PNX1301EH NXP Semiconductors, PNX1301EH Datasheet - Page 51

• Manufacturer Part Number: PNX1301EH
• Manufacturer: NXP Semiconductors

Specifications of PNX1301EH

• Lead Free Status / RoHS Status: Not Compliant

Overview
2.1
In this document, the generic PNX1300 name refers
to the PNX1300 Series, or the PNX1300/01/02/11
products.
PNX1300 is a successor to the TM-1300, TM-1100 and
TM-1000 media processors. For those familiar with the
TM-1300, the new features specific to the PNX1300 are
summarized in
TM-1100, the new features specific to the PNX1300 are
summarized in
TM-1000, new features for the PNX1300 are summa-
rized in
2.2
PNX1300 is a media processor for high-performance
multimedia applications that deal with high-quality video
and audio. These applications can range from low-cost,
dedicated systems such as video phones, video editing,
digital television, security systems or set-top boxes to re-
programmable, multipurpose plug-in cards for personal
computers. PNX1300 easily implements popular multi-
media standards such as MPEG-1 and MPEG-2, but its
orientation around a powerful general-purpose CPU
(called the DSPCPU) makes it capable of implementing
a variety of multimedia algorithms, both open and propri-
etary. PNX1300 is also easily configured in multiple pro-
cessor configurations for very high-end applications.
More than just an integrated microprocessor with unusu-
al peripherals, the PNX1300 is a fluid computer system
controlled by a small real-time OS kernel running on a
very-long instruction word (VLIW) processor core.
PNX1300 contains a DSPCPU, a high-bandwidth inter-
nal bus, and internal bus-mastering DMA peripherals.
Software compatibility between current and future Trime-
dia processor family members is at the source-code and
library API level; binary compatibility between family
members is not guaranteed.
Defining software compatibility at the source-code level
gives Philips the freedom to strike the optimum balance
between cost and performance for all chips in the family.
A powerful compiler and software development environ-
ment ensure that programmers never need to resort to
non-portable assembler programming. Programmers
use the library APIs and multimedia operations from C
and C++ source code.
Section
INTRODUCTION
PNX1300 FUNDAMENTALS
Section
Section
2.8.
2.6. For those familiar with the
2.7. For those familiar with the
PNX1300 is designed both for use as an accelerator in a
PC environment or as the sole CPU in cost-effective
standalone systems. In standalone system applications,
the PNX1300 external bus allows for glueless connection
of 8-bit wide ROM, EEPROM, or Flash memory for code
storage. The external bus also allows intermixing of
PCI2.1 master/slave peripherals and 8-bit simple periph-
erals, such as UARTs and other 8-bit microprocessor pe-
ripherals. This powerful external bus architecture gives
system designers a variety of options to configure low-
cost, high-performance system solutions.
Because it is based on a general-purpose CPU,
PNX1300 can also serve as a multifunctional PC en-
hancement vehicle. Typically, a PC must deal with multi
standard video and audio streams; and applications re-
quire both decompression and compression. While the
CPU chips used in PCs are becoming capable of low-
resolution, real-time video decompression, high-quality
decompression—not to mention compression—of stu-
dio-resolution video is still out of reach. Further, users
expect their systems to handle live video and audio with-
out sacrificing system responsiveness.
PNX1300 enhances a PC system by providing real-time
multimedia with the advantages of a special-purpose,
embedded solution—low cost and chip count—and the
advantages of a general-purpose processor—repro-
grammability. For PC applications, PNX1300 far sur-
passes the capabilities of fixed-function multimedia
chips.
Future media processor family members will have differ-
ent sets of interfaces appropriate for their intended use.
2.3
Key features of PNX1300 include:
• A very powerful, general-purpose VLIW processor
• Independent DMA-driven multimedia I/O units that
• DMA-driven multimedia coprocessors that operate
PRELIMINARY SPECIFICATION
core (the DSPCPU) that coordinates all on-chip
activities. In addition to implementing the non-trivial
parts of multimedia algorithms, the DSPCPU runs a
small real-time operating system driven by interrupts
from the other units.
properly format data to make software media pro-
cessing efficient.
independently and in parallel with the DSPCPU to
perform operations specific to important multimedia
algorithms.
PNX1300 CHIP OVERVIEW
by Gert Slavenburg
Chapter 2
2-1