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1.3.

Key Features and Benefits

The P8X32A design frees developers from common complexities of embedded systems programming.

1.3.1.

32-bit Multicore Architecture

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True parallel processing with eight symmetric 32-bit processors (cogs) in one microcontroller

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Multi-cog run-time management (run/wait/stop) easily solves event-handling problems and eliminates the need for interrupts. This greatly simplifies programming for asynchronous and synchronous events, resulting in a responsive and easily maintained application.

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20 MIPS per cog, 160 MIPS total with all cogs running

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Solves mixed-bandwidth needs common to embedded applications

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Multi-purpose design lowers part count while increasing system capabilities

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Developer-driven cog assignments bring flexible response and deterministic timing to embedded applications

1.3.2.

Clock System and Wait Instructions

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Flexible Clock Modes

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Two internal, one external, plus optional 1x–16x PLL; up to 80 MHz system clock

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Switchable in code at run-time; low frequency for low-power periods, high frequency for high-bandwidth moments

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Shared System Clock facilitates synchronization between cogs

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WAIT Instructions

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Deliver powerful synchronous / asynchronous event management

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Set dedicated event cogs to an always ready, very low power state

1.3.3.

Programming Languages and Resources

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Spin (object-based, high-level) and Assembly (PASM; low-level); used together for thorough development, i.e. fast development in Spin plus fast execution with prewritten high-speed PASM drivers

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Third-party support: C, BASIC, and more

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Enhanced Assembly Language

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Conditional execution for individual instructions; enables jitter-free signal generation and event handling

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Optional flag and result writing for individual instructions

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Open-source Objects

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Objects are shared freely via the Propeller Object Exchange and Propeller Tool libraries

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Select objects that fit a need, easily integrate them into a Propeller application

1.3.4.

Flexible I/O and Peripheral Interface

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32 I/O Pins

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All general-purpose I/O after boot-up; accessible by every cog simultaneously

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Single-instruction access to any individual I/O pin or any contiguous I/O pin group

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Easily move designed functions between pins for simple system board layout

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Multi-function Counters

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Configurable state machines generate or sense repetitive signals per clock cycle

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Measure frequency, detect edges, count cycles, D/A or A/D conversion, and more

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Operate autonomously with optional run-time monitoring and adjusting

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Two counters per cog

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Video Generators

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RGB: VGA; 8 I/O pins

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Composite: NTSC, PAL; 1-pin (B/W), 3-pin (typical), or 4-pin (optional)

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One generator per cog

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Software Peripherals

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Peripheral interfaces built with software and inexpensive passive components; not single-function on-chip hardware

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Software-based interfaces are flexible; enhance as peripheral needs arise — no need to redesign with a chip variant

1.4.

Applications

The P8X32A is particularly useful in projects that can be vastly simplified with simultaneous processing, including:

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Industrial control systems

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Sensor integration, signal processing, and data acquisition

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Handheld portable human-interface terminals

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Motor and actuator control

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User interfaces requiring NTSC, PAL, or VGA output, with PS/2 keyboard and mouse input

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Low-cost video game systems

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Industrial, educational or personal-use robotics

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Wireless video transmission (NTSC or PAL)

1.4.1.

Corporate and Community Support

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Sales or technical support: (916) 632-4664

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Email sales: sales@parallaxsemiconductor.com

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Email support: support@parallaxsemiconductor.com

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Engineer-moderated Parallax Semiconductor sub-forum is available from http://forums.parallax.com

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Parallax-hosted Propeller Object Exchange library: http://obex.parallax.com