PNX1311EH/G NXP Semiconductors, PNX1311EH/G Datasheet - Page 229
PNX1311EH/G
Manufacturer Part Number
PNX1311EH/G
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1311EHG.pdf
(548 pages)
Specifications of PNX1311EH/G
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Philips Semiconductors
A simple linear model of computation time has been fit-
ted to the tabular data and to corresponding measure-
ments with half the number of pixels per line.
It was assumed that
processing time = (time per line start)* (number of lines)
+(time per pixel) * (number of pixels)
Table
per line start and the time per pixel in this equation for the
three memory bandwidth cases.
The maximum deviation between measured time and fit-
ted model is on the order of 10% in the range W = 180 ...
1024, H = 240 ...768. The deviation is much less in most
cases. The values were found by least squares fit to the
measured data.
In some cases the cumulative time for line starts contrib-
uted so little to the total computation time that the value
Table 14-5. Measured processing time in ms - no other load to SDRAM
Table 14-6. Measured processing time in ms - SDRAM loaded 95%, priority delay = 1
horizontal filter, 1 component
horizontal filter, 3 components YUV 4:2:2
vertical filter, 1 component
vertical filter, 3 components YUV 4:2:2
yuv to rgb8a, pci output
yuv to rgb15a, pci output
yuv to rgb24, pci output
yuv to rgb24a, pci output
yuv to rgb8a, sdram output
yuv to rgb15a, sdram output
yuv to rgb24, sdram output
yuv to rgb24a, sdram output
yuv to rgb8a, bitmask, pci output
yuv to rgb8a, RGB 15a overlay, pci output
yuv to rgb8a, RGB 24a overlay, pci output
yuv to rgb8a, yuv 422a overlay, pci output
yuv to rgb8a, 422 sequencing, pci output
horizontal filter, 1 component
horizontal filter, 3 components YUV 4:2:2
vertical filter, 1 component
vertical filter, 3 components YUV 4:2:2
yuv to rgb8a, pci output
yuv to rgb15a, pci output
yuv to rgb24, pci output
14-8,
Table 14-9
W in pixels
W in pixels
H in pixels
H in pixels
and
Table 14-10
give the time
2.01
4.11
2.60
5.20
3.51
3.52
3.88
1.22
2.68
2.57
5.15
3.36
3.39
3.72
4.34
3.39
3.46
3.62
3.90
3.37
3.67
4.23
3.67
2.52
360
240
360
240
6.37
13.69
8.79
17.59
11.08
11.11
12.51
3.82
8.18
8.73
17.47
10.74
10.79
12.24
14.52
10.78
11.04
11.69
12.69
11.42
11.72
13.57
11.72
7.77
640
480
640
480
per line start could only be determined relatively inaccu-
rately. In other words the pixel time portion dominated
the equation so much that the line time portion was neg-
ligible, given the inaccuracies of the model.
Therefore the simple model is only thought to allow inter-
polation for other picture sizes within the range W = 180
...1024, H = 240 ... 768. Extrapolation to picture sizes
much outside this range should not be attempted using
this data.
In some cases the real ICP performance may be much
better than that predicted by the model, due to irregular
behavior of the ICP.
For horizontal and vertical up/down-scaling operations
use the larger W or H value occurring at input/output with
the H/V filter times table or model.
This will lead to overestimation of processing time by up
to 20%.
PRELIMINARY SPECIFICATION
7.60
15.62
10.34
12.17
12.22
13.79
20.66
4.43
9.29
10.24
20.48
11.93
11.96
13.52
16.04
11.95
12.26
13.06
14.11
12.49
12.92
15.32
12.92
8.57
720
480
720
480
16.50
12.16
24.96
32.96
19.46
19.51
22.08
7.08
14.86
16.36
32.72
19.08
19.12
21.62
25.02
19.09
19.60
20.88
22.57
19.97
20.67
24.51
20.67
13.70
720
768
720
768
8.02
16.56
11.25
23.15
13.51
13.47
15.21
4.78
10.08
11.19
22.95
13.04
13.10
14.85
17.58
13.13
13.46
14.43
15.65
13.61
14.23
16.93
14.23
9.32
800
480
800
480
Image Coprocessor
10.02
20.68
14.05
28.89
16.88
16.82
18.99
5.98
12.60
13.97
28.65
16.30
16.41
18.59
21.63
16.40
16.82
18.03
19.56
17.01
17.79
21.15
17.79
11.65
800
600
800
600
16.02
32.65
22.43
44.87
26.56
26.65
30.26
9.27
19.35
22.30
44.60
26.02
26.15
29.98
35.01
26.08
26.87
28.71
31.07
27.83
28.23
33.15
28.23
18.40
1024
1024
768
768
14-19
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