Cirrus-logic AN269 Manual do Utilizador descarregar pdf (Página 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 0000000000000000 00 000

1 1 1 base+0x04 0001100001000010 00 001

1 1 1 base+0x08 0001100001000010 00 010

1 1 1 base+0x0C0101110001010011 00 011

1 1 1 base+0x10 0101110001010011 00 100

1 1 1 base+0x14 1110011110111101 00 101

1 1 1 base+0x18 1110011110111101 00 110

1 1 1 base+0x1C1111111111111111 00 111

1 1 1 base+0x20 0000000000000000 01 000

1 1 1 base+0x24 0100001000011000 01 001

1 1 1 base+0x28 0100001000011000 01 010

1 1 1 base+0x2C1010001110101100 01 011

1 1 1 base+0x30 1010001110101100 01 100

1 1 1 base+0x34 1011110111100111 01 101

1 1 1 base+0x38 1011110111100111 01 110

1 1 1 base+0x3C1111111111111111 01 111

1 1 1 base+0x40 0000000000000000 10 000

1 1 1 base+0x44 1000000100100100 10 001

1 1 1 base+0x48 1000000100100100 10 010

1 1 1 base+0x4C1100010100110101 10 011

1 1 1 base+0x50 1100010100110101 10 100

1 1 1 base+0x54 0111111011011011 10 101

1 1 1 base+0x58 0111111011011011 10 110

1 1 1 base+0x5C1111111111111111 10 111

1 1 1 base+0x60 0000000000000000 11 000

1 1 1 base+0x64 0010010010000001 11 001

1 1 1 base+0x68 0010010010000001 11 010

1 1 1 base+0x6C0011101011001010 11 011

1 1 1 base+0x70 0011101011001010 11 100

1 1 1 base+0x74 1101101101111110 11 101

1 1 1 base+0x78 1101101101111110 11 110

1 1 1 base+0x7C1111111111111111 11 111

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 64 65

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