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參數(shù)資料
| 型號： | 935187130557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 畫面疊加 |
| 英文描述： | PICTURE-IN-PICTURE IC, PQFP100 |
| 封裝： | PLASTIC, SOT-317-2, QFP-100 |
| 文件頁數(shù)： | 19/43頁 |
| 文件大小： | 250K |
| 代理商： | 935187130557 |
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February 1995
26
Philips Semiconductors
Preliminary specication
Picture-in-Picture (PIP) controller for NTSC
SAB9075H
Table 17 Register A; decoder format register
Notes
1. MCOLPOL and SCOPOL invert the UV video data.
2. MVSPOL and SVSPOL determine the active edge of the Vsync. If VSPOL is logic 0, the positive edge of the Vsync will
be taken; if VSPOL is logic 1, the negative edge of the Vsync will be taken.
3. MHSYNC and SHSYNC determine whether the Hsync signal or the burstkey is used as internal horizontal
synchronization.
BIT
MODE
RESULT
7
MCOLPOL(1)
main-UV polarity; logic 0 = original; logic 1 = inverted
6
MVSPOL(2)
main-vertical sync polarity; logic 0 = positive pulse; logic 1 = negative pulse
5
MHSYNC(3)
main-horizontal sync selection; logic 0 = burst edge; logic 1 = H
sync
4
MFPOL
main-eld polarity; inverts eld identication window
3
SCOLPOL(1)
sub-UV polarity; logic 0 = original; logic 1 = inverted
2
SVSPOL(2)
sub-vertical sync polarity; logic 0 = positive pulse; logic 1 = negative pulse
1
SHSYNC(3)
sub-horizontal sync selection; logic 0 = burst edge; logic 1 = H
sync
0
SFPOL
sub-eld polarity, inverts eld identication window
The exact timing of the Vsync in relation to the Hsync
reference pulse is depicted in Fig.18. A field identification
window determines whether a Vsync is being handled as a
1st field or a 2nd field. This field identification window can
be inverted by the FPOL bit. If FPOL is logic 0 and an
active edge of the Vsync occurs when the F-ID signal is
logic 0, it will be regarded as the 1st field. If FPOL is logic 0
and an active edge of the Vsync occurs when the F-ID
signal is logic 1, it will be regarded as the 2nd field. If FPOL
is logic 1 the 1st and 2nd field IDs are changed over.
Fig.18 Vsync timing and field identification.
handbook, full pagewidth
MBE100
432
389
43
1st field
2nd field
field ID (internal)
(number of pixels)
H
(external)
sync
V
(external)
sync
V
(external)
sync
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