PNX1700EH NXP Semiconductors, PNX1700EH Datasheet - Page 83
PNX1700EH
Manufacturer Part Number
PNX1700EH
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PNX1700EH.pdf
(832 pages)
Specifications of PNX1700EH
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant
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Philips Semiconductors
Volume 1 of 1
Table 1: Partitioning of Functions to Resources
PNX17XX_SER_1
Preliminary 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 PNX17xx Series uses the TM5250 CPU and
a timestamping mechanism to determine when a specific memory data structure is to
be displayed.
The PNX17xx Series implements the required decode, processing, and display
functions with a combination of fixed function hardware and TM5250 CPU software
modules. The PNX17xx Series provides a good balance between those functions that
are implemented in fixed hardware and those that are programmed to run on the
TM5250 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. 1 — 17 March 2006
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
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
Chapter 2: Overview
2-2
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