Cirrus Logic AN269 - Manual (Page 45)

AN269
AN269REV1 45
Here is the Red grayscale LUT, in the order as would be seen in the EP93xx User’s Guide table “Grayscale
Look-Up Table (GrySclLUT)”. Note that the upper-order bits D[18:16] are set in all registers, but only the
settings in base+0x0 through base+0x1C are used by the grayscale generator to determine if 3- or 4-count
entries are used.
Frame
Ctr
Vert
Ctr
Horz
Ctr
VCNT
(Lines)
11 11 11 11 10 10 10 10 01 01 01 01 00 00 00 00
GrySclLUT
Address *4
HCNT
(Pixels)
11 10 01 00 11 10 01 00 11 10 01 00 11 10 01 00 Frame
Pixel
Value
1 1 1 base+0x00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 000
1 1 1 base+0x04 0 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 00 001
1 1 1 base+0x08 0 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 00 010
1 1 1 base+0x0C 0 1 0 1 1 1 0 0 0 1 0 1 0 0 1 1 00 011
1 1 1 base+0x10 0 1 0 1 1 1 0 0 0 1 0 1 0 0 1 1 00 100
1 1 1 base+0x14 1 1 1 0 0 1 1 1 1 0 1 1 1 1 0 1 00 101
1 1 1 base+0x18 1 1 1 0 0 1 1 1 1 0 1 1 1 1 0 1 00 110
1 1 1 base+0x1C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 00 111
1 1 1 base+0x20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 01 000
1 1 1 base+0x24 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 01 001
1 1 1 base+0x28 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 0 01 010
1 1 1 base+0x2C 1 0 1 0 0 0 1 1 1 0 1 0 1 1 0 0 01 011
1 1 1 base+0x30 1 0 1 0 0 0 1 1 1 0 1 0 1 1 0 0 01 100
1 1 1 base+0x34 1 0 1 1 1 1 0 1 1 1 1 0 0 1 1 1 01 101
1 1 1 base+0x38 1 0 1 1 1 1 0 1 1 1 1 0 0 1 1 1 01 110
1 1 1 base+0x3C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 01 111
1 1 1 base+0x40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 000
1 1 1 base+0x44 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 10 001
1 1 1 base+0x48 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 10 010
1 1 1 base+0x4C 1 1 0 0 0 1 0 1 0 0 1 1 0 1 0 1 10 011
1 1 1 base+0x50 1 1 0 0 0 1 0 1 0 0 1 1 0 1 0 1 10 100
1 1 1 base+0x54 0 1 1 1 1 1 1 0 1 1 0 1 1 0 1 1 10 101
1 1 1 base+0x58 0 1 1 1 1 1 1 0 1 1 0 1 1 0 1 1 10 110
1 1 1 base+0x5C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10 111
1 1 1 base+0x60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 000
1 1 1 base+0x64 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 1 11 001
1 1 1 base+0x68 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 1 11 010
1 1 1 base+0x6C 0 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 11 011
1 1 1 base+0x70 0 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 11 100
1 1 1 base+0x74 1 1 0 1 1 0 1 1 0 1 1 1 1 1 1 0 11 101
1 1 1 base+0x78 1 1 0 1 1 0 1 1 0 1 1 1 1 1 1 0 11 110
1 1 1 base+0x7C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 111