AMD Geodeā„¢ LX Processors Data Book 429
Video Processor Register Descriptions 33234H
6.8.3.10 Saturation Scale (SLR)
VP Memory Offset 048h
Type R/W
Reset Value 00000000_00000000h
SLR Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
RSVD
313029282726252423222120191817161514131211109876543210
RSVD
EN
SPARE
SAT_SCALE
SLR Bit Descriptions
Bit Name Description
63:10 RSVD (RO) Reserved (Read Only). Reads back as 0.
9EN Enable. Enable Saturation Scaling. If this bit is cleared, saturation conversion does not
occur. If it is set, saturation conversion and scaling occurs prior to YUV conversion of the
graphics.
8SPARE SPARE. Bit is R/W but has no function.
7:0 SAT_SCALE Saturation Scale. Saturation scale value set by software to scale the saturation value
derived by the RGB to HSV conversion of the graphics. After scaling the S value, the
result is then converted to YUV format prior to blending with the video. This 8-bit value
represents 256 equal steps between 0 and 1.