AMD M56 Reference Manual page 347

Field Name
LVTMA_COLOR_FORMAT
Field Name
LVTMA_FORCE_DATA_EN
LVTMA_FORCE_DATA_SEL
LVTMA_FORCE_DATA_ON_BLANKb_ONLY
Data Force Control
Field Name
LVTMA_FORCE_DATA
Field Name
LVTMA_TRUNCATE_EN
LVTMA_TRUNCATE_DEPTH
LVTMA_SPATIAL_DITHER_EN
LVTMA_SPATIAL_DITHER_DEPTH
LVTMA_TEMPORAL_DITHER_EN
LVTMA_TEMPORAL_DITHER_DEPTH
© 2007 Advanced Micro Devices, Inc.
Proprietary
LVTMA_COLOR_FORMAT - RW - 32 bits - DISPDEC:0x7A88
Bits
1:0
LVTMA_FORCE_OUTPUT_CNTL - RW - 32 bits - DISPDEC:0x7A8C
Bits
0
10:8
16
LVTMA_FORCE_DATA - RW - 32 bits - DISPDEC:0x7A90
Bits
7:0
LVTMA_BIT_DEPTH_CONTROL - RW - 32 bits - DISPDEC:0x7A94
Bits
0
4
8
12
16
20
Default
0x0
0: Normal (24bpp) or Twin Single 30bpp (8 MSBs of each compo-
nent)
1: Twin-Single 30bpp (2 LSBs of each component)
2: Dual-Link 30bpp (8 MSBs on one link, 2 LSBs on the other)
3: Reserved
Default
0x0 Enable force option on LVTMA
0=Disable
1=Enable
0x0 Select LVTMA channels that have data forced0=Don't Force,
1=Force
Bit 0: Blue channel
Bit 1: Green channel
Bit 2: Red channel
0x0 Force Data during active region
0=Disable
1=Enable
Default
0x0 Data to be forced on R, G & B channels
Default
0x0 Enable bit reduction by truncation
0=Disable
1=Enable
0x0 Controls truncation depth
0=18bpp
1=24bpp
0x0 Enable bit reduction by spatial (random) dither
0=Disable
1=Enable
0x0 Controls reduction depth
0=18bpp
1=24bpp
0x0 Enable bit reduction by temporal dither (frame mod.)
0=Disable
1=Enable
0x0 Controls dither Depth
0=18bpp
1=24bpp
LVDS Registers
Description
Description
Description
Description
M56 Register Reference Manual
2-341