Motorola PrPMC800/800ET Processor PMC Module Thermal Validation, Thermally Significant Components

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Thermal Validation

B

Overview

Board component temperatures are affected by ambient temperature, air flow, board electrical operation, and software operation. In order to evaluate the thermal performance of a circuit board assembly, it is necessary to test the board under actual operating conditions. These operating conditions vary depending on system design.

While Motorola performs thermal analysis in a representative system to verify operation within specified ranges (see Table 0-1 on page 58), you should evaluate the thermal performance of the board in your application.

This appendix provides systems integrators with information which can be used to conduct thermal evaluations of the board in their specific system configuration. It identifies thermally significant components and lists the corresponding maximum allowable component operating temperatures. It also provides example procedures for component-level temperature measurements.

Thermally Significant Components

Table B-1 on page 60 summarizes components that exhibit significant temperature rises. These are the components that should be monitored in order to assess thermal performance. The table also supplies the component reference designator and the maximum allowable operating temperature.

You can find components on the board by their reference designators as shown in Figure B-1and Figure B-2. Versions of the board that are not fully populated may not contain some of these components.

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

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Contents Installation and Use Page Keep Away From Live Circuits Inside the Equipment Use Caution When Exposing or Handling a CRTGround the Instrument Do Not Operate in an Explosive AtmosphereFlammability Limited and Restricted Rights Legend Page Contents Connector Pin Assignments Modifying the Environment Contents List of Figures List of Figures List of Tables J2 Harrier Power-Up Configuration Header Pin AssignmentsList of Tables 2MB PrPMC800/800ET Models/ConfigurationsAbout This Manual 1MBAbout This Manual PRPMC800A/IH2 PRPMC800A/IH5PRPMC800A/IH4 PRPMC800A/IH3Overview of Contents Conventions Used in This Manual About This Manual Introduction Preparation and InstallationPrPMC800/800ET Description Carrier Board Requirements Monarch and Non-Monarch PrPMCsSystem Enclosure Start-Up Overview Overview of Start-Up ProceduresWhat you need to do Refer to Unpacking the Hardware PrPMC800/800ET ConfigurationPreparing the Hardware J2 Harrier Power-Up Configuration Header Pin Assignments Harrier Power-Up Configuration HeaderJumper On Jumper Off PrPMC800/800ET Headers, Connectors and Components ESD Precautions InstallationInstallation of PrPMC800/800ET on a VME or CompactPCI Board Installing a PrPMC800/800ET on a VMEmodule Operating Instructions Applying PowerOperating Instructions Status IndicatorsEthernet Port Adapter Cable Debug Serial PortPrPMC800/800ET Debug Page Functional Description FeaturesPrPMC800/800ET Features Feature DescriptionSrom General DescriptionPrPMC800/800ET Block Diagram Block DiagramL2 Cache ProcessorHarrier System Memory Controller / PCI Host Bridge Asic Option Power Register Bit Bus Signal Setting Harrier Power-Up ConfigurationHarrier Power-Up Configuration Settings Harrier Select Default Function DescriptionXCSR.XPAT0.DW XCSR.GCSR.PUSTXAD M66ENXCSR.XPAT2.DW ArbitrationFlash Memory XCSR.XPAT1.DWOnboard Sdram ECC MemoryOnboard Bank a Flash Optional Bank B FlashMiscellaneous Control and Status TimersBit Timers 10BaseT/100BaseTX Ethernet ChannelClock Generator Watchdog TimersInterrupt Routing and Generation Asynchronous Serial PortReset Source Type Module Reset PrPMC Resetoutl Active PrPMC800/800ET Power SuppliesModule Reset Logic Reset Source FunctionsPCI Interface PrPMC800/800ET Reset Block DiagramIDSELB, REQB#, and GNTB# Signals PRESENT# SignalMONARCH# Signal INTA#-INTD# SignalsDebug Header Eready SignalPCI Signaling Voltage Level ABORT# and RESET# SignalsMemory Maps Page PCI Mezzanine Card PMC Connectors Connector Pin AssignmentsPMC Connector P11 Pin Assignments GND VIO SDONE# SBO# PAR GND VIOPMC Connector P12 Pin Assignments PAR64 PMC Connector P13 Pin AssignmentsP14 PMC Connector P14 Pin AssignmentsSignal Description for P14 TXP TXN RXP RXN Lanterma Lantermb Ethernet Adapter ConnectorJ3 Ethernet Adapter Connector Pin Assignments J1 Debug Header Pin AssignmentsRsvd Signal Description for J1Shunt On Shunt Off Debug Serial Port Cable Cputrstl Pullup Cputck Cputms Sresetl Cpurstl Ckstpol GNDPrPMC Cable-001 Termination Overview PPCBugPPCBug Basics PPCBug Implementation Memory RequirementsMPU, Hardware, and Firmware Initialization Using PPCBug Debugger Commands Debugger CommandsCommand Description IOC GevinitGevshow IdleNopa PbootReset NpingDiagnostic Test Groups Diagnostic TestsTest Group Description Mpic IsabrdgeL2CACHE MaskPage Modifying the Environment Cnfg Configure Board Information BlockENV Set Environment Configuring the PPCBug ParametersSelect the identifier. Default = Default = $00 Auto Boot Abort Delay = 7? Default Starting Address is $00000000 ROM First Access Length 0 31 = 10? Serial Startup Code Master Enable Y/N=N? Electrical Characteristics SpecificationsSpecifications Mechanical CharacteristicsCharacteristics Specifications Environmental CharacteristicsEMC Compliance Thermally Significant Components Thermal ValidationThermal Validation Table B-1. Thermally Significant ComponentsFigure B-1. Thermally Significant Components Primary Side Preparation Component Temperature MeasurementMeasuring Case Temperature Measuring Junction TemperatureMeasuring Local Air Temperature Figure B-4. Mounting a Thermocouple Under a Heatsink Embedded Communications Computing Documents Related DocumentationTable C-1. Embedded Communications Computing Documents Table C-2. Manufacturers’ Documents Manufacturers’ DocumentsTable C-3. Related Specifications Related SpecificationsDocument Title and Source Publication Number Page CPU IndexFail LED IndexIDSELB, REQB#, GNTB# 25 INTA#-INTD# Xix

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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