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Functional Description 4–1

Functional Description

This chapter describes the functional operation of the AlphaPC 164SX. The descrip-

tion introduces the 21174 core logic chip and describes its implementation with the

21164PC microprocessor, its supporting memory, and I/O devices. Figure 1–1 shows

the AlphaPC 164SX major functional components.

Bus timing and protocol information found in other data sheets and reference docu-

mentation is not duplicated. See Appendix A for a list of supporting documents and

order numbers.

Note: For detailed descriptions of bus transactions, chip logic, and operation,

refer to the Alpha 21164PC Microprocessor Hardware Reference Man-

ual and the 21174 Core Logic Chip Technical Reference Manual. For

details of the PCI interface, refer to the PCI System Design Guide.

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Compaq AlphaPC 164SX DIGITAL UNIX Spezifikationen Seite 41