3 Functional Description

Harrier I2C port 0 is also routed to pins on the P14 PMC user I/O connector. The connection to the PMC connector provides a means to interface to an optional configuration SROM on the baseboard. This allows the PrPMC800/800ET to determine hardware configuration information from the baseboard. Refer to the Harrier ASIC Programmer’s Reference Guide for SROM device address assignments.

10BaseT/100BaseTX Ethernet Channel

The PrPMC800/800ET module uses an Intel GD82559ER/82551IT Ethernet controller to implement a 10BaseT/100BaseTX Ethernet channel. The GD82559ER/82551IT is a lower power, lower cost version of the GD82559 without the wake-on-LAN features. The GD82559ER/82551IT consists of both the Media Access Controller (MAC) and the physical layer (PHY) in a single integrated package. A Pulse H0013 low profile transformer is used to supply the external magnetics. The module will support a front panel Ethernet connection via a low profile PC card style connector mounted at the front of the module (on models -12x1 and - 52x1). Optional rear I/O Ethernet is provided by routing the Ethernet transmit and receive signal pairs to P14 connector (on models -11x9, -12x9, and -52x9).

The 82559ER/82551IT interfaces to an AT93C46 serial EEPROM device that provides power- up configuration information for the 82559ER/82551IT. This is a 1Kb device organized as 64 16- bit words. Refer to the corresponding table in the VPD appendix of the PrPMC800/800ET Processor PMC Module Programmer’s Reference Guide, for the contents of this device.

Miscellaneous Control and Status

The Harrier ASIC contains a Miscellaneous Control and Status register that provides the PrPMC800/800ET module with the module fail LED control, PrPMC EREADY# pin status, PrPMC MONARCH# pin status, module reset control, and processor timebase enable control. Refer to the Harrier ASIC Programmer’s Reference Guide for additional details.

Timers

Timers on the PrPMC800/800ET board are provided by the Harrier ASIC. Refer to the Harrier ASIC documents for programming details on these timers.

32-Bit Timers

Four 32-bit timers are provided by Harrier (MPIC) that may be used for system timing or to generate periodic interrupts. Each timer is driven by a divide-by-eight prescaler which is synchronized to the Power PC processor clock. For a 100 MHz processor bus, the timer frequency would be 12.5 MHz.

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

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Motorola PrPMC800/800ET Processor PMC Module 10BaseT/100BaseTX Ethernet Channel, Miscellaneous Control and Status, Timers
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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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