ALXD800EEXJCVD C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJCVD C3 Datasheet - Page 431

• Manufacturer Part Number: ALXD800EEXJCVD C3
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJCVD C3

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

Video Processor Register Descriptions
6.8.3.12 CRT Clock Select (CCS)
VP Memory Offset 058h
Type
Reset Value
This register is made up of read only reserved bits and spare bits with no functions.
6.8.3.13 Video Y Scale (VYS)
VP Memory Offset 060h
Type
Reset Value
6.8.3.14 Video X Scale (VXS)
VP Memory Offset 068h
Type
Reset Value
AMD Geode™ LX Processors Data Book
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
63:32
31:20
19:0
Bit
Name
RSVD (RO)
Y_ACC_INIT
VID_Y_SCL
Y_ACC_INIT
X_ACC_INIT
R/W
00000000_00000000h
R/W
00000000_00000000h
R/W
00000000_00000000h
Description
Reserved (Read Only). Reads back as 0.
Y Accumulator Initial Value. Load this value before each video frame. Works with verti-
cal scaling, in case a sub-line offset is required prior to displaying video. Pad 4 LSBs with
0 when loading.
Video Y Scale Factor. Bits [19:16] represent the integer part of vertical scale factor of
the video window according to the following formula:
Y_SCL_INT = 1/Ys
Where:
Ys = Arbitrary vertical scaling factor.
Bits [15:0] represent the fractional part of vertical scale factor of the video window
according to the following formula:
VID_Y_SCL = FFFFh * 1/Ys
Note:
If no scaling is intended, set to 10000h. Will be greater than 10000h when down-
scaling. Will be less than 10000h when upscaling.
VYS Bit Descriptions
VYS Register Map
VXS Register Map
RSVD
RSVD
VID_Y_SCL
VID_X_SCL
9
9
8
8
33234H
7
7
6
6
5
5
4
4
3
3
2
2
1
1
431
0
0