Datasheet

960
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
44.6.3.2 Color Attributes
 CLUTMODE field: selects the color lookup table mode
 RGBMODE field: selects the RGB mode.
44.6.3.3 Window Attributes Software Operation
1. When required, write the overlay attributes configuration registers.
2. Set UPDATEEN field of the CHXCHER register.
3. Poll UPDATESR field in the CHXCHSR, the update applies when that field is reset.
44.6.4 RGB Frame Buffer Memory Bitmap
44.6.4.1 1 bpp Through Color Lookup Table
44.6.4.2 2 bpp Through Color Lookup Table
44.6.4.3 4 bpp Through Color Lookup Table
44.6.4.4 8 bpp Through Color Lookup Table
44.6.4.5 12 bpp Memory Mapping, RGB 4:4:4
Table 44-7. 1 bpp memory mapping, little endian organization
Mem addr 0x3 0x2 0x1 0x0
Bit 313029282726252423222120191817161514131211109876543210
Pixel 1 bpp
p3
1
p3
0
p2
9
p2
8
p2
7
p2
6
p2
5
p2
4
p2
3
p2
2
p2
1
p2
0
p1
9
p1
8
p1
7
p1
6
p1
5
p1
4
p1
3
p1
2
p11
p1
0
p9 p8 p7 p6 p5 p4 p3 p2 p1 p0
Table 44-8. 2 bpp memory mapping, little endian organization
Mem addr 0x3 0x2 0x1 0x0
Bit 313029282726252423222120191817161514131211109876543210
Pixel 2 bpp p15 p14 p13 p12 p11 p10 p9 p8 p7 p6 p5 p4 p3 p2 p1 p0
Table 44-9. 4 bpp memory mapping, little endian organization
Mem addr 0x3 0x2 0x1 0x0
Bit 313029282726252423222120191817161514131211109876543210
Pixel 4 bpp p7 p6 p5 p4 p3 p2 p1 p0
Table 44-10. 8 bpp memory mapping, little endian organization
Mem addr 0x3 0x2 0x1 0x0
Bit 313029282726252423222120191817161514131211109876543210
Pixel 8 bpp p3 p2 p1 p0
Table 44-11. 12 bpp memory mapping, little endian organization
Mem addr 0x3 0x2 0x1 0x0
Bit 313029282726252423222120191817161514131211109 8 7 6 5 4 3 2 1 0
Pixel 12 bpp – R1[3:0] G1[3:0] B1[3:0] – R0[3:0] G0[3:0] B0[3:0]