SAA4998H Datasheet, PDF (27/39 Pages) NXP Semiconductors – Field and line rate converter with noise reduction and embedded memory

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NAME
SNERT
ADDRESS
(HEX)
READ/
WRITE⁽¹⁾
7
6
5
4
3
2
1
0
DESCRIPTION⁽²⁾
LeastErrSum
0A9
read; F X X X X X X X X least error sum (summation over a field period of the smallest match
error that the estimator has found for each block: indicates reliability of
the estimation process)
YvecRangeErrCntmsb 0AA
read; F
X X X X X X X X Y vector range error count (number of vectors that have a vertical
component that is out of range for upconversion at the chosen
temporal position) (15 to 8)
YvecRangeErrCntlsb 0AB
RefLineCountPrev
0AC
RefLineCountNew
0AD
read; F
read; F
write; F
X X X X X X X X Y vector range error count (7 to 0)
X X X X X X X X read out of [number of input (run-) lines − 40] used in previous field
X X X X X X X X Write of [number of input (run-) lines − 40] to be used in new field
(actual maximum number of input lines in normal operation: 292;
register value 252). Nominally this is to be set as an exact copy of the
value read from RefLineCountPrev before a new field starts. In case
the effective number of input (run-) lines has increased,
RefLineCountNew should, for one field, be set to 255. This will occur
e.g. with decreasing vertical zoom magnification or changing from
525 lines video standard to 625 lines standard. If this is not done, a
deadlock will occur with too few lines processed correctly by the
motion estimator.
PanZoomVec0-X
0B0
read; F X X X X X X X X pan-zoom vector 0 (8-bit X value)
PanZoomVec0-Y
0B1
read
FalconIdent
S
0
SAA4998H identification: fixed bit, reading this bit as zero means
SAA4998H is present
PanZoomVec0-Y
F
X X X X X X X pan-zoom vector 0 (7-bit Y value)
PanZoomVec1-X
0B2
read; F X X X X X X X X pan-zoom vector 1 (8-bit X value)
PanZoomVec1-Y
0B3
read
StatusJump0
S
X
1: both field memories are in use by the motion estimation and motion
compensation function; see Fig.1
0: field memory 2 is in use by the motion estimation and motion
compensation function; field memory 3 for PIP application; see Fig.1
PanZoomVec1-Y
F
X X X X X X X pan-zoom vector 1 (7-bit Y value)
PanZoomVec2-X
0B4
read; F X X X X X X X X pan-zoom vector 2 (8-bit X value)
PanZoomVec2-Y
0B5
read
StatusJump1
S
1
logic 1
PanZoomVec2-Y
F
X X X X X X X pan-zoom vector 2 (7-bit Y value)