Motorola CPCI-6115 Service Manual download pdf (Page 36)

CPX8216 and CPX8216T Installation and Use (6806800A52C)

Chapter 2 System Architecture

Software Disconnection Process

The software disconnection process defines two additional states which are used when

quiescing activity on a board in preparation for extraction:

■ S3Q - The software is completing current operations, but is not allowed to start new ones.

When current operations are completed, the board transitions to S2.

■ S2Q - The board is quiesced. This is the same state as S2, except that no new operations

are allowed to be initiated.

The Software Disconnection Process proceeds as S3, S3Q, S2Q, S1, and finally S0.

Hardware Resources

This section briefly describes some of the blades that are available from Emerson that can be

used in the CPX8000 Series platforms to build a system for a variety of applications. For further

information on each of these components, refer to the specific documents listed in Appendix C,

Related Documentation. The following list is not fully representative of the different boards that

can be used, but by combining the CPX’s infrastructure with resources designed to use the

infrastructure, this architecture can provide a powerful platform that will support a wide range

of telecommunications network applications.

Application and Control Processor Blades

Application processor blades, typically based on Intel architecture processors, can be

programmed with standard Linux distributions. This makes them ideal to perform a wide range

of system functions such as: running user applications, acting as file servers, or providing an

interface to external databases. These blades include the CPN5365 Intel Pentium III, CPN5385

Intel Mobile Pentium III, CPV5370 Intel Pentium III processor boards, and associated transition

modules.

Control processor blades are typically optimized for real-time processing. They often

incorporate the latest PowerPC ® processor devices, delivering high performance with high

levels of power efficiency, while PMC sites allow extra interface customization. This makes them

ideal to run embedded control programs or to process communication protocol stacks. These

blades include the CPCI-6115 board, based on the MCP7457 PowerPC-compatible processor

family, and the related transition modules.

Device Drivers

In order to take full advantage of the high availability functions of the CPX8216 and to support

hot swap, board device drivers need to be enhanced. Drivers need to cease all activity when

the device is about to be hot-swapped, and they need to support initialization of the device

without support from the device firmware or BIOS.

Further, high availability device drivers need to be able to enter a standby mode while bus

control is being passed from one CPU to another. They also provide diagnostic interfaces for

run-time fault detection and for preinitialization testing of newly inserted boards.

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Motorola CPCI-6115 Service Manual Page 36