{"title":"Creating a wider bus using caching techniques","authors":"D. Citron, L. Rudolph","doi":"10.1109/HPCA.1995.386552","DOIUrl":null,"url":null,"abstract":"The effective bandwidth of a bus and external communication ports can be increased by using a variant of data compression techniques that compacts words instead of data streams. The compaction is performed by caching the high order bits into a table and sending the index into the table along with the low order bits. A coherent table at the receiving end expands the word into it original form. Compaction/expansion units can be placed between processor and memory, between processor and local bus, and between devices that access the system bus. Simulations have shown that over 90% of all informative transferred can be sent in a single cycle when using a 32 bit processor connected by a 16 bit wide bus to a 32 bit memory module. This is for all forms of data, address, data, and instructions, and when a cache-based processor is used.<<ETX>>","PeriodicalId":330315,"journal":{"name":"Proceedings of 1995 1st IEEE Symposium on High Performance Computer Architecture","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"80","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1995 1st IEEE Symposium on High Performance Computer Architecture","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HPCA.1995.386552","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 80
Abstract
The effective bandwidth of a bus and external communication ports can be increased by using a variant of data compression techniques that compacts words instead of data streams. The compaction is performed by caching the high order bits into a table and sending the index into the table along with the low order bits. A coherent table at the receiving end expands the word into it original form. Compaction/expansion units can be placed between processor and memory, between processor and local bus, and between devices that access the system bus. Simulations have shown that over 90% of all informative transferred can be sent in a single cycle when using a 32 bit processor connected by a 16 bit wide bus to a 32 bit memory module. This is for all forms of data, address, data, and instructions, and when a cache-based processor is used.<>