Title :
QRAM-Quick access memory system
Author :
Niijima, Hideto ; Oba, Nobuyuki
Author_Institution :
IBM Japan Ltd., Tokyo, Japan
Abstract :
A quick access memory (QRAM) was developed that realizes a cost-effective high-performance memory architecture. The QRAM improves the effective data access speed by making maximum use of the page mode of memory, and hence acts like a pseudo-cache memory. For high performance and usability, it has three special features: built-in address latches/comparators, a direct handshake facility, and a multiple active island structure. It can communicate directly with the microprocessor by handshaking of the memory request and the memory ready. This reduces the amount of external logic needed for the memory system. The QRAM can be made with conventional technology
Keywords :
buffer storage; memory architecture; random-access storage; QRAM; Quick access memory system; built-in address latches; comparators; data access speed; direct handshake facility; high-performance memory architecture; multiple active island structure; page mode; pseudocache memory; Bridges; Cache memory; Control systems; Costs; Hardware; Laboratories; Memory architecture; Microprocessors; Random access memory; System-on-a-chip;
Conference_Titel :
Computer Design: VLSI in Computers and Processors, 1990. ICCD '90. Proceedings, 1990 IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-8186-2079-X
DOI :
10.1109/ICCD.1990.130266