SAF7118EH/V1/G-T NXP Semiconductors, SAF7118EH/V1/G-T Datasheet - Page 45
SAF7118EH/V1/G-T
Manufacturer Part Number
SAF7118EH/V1/G-T
Description
Video ICs 9BIT VIDEO DECODER
Manufacturer
NXP Semiconductors
Datasheet
1.SAF7118EHV1G-T.pdf
(175 pages)
Specifications of SAF7118EH/V1/G-T
Screening Level
Industrial
Package Type
HBGA
Pin Count
156
Lead Free Status / RoHS Status
Compliant
Other names
SAF7118EH/V1/G,518
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NXP Semiconductors
SAF7118_4
Product data sheet
8.4.1 Acquisition control and task handling (subaddresses 80h, 90h, 91h, 94h to
The video scaler receives its input signal from the video decoder or from the expansion
port (X port). It gets 16-bit Y-C
from the decoder. Discontinuous data stream can be accepted from the expansion port
(X port), normally 8-bit wide ITU 656 such as Y-C
qualifier on XDQ.
The input data stream is sorted into two data paths, one for luminance (or raw samples)
and one for time-multiplexed chrominance C
format is converted to 4 : 2 : 2 for the horizontal prescaling and vertical filter scaling
operation.
The scaler operation is defined by two programming pages A and B, representing two
different tasks, that can be applied field alternating or to define two regions in a field (e.g.
with different scaling range, factors and signal source during odd and even fields).
Each programming page contains control:
Raw VBI data is handled as a specific input format and needs its own programming page
(equals own task).
In VBI pass through operation the processing of prescaler and vertical scaling has to be
set to no-processing, however, the horizontal fine scaling VPD can be activated.
Upscaling (oversampling, zooming), free of frequency folding, up to a factor of 3.5 can be
achieved, as required by some software data slicing algorithms.
These raw samples are transported through the image port as valid data and can be
output as Y only format. The lines are framed by SAV and EAV codes.
9Fh and C4h to CFh)
The acquisition control receives horizontal and vertical synchronization signals from the
decoder section or from the X port. The acquisition window is generated via pixel and line
counters at the appropriate places in the data path. From X port only qualified pixels and
lines (lines with qualified pixel) are counted.
The acquisition window parameters are as follows:
•
•
•
•
•
•
•
For signal source selection and formats
For task handling and trigger conditions
For input and output acquisition window definition
For H-prescaler, V-scaler and H-phase scaling
Signal source selection regarding input video stream and formats from the decoder, or
from X port (programming bits SCSRC[1:0] 91h[5:4] and FSC[2:0] 91h[2:0])
Remark: The input of raw VBI data from the internal decoder should be controlled via
the decoder output formatter and the LCR registers; see
Vertical offset defined in lines of the video source, parameter YO[11:0] 99h[3:0]
98h[7:0]
Vertical length defined in lines of the video source, parameter YS[11:0] 9Bh[3:0]
9Ah[7:0]
Rev. 04 — 4 July 2008
B
-C
Multistandard video decoder with adaptive comb filter
R
4 : 2 : 2 input data at a continuous rate of 13.5 MHz
B
and C
B
-C
R
R
samples. An Y-C
data, accompanied by a pixel
Section 8.3
SAF7118
B
© NXP B.V. 2008. All rights reserved.
-C
R
4 : 1 : 1 input
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