at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 968
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at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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45.3.4
45.3.4.1
Table 45-6.
Table 45-7.
6249D–ATARM–20-Dec-07
Dec value
Dec Factor
OUTPUT
VGA
640*480
QVGA
320*240
CIF
352*288
QCIF
176*144
Preview Path
Scaling, Decimation (Subsampling)
Decimation Factor
Decimation and Scaler Offset Values
INPUT
0->15
X
F
F
F
F
This module resizes captured 8-bit color sensor images to fit the LCD display format. The resize
module performs only downscaling. The same ratio is applied for both horizontal and vertical
resize, then a fractional decimation algorithm is applied.
The decimation factor is a multiple of 1/16 and values 0 to 15 are forbidden.
Example:
Input 1280*1024 Output=640*480
Hratio = 1280/640 =2
Vratio = 1024/480 =2.1333
The decimation factor is 2 so 32/16.
16
1
352*288
NA
16
16
16
17
1.063
640*480
16
32
26
53
18
1.125
19
1.188
800*600
20
40
33
66
...
...
AT91SAM9263 Preliminary
1280*1024
113
32
64
56
124
7.750
125
7.813
1600*1200
133
40
80
66
126
7.875
2048*1536
102
170
127
7.938
51
85
968
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