3 Functional Description

Table 3-2. Harrier Power-Up Configuration Settings (continued)

Harrier

Select

Default

Function/

Description

XAD

Option

Power-

Register Bit

 

Bus

 

Up

 

 

Signal

 

Setting

 

 

 

 

 

 

 

XAD[9]

BankB_SEL

x

Xport channel 0

Enable/Disable (1/0) Xport

 

 

 

reset vector source

channel 0 (flash bank A) as

 

 

 

 

reset vector source,

 

 

 

 

depending on state of

 

 

 

 

baseboard jumper.

 

 

 

 

 

XAD

Fixed

11

Xport channel 1 data

Set Xport channel 1 (flash

[8:7]

 

 

width

bank B) to 16-bit width, Hawk

 

 

 

XCSR.XPAT1.DW

addressing mode.

 

 

 

 

 

XAD[6]

Fixed

1

Xport channel 1

Enable Xport channel 1 (flash

 

 

 

reset vector source

bank B) as reset vector

 

 

 

 

source if Xport channel 0 is

 

 

 

 

disabled.

 

 

 

 

 

XAD

Fixed

xx

Xport channel 2 data

Unused.

[5:4]

 

 

width

 

 

 

 

XCSR.XPAT2.DW

 

 

 

 

 

 

XAD[3]

Fixed

0

Xport channel 2

Disable Xport channel 2 as

 

 

 

reset vector source

Reset Vector source

 

 

 

 

 

XAD

Fixed

xx

Xport channel 3 data

Unused.

[2:1]

 

 

width

 

 

 

 

XCSR.XPAT2.DW

 

 

 

 

 

 

XAD[0]

Fixed

0

Xport Channel 3

Disable Xport channel 3 as

 

 

 

Reset Vector Source

Reset Vector source

 

 

 

 

 

Arbitration

The Harrier ASIC contains arbiters for the PPC bus (60x bus mode only) and the PCI bus. The PPC arbiter is used to arbitrate between the processor and the Harrier PPC bus master for ownership of the PPC bus. The processor is connected to the Harrier arbiter CPU0_REQ/CPU0_GNT signal pair (XARB3/XARB0).

The Harrier PCI bus arbiter is disabled in the standard board configuration. Per the VITA-32 199x Processor PMC Standard, the PCI bus arbitration must be provided by the baseboard.

Flash Memory

The PrPMC800/800ET supports two banks of flash memory. Bank A is onboard flash, while bank B is optional flash located on the host board and accessed through the PMC P14 connector.

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

19

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Motorola PrPMC800/800ET Processor PMC Module, PRPMC800A/IH5 manual Arbitration, Flash Memory, XCSR.XPAT1.DW, XCSR.XPAT2.DW

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.