PNX1500E NXP Semiconductors, PNX1500E Datasheet - Page 82
PNX1500E
Manufacturer Part Number
PNX1500E
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1500E.pdf
(828 pages)
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Volume 1 of 1
Table 1: Partitioning of Functions to Resources
PNX15XX_PNX952X_SER_N_4
Product data sheet
function
video decoding/acquisition
digital video acquisition
MPEG-1/2/4 video decoding
DVD authentication & de-scrambling DVD-CSS
audio decoding and improvement processing
audio decoding AC3, AAC, MPEG
L1, L2, MP3, others
audio processing
graphics
2D graphics rendering and DMA
non-motion compensated de-
interlacing
motion compensated de-interlacing
motion estimation
temporal up conversion
luminance histogram measurement
Processing functions are those that modify an existing data structure and prepare
that structure for display functions.
Display functions take the processed data structures from memory and generate the
appropriate output stream. As in the case of the decode functions, display functions
can be relatively simple, such as an I
of multi-surface composited display.
All decoded data structures are stored in memory, even when further processing is
not required. This mechanism implies that there is no direct path between input and
output data streams. The memory serves as the buffer to de-couple input and output
data streams. Based on the mode of operation, there may be multiple data structures
in memory for a given input stream. The PNX15xx/952x Series uses the TM3260
CPU and a timestamping mechanism to determine when a specific memory data
structure is to be displayed.
The PNX15xx/952x Series implements the required decode, processing, and display
functions with a combination of fixed function hardware and TM3260 CPU software
modules. The PNX15xx/952x Series provides a good balance between those
functions that are implemented in fixed hardware and those that are programmed to
run on the TM3260 CPU. The following tables illustrate how the major tasks are
implemented under each of the three main functional areas, and how they map to
hardware resources or software.
Resource
VIP
software
software
software
2D DE
MBS
MBS + software software provides the MBS with a motion compensated field, to
software
software
MBS
Rev. 4.0 — 03 December 2007
description
includes optional horizontal down scaling or color space
conversion, and conversion to a variety of memory pixel formats
authentication & de-scrambling in hardware
decoders for almost any audio format available
improvement processing and mixing
median, 2-field majority select, 3-field majority select with or without
EDDI post pass for edge improvement
which the MBS applies the chosen de-interlacing algorithm
pixel accurate and quarter pixel accurate versions available
creates images temporally between two originals using motion
vectors
luminance histogram collection during a de-interlace or scaling
pass
2
S audio output, or very complex, as in the case
PNX15xx/952x Series
Chapter 2: Overview
© NXP B.V. 2007. All rights reserved.
2-82
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