Module Reset Logic

3 Functional Description

PrPMC800/800ET Power Supplies

The PrPMC800/800ET module requires only a +3.3V input voltage. The processor core voltage and the Harrier core voltage are generated on the module from the +3.3V input using the LTC1702 dual synchronous switching regulator. In addition to the Harrier core voltage, the +2.5V supply provides the processor, Harrier, and L2 cache I/O voltages.

A block diagram of the PrPMC800/800ET module reset logic appears in Figure 3-2 on page 24.

There are five standard sources of reset on the PrPMC800/800ET. They are:

1.Power-Up reset

2.PMC PCI RST#

3.Watchdog Timer reset via the Harrier Watchdog 1 Timer output

4.Software generated module reset from Harrier RSTOUT control bit

5.Debug RESET_L signal from debug header

The following table describes the function of each reset source. A module reset includes the processor, Harrier and Ethernet. The RESETOUT_L pin must be tied into the baseboard reset logic, which drives PCIRST# in order to produce module reset.

Table 3-4. Reset Source Functions

Reset Source Type	Module Reset	PrPMC RESETOUT_L
		Active

Power-Up Reset	x	x

PMC PCI RST#	x

WDT1 Timer Output		x

SW Reset		x

Debug Reset		x

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

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.

Motorola PrPMC800/800ET Processor PMC Module PrPMC800/800ET Power Supplies, Module Reset Logic

Models: PRPMC800A/IH5 PrPMC800/800ET Processor PMC Module

PrPMC800/800ET Power Supplies