AMD M56 Reference Manual page 233

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Linear interpolation of base and delta host read/write for LUT PWL mode
Field Name
DC_LUT_COLOR_10_BLUE
DC_LUT_COLOR_10_GREEN
DC_LUT_COLOR_10_RED
Host read/write LUT R,G,B value for LUT 256-entry table mode
Field Name
DC_LUT_READ_PIPE_SELECT
LUT pipe selection for host read.
Field Name
DC_LUT_WRITE_EN_MASK
Look-up table macro write enable mask for host write.
Field Name
DC_LUT_AUTOFILL (W)
DC_LUT_AUTOFILL_DONE (R)
LUT autofill control
© 2007 Advanced Micro Devices, Inc.
Proprietary
DC_LUT_30_COLOR - RW - 32 bits - DISPDEC:0x6494
Bits
9:0
19:10
29:20
DC_LUT_READ_PIPE_SELECT - RW - 32 bits - DISPDEC:0x6498
Bits
0
DC_LUT_WRITE_EN_MASK - RW - 32 bits - DISPDEC:0x649C
Bits
5:0
DC_LUT_AUTOFILL - RW - 32 bits - DISPDEC:0x64A0
Bits
0
1
Default
0x0
10-bit blue value for host read/write. The LUT index is increased by 1
when register DC_LUT_30_COLOR is accessed.
0x0
10-bit green value for host read/write.
0x0
10-bit red value for host read/write.
Default
0x0
LUT pipe selection for host read.
0=Host read select pipe 0
1=Host read select pipe 1
Default
0x3f
Look-up table macro write enable mask for host write.
For each bit
0 - host write disable
1 - host write enable
Bit[0] - For pipe 1, B macro
Bit[1] - For pipe 1, G macro
Bit[2] - For pipe 1, R macro
Bit[3] - For pipe 0, B macro
Bit[4] - For pipe 0, G macro
Bit[5] - For pipe 0, R macro
Default
0x0
Enable LUT autofill when 1 is written into this field
0=No effect
1=Start LUT autofill
0x0
LUT autofill is done
0=LUT autofill is not completed
1=LUT autofill is done
Display Controller Registers
Description
Description
Description
Description
M56 Register Reference Manual
2-227

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