ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 444

• 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

6.8.3.35 Video Request (VRR)
VP Memory Offset 120h
Type
Reset Value
6.8.3.36 Alpha Watch (AWT)
VP Memory Offset 128h
Type
Reset Value
Alpha values may be automatically incremented/decremented for successive frames. This register can be used to read
alpha values that are being used in the current frame.
444
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
63:28
27:16
15:11
15:8
10:0
Bit
7:0
Bit
16
RSVD
Name
ALPHA3_WIN_
EN
ALPHA3_INC
ALPHA3_MUL
Name
RSVD (RO)
XRQ
RSVD (RO)
YRQ
RSVD
R/W
00000000_001B0017h
RO
00000000_00000000h
33234C
Description
Alpha Window 3 Enable. Enable bit for alpha window 3.
0: Disable alpha window 3.
1: Enable alpha window 3.
Alpha Window 3 Increment. Specifies the alpha value increment/decrement. This is a
signed 8-bit value that is added to the alpha value for each frame. The MSB (bit 15) indi-
cates the sign (i.e., increment or decrement). When this value reaches either the maxi-
mum or the minimum alpha value (255 or 0) it keeps that value (i.e., it is not incremented/
decremented) until it is reloaded via LOAD_ALPHA (bit 17).
Alpha Window 3 Value. Specifies the alpha value to be used for this window.
Description
Reserved (Read Only). Reads back as 0.
Video X Request. Indicates the horizontal (pixel) location to start requesting video data
from.
Reserved (Read Only). Reads back as 0.
Video Y Request. Indicates the line number to start requesting video data from.
XRQ
A3T Bit Descriptions (Continued)
AW3
VRR Bit Descriptions
AWT Register Map
VRR Register Map
RSVD
RSVD
RSVD
AW2
AMD Geode™ LX Processors Data Book
Video Processor Register Descriptions
9
9
8
8
7
7
6
6
YRQ
5
5
4
4
AW1
3
3
2
2
1
1
0
0