參數(shù)資料
型號(hào)： P87C766
廠商： NXP Semiconductors N.V.
英文描述： Microcontrollers for PAL/SECAM TV with OSD and VST
中文描述： 微控制器對(duì)于PAL / SECAM電視的OSD和偉仕
文件頁(yè)數(shù)： 51/92頁(yè)
文件大?。?/td> 382K
代理商： P87C766
1999 Mar 10
51
Philips Semiconductors
Product specification
Microcontrollers for PAL/SECAM TV
with OSD and VST
P8xCx66 family
17.3.3
OSD V
ERTICAL
S
TART
R
EGISTER
(OSORGV)
Table 54
OSD Vertical Start Register (SFR address C2H)
Table 55
Description of OSORGV bits
7
6
5
4
3
2
1
0
VP5
VP4
VP3
VP2
VP1
VP0
BIT
SYMBOL
VP5
VP4
VP3
VP2
VP1
VP0
DESCRIPTION
7
6
5
4
3
2
1
0
These 2 bits are not used.
Vertical starting position selection.
These 6 bits select the vertical starting position of
the OSD. 1 of 63 starting positions may be selected. The reference point of the vertical
starting position is the leading edges of VSYNCP and HSYNCP. The vertical starting
position (VP) is calculated as follows:
Where (VP5
→
VP0) is the decimal value of the contents of OSORGV and
(VP5
→
VP0)
≥
1.
Fig.31 Active R, G, B and FB polarity control.
handbook, full pagewidth
FB (R, G, B) pin
Bp = 0 (active LOW)
FB (R, G, B) pin
Bp = 1 (active HIGH)
character
display
intervals
character
display
intervals
MGL283
VP
4
VP5
VP0
→
(
)
horizontal scan lines
×
×
=
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