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參數(shù)資料
| 型號： | SAA4998H |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Field and line rate converter with noise reduction and embedded memory |
| 中文描述： | 場和符合降噪和嵌入式存儲器率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/39頁 |
| 文件大小： | 175K |
| 代理商： | SAA4998H |
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2
1
P
P
F
r
S
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TotalPxDiv8
022
write; S
X X X X X X X X Total number of pixels per line divided-by-8 (
80 to 128
, corresponds to
640 to 1024 pixels). The horizontal blanking interval is calculated as
TotalPxDiv8
2
×
NrBlks and has to be in the range from 12 to 124
(corresponds to 96 to 992 pixels). Conclusion: TotalPxDiv8 has to be
set to 12 + 2
×
NrBlks < TotalPxDiv8 < 124 + 2
×
NrBlks and NrBlks
TotalPxDiv8
has to be set to
REaShift
WEbdREceShift
WEbdShift
REceShift
POR
023
024
write; S
write; S
X X X shift of REA signal in number of pixels (
0, +1, +2, +3,
4,
3,
2 or
1
)
X X X reserved
X X X
reserved
X power-on reset command, to be set high temporarily during start-up
(
normal or reset
); note 3
X X X X X X X X 8-bit scaling factor for EggSliceMix, EggSliceRgt and global activity
(the same factor for all registers).
025
write; S
ScalingFactor
0D6
write; S
FieldMemoryControl
PIPON
TWOFMON
PIPDataDelay
000
write; F
X Picture-In-Picture (PIP) field memory mode enable
has to be set to logic 0
input data will be delayed by one clock cycle with respect to WE2
(write enable)
no new data will be written into the field memory
0
X
PIPStillPicture
X
NAME
SNERT
ADDRESS
(HEX)
READ/
WRITE
(1)
7
6
5
4
3
2
1
0
DESCRIPTION
(2)
124
–
2
NrBlks
TotalPxDiv8
12
–
2
<
<
output value (n+1)
128
ScalingFactor
output value (n)
×
=
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