Digital Semiconductor Alpha 21264 Microprocessor Product Brief Al

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Digital Semiconductor Alpha 21264 Microprocessor Product Brief Al

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Alpha 21264
Digital Semiconductor Alpha 21264 Microprocessor Product Brief
Alpha 21264 microprocessor, with benchmarks over SPECint95 SPECfp95, with spectacular bandwidths over GB/s cache over GB/s memory, enables system designer produce highest performance systems ranging from clients enterprise servers. Systems implemented with Alpha microprocessors have been industry's performance leaders since their introduction 1992.
Applications
Supports Windows NT-the world's fastest growing operating system. Microsoft chosen Alpha first Windows 64-bit platform. Microsoft releases Windows applications concurrently Alpha Intel systems. Runs Windows non-native Windows applications using DIGITAL FX!32 binary translator. Supports DIGITAL UNIX-the first 64-bit UNIX operating system.
Benefits
Supports OpenVMS, VxWorks, Linux. Optimizes visual computing (video graphics) using powerful floating-point unit Alpha motion-video instructions (MVI). Real-time authoring (MPEG2 AC-3). Simplifies development single dual Alpha 21264-based system using 21272 core logic chipset (21272).
System developers deliver 21264 solution that: Will exceed end-user expectations performance Windows compatibility. Provides investment protection migration path higher speed 21264s future generations Alpha microprocessors. multiple chip sources-Digital Semiconductor, Samsung, Mitsubishi.
Description
21264 will provide users with quantum leap performance that will: Enable real-time visual computing. Perform instant data mining. Implement internet commerce. Enhance medical imaging. Solve most complex, large data-set problems quickly. research centers developing solutions complex problems disciplines such medicine polymers.
21264 third-generation 64-bit Alpha microprocessor. includes latest Alpha architecture enhancements, such motion-video instructions byte/word operations. 21264 completely controls optional cache provides flexible timing support wide range cache memory devices such those listed here: Commodity 133-MHz register-to-register burst SRAMs GB/s) 250-MHz late-write SRAMs GB/s) 333-MHz dual-data clock-forwarded SRAMs GB/s)
1997 Subject Change
EC-R2YTB-TE
Pipeline Operation Sequence
21264 four-way out-of-order-issue microprocessor that performs dynamic scheduling, register renaming, speculative execution. 21264 pipeline contains four integer execution units. units perform memory-address calculations load store operations. also contains floating-point execution units add, divide, square root, multiply functions. 21264 pipeline stages perform following operations: Cycle 0-Instruction fetch using branch prediction Cycle 1-Instruction data transferred register rename hardware Cycle 2-Rename (map) instruction registers Cycle 3-Issue instructions from queues Cycle 4-Read register file Cycle 5-Execute integer floating-point instructions Cycle 6-Write results interface unit, containing memory cache control units, maintains coherency between Dcache optional cache main memory.
More Information
learn more about availability 21264, contact your local semiconductor distributor. learn more about Digital Semiconductor's product portfolio, visit Digital Semiconductor World Wide Internet site: contact Digital Semiconductor Information Line: United States Canada 1-800-332-2717 Outside North America 1-510-490-4753 Electronic mail address semiconductor@digital.com technical support, contact Digital Semiconductor Customer Technology Center: Phone (U.S. international) 1-508-568-7474 1-508-568-6698 Electronic mail address ctc@hlo.mts.dec.com
While DIGITAL believes information this publication correct date publication, subject change without notice. Digital Equipment Corporation 1997. rights reserved. Printed U.S.A. DIGITAL, DIGITAL FX!32, Digital Semiconductor, DIGITAL logo, OpenVMS, AlphaGeneration design mark trademarks Digital Equipment Corporation. Digital Semiconductor Digital Equipment Corporation business. Intel registered trademark Intel Corporation. Linux registered trademark Croce, William Della, Microsoft Windows registered trademarks, Windows trademark Microsoft Corporation. Mitsubishi registered trademark Mitsubishi Denki Kabushiki Kaisha. Samsung trademark Samsung Electronics America, Inc. UNIX registered trademark United States other countries, licensed exclusively through X/Open Company Ltd. other trademarks registered trademarks property their respective owners.
Shifter
Branch Predictor
Integer Register Rename
Integer Issue Queue (20)
Integer Register File
Shifter Multiplier Address Address 64KB Data Cache Interface Unit System Bits)
Four Instructions
Instruction Cache (64KB) (2-Set)
FloatingPoint Register Rename
FloatingPoint Issue Queue (15)
FloatingPoint Register File
Floating-Point Add, Divide, Square Root Floating-Point Multiply
Cache (128 Bits)
Physical Address Bits)
FM-05575.AI4
Characteristics
Power supply Operating temperature Storage temperature range Power dissipation Package Transistor count Process size
=90°C maximum -55°C +125°C (estimated) 588-pin grid array (PGA) 15.2 million 0.35 micron CMOS six-layer metal Approximately
1997 Subject Change

Digital Semiconductor Alpha 21264 Microprocessor Product Brief Al

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