PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 660

• Manufacturer Part Number: PNX1500E
• Manufacturer: NXP Semiconductors

Specifications of PNX1500E

• Lead Free Status / Rohs Status: Not Compliant

NXP Semiconductors
Volume 1 of 1
Table 6: References for the MPEG-2 Macroblock Header Data
PNX15XX_PNX952X_SER_N_4
Product data sheet
Item
MV Field Sel[0]0] to
MV Field Sel[1][1]
Motion Code[0][0][0] to
Motion Code[1][1][1]
Motion Residual[0][0][0]
to Motion
Residual[1][1][1]
Start Code
dmvector[1] and
dmvector[0]
CBP
Quant Scale
Figure 3:
MPEG-1 Macro Block Header Output Format
First Forward Motion Vector
31
First Backward Motion Vector
31
31
31
Shaded areas represent bits not implemented in the MPEG-1 specification.
These bits are written as zeros.
30
30
25
Default Value
Undefined
Undefined
Undefined
-
Undefined
-
-
Esc Count
MPEG-1 Parsing
For each MPEG-1 macroblock parsed by the VLD, four 32-bit words of macroblock
header information will be output from the VLD. Refer to
The fields described in
1 video standard. See
Motion Code [0][0][0]
Motion Code [0][1][0]
29
29
17
23
MBA Inc
References from MPEG-2 Video Standard, IS 13818-2 Document
Section 6.2.5 and 6.2.5.2
Section 6.2.5.2.1 and Table B-10
Section 6.2.5.2.1; the corresponding rsize bits are extracted from the bitstream
and stored as left justified; to get the final value shift the given number by (8 -
corresponding rsize). The rsize values are stored in MP_VLD_PI register
Copy of the internal start-code register; see
Section 6.2.5.2.1 and Table B-11; signed 2-bit integer from Table B11.
Section 6.2.5, 6.2.5.3 and Table B-9
Section 6.2.5; 5 bits from bitstream; use Table 7-6 to compute the quant scale
value.
Rev. 4.0 — 03 December 2007
Motion Residual [0][0][0]
23
slice_start_code
Motion Residual [0][1][0]
23
11
MB Type
Chapter 21: MPEG-1 and MPEG-2 Variable Length Decoder
Table 7
Figure 3
6
for more details on the macroblock header data
15
15
may or may not be valid depending upon the MPEG-
…Continued
4
16
Motion Code [0][0][1]
Motion Code [0][1][1]
13
13
3
14
12
2
PNX15xx/952x Series
Section 5. Register
7
7
Motion Residual [0][0][1]
10
Motion Residual [0][1][1]
Figure
CBP
1
First MB
quant scale
1.
4
0
© NXP B.V. 2007. All rights reserved.
Descriptions.
w0
w1
w2
w3
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