Functional Description

3

Introduction

This chapter describes the PrPMC800/800ET Processor PMC Module on a block diagram level. The General Description provides an overview of the PrPMC800/800ET, followed by a detailed description of several blocks of circuitry. Figure 3-1 on page 15 shows a block diagram of the overall board architecture.

Detailed descriptions of other PrPMC800/800ET blocks, including programmable registers in the ASIC and peripheral chips, can be found in the PrPMC800/800ET Processor PMC Module Programmer’s Reference Guide and the Harrier ASIC Programmer’s Reference Guide, listed in Appendix C, Related Documentation. Refer to those documents for a more comprehensive set of functional descriptions.

Features

The following table summarizes the features of the PrPMC800/800ET processor module.

Table 3-1. PrPMC800/800ET Features

Feature

Description

 

 

Processor

Single MPC750-class or MPC7410 processor

 

Core frequencies of 450 MHz for MPC750-class, 450Mhz and

 

500Mhz for MPC7410, 400Mhz for MPC7410(N)

 

Bus clock frequency of 100 MHz.

 

Address and data bus parity

 

 

L2 Cache

Backside L2 Cache using pipeline burst-mode SRAMS:

 

1MB for MPC750-class and MPC7410 (N), 2MB for the MPC7410

 

Data bus parity

 

 

Flash Memory

Bank A: 32MB soldered on-board using two 128 Mbit devices.

 

Bank B: Second bank of flash can be located on host board and

 

accessed through the PMC P14 connector.

 

 

SDRAM

Double-Bit-Error detect, Single-Bit-Error correct across 72 bits

 

Single bank of 16-bit wide devices onboard provide 64MB, 128MB,

 

256MB, or 512MB SDRAM.

 

 

Memory Controller

Harrier’s SMC (System Memory Controller).

 

 

PCI Host Bridge

Harrier’s PHB (PCI Host Bridge).

 

 

Interrupt Controller

Harrier’s MPIC (Multi-Processor Interrupt Controller).

 

 

PrPMC800/800ET Processor PMC Module Installation and Use (PrPMC800A/IH5)

13

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Motorola PrPMC800/800ET Processor PMC Module Functional Description, PrPMC800/800ET Features, Feature Description
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PRPMC800A/IH5, PrPMC800/800ET Processor PMC Module specifications

The Motorola PrPMC800/800ET Processor PMC Module, specifically the PRPMC800A/IH5 variant, represents a significant advancement in embedded processing technology. Often utilized in telecommunications, aerospace, and defense applications, this PMC module is designed to provide robust performance in demanding environments, making it suitable for high-speed data processing and communication tasks.

At the core of the PrPMC800 module is the PowerPC 750 architecture, known for its efficiency and power management capabilities. This 32-bit RISC processor is clocked at speeds reaching up to 800 MHz, allowing it to handle complex computations and multitasking scenarios effectively. The processor architecture supports a variety of software environments, including real-time operating systems and VxWorks, which enhances its adaptability across diverse applications.

One of the standout features of the PRPMC800A/IH5 module is its memory capacity. The module supports up to 1 GB of SDRAM, offering ample space for processing large datasets and executing multiple applications simultaneously. Furthermore, the integrated PCI bus facilitates high-speed connectivity with other modules and components in the system, ensuring rapid data transfer rates essential for real-time processing tasks.

An important characteristic of the PrPMC800 module is its thermal and environmental resilience. Designed with military-grade standards, it operates reliably in extreme conditions, including high temperatures and vibrations. This makes it particularly suitable for rugged applications where standard commercial-grade processors may fail.

The module also incorporates advanced I/O capabilities, featuring dual Gigabit Ethernet ports which enhance networking performance. Additional serial ports and interrupt handling further improve the module's versatility, allowing it to interface seamlessly with various peripheral devices and systems.

In summary, the Motorola PrPMC800/800ET Processor PMC Module, represented by the PRPMC800A/IH5 model, is an exemplary solution for applications requiring high performance, reliability, and adaptability. With its powerful PowerPC architecture, generous memory capacity, robust I/O capabilities, and proven ruggedness, this processor module stands out as a preferred choice for engineers and developers working in critical industries.
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