ALXD800EEXJ2VC C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VC C3 Datasheet - Page 426

• Manufacturer Part Number: ALXD800EEXJ2VC C3
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VC C3

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

6.8.3.6
VP Memory Offset 028h
Type
Reset Value
426
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
29:16
63:24
10:0
Bit
Bit
30
15
14
13
12
11
Video Color Key Register (VCK)
GB (RO)
RSVD
SP
DHD
COED
LPS
SP
VSL
Name
RSVD (RO)
RSVD
Name
R/W
00000000_00000000h
33234H
Description
GLIU Behind (Read Only). This bit set indicates the GLIU line buffer fill is falling behind
the Dot display. This bit clears on read.
This bit is typically set if during vertical downscale, the 2nd line buffer fill has not com-
pleted before the Dot display has started. This does not necessarily indicate an error,
recovery is possible.
Reserved.
Spare. Bit is R/W but has no function.
Double Horizontal Downscale. Selects which method data gets written into line buffers.
0: Write data from video interface directly.
1: Write data from video interface averaged each 2 pixels.
This bit should only be set when horizontal downscale greater than 4:1 is desired.
Coefficient Mode. Selects between 128 and 256 coefficient usage.
0: Use common 256 vert/horz coefficient table.
1: Use separate 128 vert/horz coefficient tables.
When using separate tables, the vertical coefficient should be placed in the lower half of
the coefficient RAM (0-127 = vertical 128-255 = horizontal).
Last Pixel Select. Selects method to choose last pixel for the scaler to use.
0: Use video source line size.
1: Use video window size.
The preferred setting is 0. This will avoid unnecessary horizontal mirroring.
Spare. Bit is R/W but has no function.
Video Source Lines. Represents the total number of video source lines. For example, a
720x480 video image would have VSL = 480.
Description
Reserved (Read Only). Reads back as 0.
VCK Bit Descriptions
SCL Bit Descriptions
VCK Register Map
RSVD
VID_CLR_KEY
AMD Geode™ LX Processors Data Book
Video Processor Register Descriptions
9
8
7
6
5
4
3
2
1
0