ALXD800EEXJCVD C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJCVD C3 Datasheet - Page 401
ALXD800EEXJCVD C3
Manufacturer Part Number
ALXD800EEXJCVD C3
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.ALXD800EEXJCVD_C3.pdf
(680 pages)
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
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Video Processor
6.7.6.4
The output from the Video Processor is connected via a
24-bit bus. Bytes on this bus are aligned as shown below:
The VOP takes this 24-bit 4:4:4 data bus and converts it to
a 16-bit 4:2:2 data bus (the Y component on the high byte,
the U/V components alternating on the low byte).
The VOP provides three different methods for translating
from 4:4:4 to 4:2:2 data depending on the value of the
mode select bits from the VOP Configuration register (VP
Memory Offset 800h[5:4]) as shown in Table 6-61.
Mode 0: 4:2:2 Co-sited
In this mode, the U/V samples are dropped on alternating
sample sets, resulting in the below representation.
Sampling algorithm:
Y, U, V : 4:4:4 Input data
Y’, U’, V’ : 4:2:2 Sampled data
Y1’ = Y1, U1’ = U1, V1’ = V1
Y2’ = Y2
Y3’ = Y3, U3’ = U3, V3’ = V3
etc.
AMD Geode™ LX Processors Data Book
Mode
0
1
2
[23:16]
[15:8]
[7:0]
Interface to Video Processor
Bits
00
01
10
Y
Cr (V)
Cb (U)
Table 6-61. VOP Mode
Luminance (Y) Samples
Chromance (U,V) Samples
Description
4:2:2 Co-sited (Recommended)
4:2:2 Interspersed
4:2:2 Interspersed, free-running
Mode 1: 4:2:2 Interspersed
In this mode, adjacent pairs of U/V sample data are aver-
aged, with the U/V samples coming from the same adja-
cent sample sets.
Sampling algorithm:
Y, U, V : 4:4:4 Input data
Y’, U’, V’ : 4:2:2 Sampled data
Y1’ = Y1, U1’ = (U1+U2)/2, V1’ = (V1+V2)/2
Y2’ = Y2
Y3’ = Y3, U3’ = (U3+U4)/2, V3’ = (V3+V4)/2
etc.
Mode 2: 4:2:2 Interspersed (free-running)
This mode is the same as Mode 1 with the exception that
the U sample is averaged between the first two samples,
and the V sample is averaged between the second and
third samples.
Sampling algorithm:
Y, U, V : 4:4:4 Input data
Y’, U’, V’ : 4:2:2 Sampled data
Y1’ = Y1, U1’ = (U1+U2)/2
Y2’ = Y2, V2’ = (V2+V3)/2
Y3’ = Y3, U3’ = (U3+U4)/2
Y4’ = Y4, V3’ = (V4+V5)/2
etc.
Luminance (Y) Samples
Chromance (U,V) Samples
Luminance (Y) Samples
Chromance (U) Samples
Chromance (V) Samples
33234H
401
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