Datasheet

 2017 Microchip Technology Inc. DS60001516A-page 697
SAM9G20
Example:
Input 1280*1024 Output = 640*480
Hratio = 1280/640 = 2
Vratio = 1024/480 = 2.1333
The decimation factor is 2 so 32/16.
Figure 38-5: Resize Examples
Table 38-6: Decimation Factor
Dec value 0->15 16 17 18 19 ... 124 125 126 127
Dec Factor X 1 1.063 1.125 1.188 ... 7.750 7.813 7.875 7.938
Table 38-7: Decimation and Scaler Offset Values
INPUT 352*288 640*480 800*600 1280*1024 1600*1200 2048*1536
OUTPUT
VGA
640*480
F NA1620324051
QVGA
320*240
F 1632406480102
CIF
352*288
F 162633566685
QCIF
176*144
F 16 53 66 113 133 170
1280
1024
480
640
32/16 decimation
1280
1024
288
352
56/16 decimation