Digital Semiconductor 21172 Core Logic Chipset

This document is a product brief for the Digital Semiconductor 21172 core logic chipset, dated March 1996. The chipset is designed for high-performance PC market systems, specifically supporting the 21164 Alpha microprocessor. It consists of two gate arrays: the 21172-BA (Data Switch - DSW) and the 21172-CA (Control, I/O interface, and address - CIA). Key features include support for 8GB of ECC-protected physical memory, a 33-MHz PCI local bus interface, and optional L3 backup cache (1MB to 16MB). The document also provides a system block diagram, electrical and environmental characteristics, and a list of necessary components for building a high-performance PC using this chipset.