Справочник Пользователя для AMD LX 900@1.5W
438
AMD Geode™ LX Processors Data Book
Video Processor Register Descriptions
33234H
6.8.3.22 Cursor Color 2 (CC2)
6.8.3.23 Alpha Window 1 X Position (A1X)
VP Memory Offset 0B8h
Type
Type
R/W
Reset Value
00000000_00000000h
CC2 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_REG2
CC2 Bit Descriptions
Bit
Name
Description
63:24
RSVD (RO)
Reserved (Read Only). Reads back as 0.
23:0
CUR_COLOR_
REG2
REG2
Cursor Color Register 2. Specifies a 24-bit cursor color value. This is an RGB value (for
RGB blending).
RGB blending).
This is one of two possible cursor color values.COLOR_REG_OFFSET (VP Memory Off-
set 0A0h[28:24] determine a bit of the graphics data that if odd, selects this color to be
used.
set 0A0h[28:24] determine a bit of the graphics data that if odd, selects this color to be
used.
VP Memory Offset 0C0h
Type
Type
R/W
Reset Value
00000000_00000000h
A1X 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
ALPHA1_X_END
RSVD
ALPHA1_X_START
A1X Bit Descriptions
Bit
Name
Description
63:28
RSVD (RO)
Reserved (Read Only). Reads back as 0.
27:16
ALPHA1_X_
END
END
Alpha Window 1 X End. Indicates the horizontal end position of alpha window 1. This
value is calculated according to the following formula:
value is calculated according to the following formula:
Value = Desired screen position + (H_TOTAL – H_SYNC_END) – 1. (Note 1)
15:12
RSVD (RO)
Reserved (Read Only). Reads back as 0.
11:0
ALPHA1_X_
START
START
Alpha Window 1 X Start. Indicates the horizontal start position of alpha window 1. This
value is calculated according to the following formula:
value is calculated according to the following formula:
Value = Desired screen position + (H_TOTAL – H_SYNC_END) – 2. (Note 1)
Note 1. H_TOTAL and H_SYNC_END are values programmed in the Display Controller module registers.
The value of (H_TOTAL – H_SYNC_END) is sometimes referred to as “horizontal back porch.”