3 Functional Description

Harrier Power-Up Configuration

The Harrier ASIC XAD30-XAD0 pins provide configuration information for Harrier at power-up reset time. The following table lists the default power-up reset state of these pins for the PrPMC800/800ET module. The Select Option column indicates whether the power-up setting can be changed by jumper, or if the setting is fixed and cannot be changed. The Default Power- Up Setting column indicates the default values for the standard PrPMC800/800ET product. Default settings for jumper options indicate power-up values with jumpers not installed.

Table 3-2. Harrier Power-Up Configuration Settings

Harrier

Select

Default

Function/

Description

XAD

Option

Power-

Register Bit

 

Bus

 

Up

 

 

Signal

 

Setting

 

 

 

 

 

 

 

XAD[30]

Jumper J2

1

Hawk data mode

Enable/Disable (1/0) Hawk

 

pins 15-16

 

XCSR.XPGC.HDM

16-bit data ordering mode for

 

 

 

 

Xports configured for Hawk

 

 

 

 

addressing mode. Xport 1

 

 

 

 

(flash bank B) is configured

 

 

 

 

for Hawk compatibility mode.

 

 

 

 

If disabled, use Harrier byte

 

 

 

 

ordering mode.

 

 

 

 

 

XAD[29]

Fixed

0

UART clock select

Select external clock source

 

 

 

 

for UART.

 

 

 

 

 

XAD[28]

Jumper J2

0

PCI slave

Enable/disable (1/0)

 

pins 9-10

 

configuration holdoff

configuration space hold off. If

 

 

 

XCSR.BPCS.CSH

enabled, accesses to the PCI

 

 

 

 

configuration space from

 

 

 

 

another PCI master results in

 

 

 

 

a disconnect retry. Local

 

 

 

 

PrPMC800/800ET software

 

 

 

 

must clear this register bit to

 

 

 

 

enable access after inbound

 

 

 

 

address and attribute fields

 

 

 

 

have been set.

 

 

 

 

 

XAD[27]

Fixed

0

PCI slave

All of Harrier’s PCI

 

 

 

configuration mask

configuration registers are

 

 

 

XCSR.BPCS.CSM

visible from PCI space.

 

 

 

 

 

XAD[26]

Jumper J2

0

Processor holdoff

Enable/disable (1/0)

 

pins11-12

 

XCSR.BXCS

processor hold off at power-

 

 

 

 

up. If enabled, processor is

 

 

 

 

held in reset.

 

 

 

 

 

XAD[25]

Fixed

0

SDRAM external

There are no external buffers

 

 

 

register

in series with the BAx, RAx,

 

 

 

XCSR.SDTC.SDER

WE, RAS or CAS signals.

 

 

 

 

 

XAD[24]

Fixed

1

Response to

Harrier responds to

 

 

 

unmapped address-

unmapped address only

 

 

 

only cycles

cycles.

 

 

 

XCSR.GCSR.AOAO

 

 

 

 

 

 

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

17

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Motorola PrPMC800/800ET Processor PMC Module, PRPMC800A/IH5 manual Harrier Power-Up Configuration Settings

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.