ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 436

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.8.3.24 Alpha Window 1 Y Position (A1Y)
VP Memory Offset 0C8h
Type
Reset Value
Note 1. V_TOTAL and V_SYNC_END are values programmed in the Display Controller module registers.
6.8.3.25 Alpha Window 1 Color (A1C)
VP Memory Offset 0D0h
Type
Reset Value
436
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
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
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
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
63:27
26:16
15:11
10:0
Bit
RSVD
The value of (V_TOTAL – V_SYNC_END) is sometimes referred to as “vertical back porch.”
RSVD
Name
RSVD (RO)
ALPHA1_Y_
END
RSVD (RO)
ALPHA1_Y_
START
R/W
00000000_00000000h
R/W
00000000_00000000h
33234C
Description
Reserved (Read Only). Reads back as 0.
Alpha Window 1 Y End. Indicates the vertical end position of alpha window 1. This
value is calculated according to the following formula:
Value = Desired screen position + (V_TOTAL – V_SYNC_END) + 2. (Note 1)
Reserved (Read Only). Reads back as 0.
Alpha Window 1 Y Start. Indicates the vertical start position of alpha window 1. This
value is calculated according to the following formula:
Value = Desired screen position + (V_TOTAL – V_SYNC_END) + 1. (Note 1)
ALPHA1_Y_END
A1Y Bit Descriptions
A1Y Register Map
A1C Register Map
RSVD
RSVD
ALPHA1_COLOR_REG
RSVD
AMD Geode™ LX Processors Data Book
Video Processor Register Descriptions
9
9
8
8
ALPHA1_Y_START
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0