38.6.6.5 4:2:0 Planar Mode Frame Buffer Memory Mapping

In Planar mode, the three video components Y, Cr and Cb are split into three memory areas and stored in a raster-scan order. These three memory planes are always aligned on a 32-bit boundary.

Table 38-40. 4:2:0 Planar Mode Luma Memory Mapping, 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 38-41. 4:2:0 Planar Mode Luma Memory Mapping, 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]

Table 38-42. 4:2:0 Planar Mode Chroma Memory Mapping, 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	C3[7:0] C3=Cr/Cb								C2[7:0] C2=Cr/Cb								C1[7:0] C1=Cr/Cb								C0[7:0] C0=Cr/Cb

Table 38-43. 4:2:0 Planar Mode Chroma Memory Mapping, 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	C7[7:0] C7=Cr/Cb								C6:[7:0] C6=Cr/Cb								C5[7:0] C5=Cr/Cb								C4[7:0] C4=Cr/Cb