10 saturation scale (slr), Saturation scale (slr) – AMD Geode LX [email protected] User Manual
Page 429
AMD Geode™ 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
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RSVD
EN
SP
ARE
SAT_SCALE
SLR Bit Descriptions
Bit
Name
Description
63:10
RSVD (RO)
Reserved (Read Only). Reads back as 0.
9
EN
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.
8
SPARE
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.