AMD Geode LX 800@0.9W - Manual (Page 437)

AMD Geode™ LX Processors Data Book 437
Video Processor Register Descriptions 33234H
6.8.3.20 Cursor Color Mask (CCM)
6.8.3.21 Cursor Color 1 (CC1)
VP Memory Offset 0A8h
Type
R/W
Reset Value 00000000_00000000h
CCM 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 CUR_COLOR_MASK
CCM Bit Descriptions
Bit Name Description
63:24 RSVD (RO) Reserved (Read Only). Reads back as 0.
23:0 CUR_COLOR_
MASK Cursor Color Mask. This mask is a 24-bit value. Zeroes in the mask cause the corre-
sponding bits in the incoming graphics stream to be forced to match.
Example:
A mask of FFFFFFh causes all 24 bits to be compared (single color match).
A mask of 000000h causes none of the 24 bits to be compared (all colors match).
VP Memory Offset 0B0h
Type
R/W
Reset Value 00000000_00000000h
CC1 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 CUR_COLOR_REG1
CC1 Bit Descriptions
Bit Name Description
63:24 RSVD (RO) Reserved (Read Only). Reads back as 0.
23:0 CUR_COLOR_
REG1 Cursor Color Register 1. Specifies a 24-bit cursor color value. This is an RGB value (for
RGB blending).
This is one of two possible cursor color values. Bits[28:24] of the Cursor Color Key regis-
ter (VP Memory Offset 0A0h) determine a bit of the graphics data that if even, selects this
color to be used.