
55
Philips Semiconductors
Product specification
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
P8xCx70 family
18.9.7
S
CROLL
R
OWS
R
ANGE
R
EGISTER
(SRRR)
Table 87
Scroll Rows Range Register (address 87F6H)
Table 88
Description of SRRR bits
18.9.8
RGB B
RIGHTNESS
R
EGISTER
(BR)
Table 89
RGB Brightness Register (address 87F7H)
Table 90
Description of BR bits
7
6
5
4
3
2
1
0
SPS3
SPS2
SPS1
SPS0
STS3
STS2
STS1
STS0
BIT
SYMBOL
DESCRIPTION
7
6
5
4
3
2
1
0
SPS3
SPS2
SPS1
SPS0
STS3
STS2
STS1
STS0
Stop scroll row.
These 4 bits select the row number at which scrolling will stop. One of
16 rows can be specified; see Table 66.
Start scroll row.
These 4 bits select the row number at which scrolling will begin.
One of 16 rows can be specified; see Table 65.
7
6
5
4
3
2
1
0
FBPOL
BRI3
BRI2
BRI1
BRI0
BIT
SYMBOL
DESCRIPTION
7
FBPOL
Fast Blanking polarity.
The state of this bit determines whether the polarity of the Fast
Blanking signal (FBL) is inverted or not; see Table 51.
These 3 bits are reserved.
6
5
4
3
2
1
0
BRI3
BRI2
BRI1
BRI0
Brightness value.
These 4 bits select the brightness value of the RGB output voltages.
One of 16 brightness values can be selected; see Table 52.
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