Atmel Evaluation Kit AT91SAM9X35-EK AT91SAM9X35-EK Data Sheet
Product codes
AT91SAM9X35-EK
1096
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
46.6.5.3 4:2:2 Semiplanar Mode Frame Buffer Memory Mapping
46.6.5.4 4:2:2 Planar Mode Frame Buffer Memory Mapping
46.6.5.5 4:2:0 Planar Mode Frame Buffer Memory Mapping
In Planar Mode, the three video components Y, Cr and Cb are split into 3 memory areas and stored in a raster-scan
order. These three memory planes are contiguous and always aligned on a 32-bit boundary.
order. These three memory planes are contiguous and always aligned on a 32-bit boundary.
Table 46-36. 16 bpp memory mapping, little endian organization, Mode 2
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
Cb0[7:0]
Y1[7:0]
Cr0[7:0]
Y0[7:0]
Table 46-37. 16 bpp memory mapping, little endian organization, Mode 3
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
Y1[7:0]
Cb0[7:0]
Y0[7:0]
Cr0[7:0]
Table 46-38. 4:2:2 Semiplanar Luminance memory mapping with little endian organization for byte 0x0, 0x1, 0x2, 0x3
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
Y3[7:0]
Y2[7:0]
Y1[7:0]
Y0[7:0]
Table 46-39. 4:2:2 Semiplanar Chrominance memory mapping with little endian organization for byte 0x0, 0x1, 0x2, 0x3
Mem addr 0x3
0x2
0x1
0x0
31
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
Cb2[7:0]
Cr2[7:0]
Cb0[7:0]
Cr0[7:0]
Table 46-40. 4:2:2 planar mode Luminance memory mapping with little endian organization for byte 0x0, 0x1, 0x2, 0x3
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
Y3[7:0]
Y2[7:0]
Y1[7:0]
Y0[7:0]
Table 46-41. 4:2:2 planar mode Chrominance memory mapping with little endian organization for byte 0x0, 0x1, 0x2, 0x3
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 16 bpp
C3[7:0]
C2[7:0]
C1[7:0]
C0[7:0]
Table 46-42. 4:2:0 planar mode Luminance memory mapping with little endian organization for byte 0x0, 0x1, 0x2, 0x3
Mem addr 0x3
0x2
0x1
0x0
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 12 bpp
Y3[7:0]
Y2[7:0]
Y1[7:0]
Y0[7:0]
Table 46-43. 4:2:0 planar mode Luminance memory mapping with little endian organization for byte 0x4, 0x5, 0x6, 0x7
Mem addr 0x7
0x6
0x5
0x4
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Pixel 12 bpp
Y7[7:0]
Y6[7:0]
Y5[7:0]
Y4[7:0]