
1.
Introduction
The PNX15xx Series Media Processor is a complete Audio/Video/Graphics system
on a chip that contains a high-performance 32-bit VLIW processor, TriMedia
TM3260, capable of software video and audio signal processing, as well as general
purpose control processing. It is capable of running a pSOS operating system with
real-time signal processing tasks in a single programming and task scheduling
environment. An abundance of interfaces make the PNX15xx Series suitable for
networked audio/visual products. The processor is assisted by several image and
video processing accelerators that support image scaling and compositing.
Figure 1pictures a high level functional block diagram.
1.1 PNX15xx Series Functional Overview
The functionality achieved within the PNX15xx Series can be divided into three major
categories:
decode, processing, and display.
Decode functions take input data streams and convert those streams into memory
based structures that the PNX15xx Series may further process. Decode functions
may be simple, as in the case of storing 656 input video into memory, or substantially
more complex, as in the case of MPEG-2.
Chapter 2: Overview
PNX15xx Series Data Book – Volume 1 of 1
Rev. 3 — 17 March 2006
Product data sheet
Figure 1:
Block Diagram PNX15xx Series
SD or HD
YUV422
video in
Fast
General
Purpose
20
video/fgpi
router
audio in
audio out
2D DE
scaler &
de-interlace
10/100 LAN
DVD-CSS
2- layer
video out
HD/VGA/656
Fast general
purpose
interface
656 video/
up to 30-bit
up to 32-bit
RC
PCI 2.2
i2s
S/PDIF
i2s
S/PDIF
PNX15xx
16- or 32-bit i/f, up to 200 MHz DDR SDRAM
10
Flash
Fast general
purpose interface
LCD
RGB/YUV
Interface
VLD
IDE
RMII/MII PHY
32
video/fgpi
router
Fast General
Video/
I2C
32
Purpose
Interface
MemoryStickTM
up to 300 MHz,
5-issue
TM3260 VLIW