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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)： | 23/39頁 |
| 文件大小： | 175K |
| 代理商： | SAA4998H |
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Motest3
MotShiFac
02E
write; F
X X X X X X Motion estimator shift factor, being the temporal position used in the
estimator at which the matching is done; value
32
for matching at
previous field position down
to 0
for matching at current field position.
Keeping MotShiFac equal to UpShiFac in the next upconverted output
field estimates for minimum matching errors (minimum Halo’s).
MotShiFac at value
16
gives the largest natural vector range (twice as
large as with value 0 or 32). Going above the range with
MotShiFac
≠
16 is dealt with in SAA4998H by shifting towards 16, but
for the horizontal and vertical component separately (consequence is
that vector candidates tend to rotate towards the diagonal directions).
Motest4
PenRng
02F
write; S
X Penalty for vectors estimated on the first row and the first column (if
left estimator is used) or the right column (if right estimator is used),
whenever the spatial prediction candidate is selected (
64 or 511
).
For noisy pictures, this register could be set to logic 1 to improve
border processing in the estimator.
choice of candidate set (
left or right
) for which data (Candidate1 to
Candidate8) is written in this field (becomes active in next field);
note 3
threshold on block match error for considering a block to be bad
(
16, 32, 64, 128, 256, 512, 1024 or 2032
)
number of horizontally adjacent blocks that have to be all bad before
considering an occurrence of a burst error (
1, 2, 4 or 8
) (counting of
burst errors is read out with BlockErrCnt, address 0A8H)
to be kept to logic 1 for normal operation
CndSet
X
ErrThr
X X X
ErrHbl
X X
TstMod
Motest5
ActOption
X
0CC
write; S
X X selection of the vector component to take in the activity count
(
x
+
y
,
x
,
y
or
)
write zeros in the temporal prediction memory
(
no writing or writing zeros
)
X X X X X X X X blocks having an activity value below or equal to this threshold are
counted as having LOW activity
X X X X X X X X blocks having an activity value above this threshold are counted as
having HIGH activity
ClearTPM
X
LoActThr
0CD
write; S
HiActThr
0CE
write; S
NAME
SNERT
ADDRESS
(HEX)
READ/
WRITE
(1)
7
6
5
4
3
2
1
0
DESCRIPTION
(2)
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