The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Nov. 14, 1994
Hideyuki Iino, Kawasaki, JP;
Hiromasa Takahashi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A memory access system employs a pipe-line process in which access can be carried out for a microprocessor using one cycle of two clocks and for a microprocessor using one cycle of one clock. Access speed of a main memory can be considerably improved ensuring applicability in general use. A transition request signal to a pipe-line is received, a control signal that continues as long as the cycle number corresponding to at least the address first-out number of the pipe-line immediately after the start of the pipe-line operation is produced. Concurrently, a data complete signal indicating the completion of data access for a bank is produced during the time that either of the above two signals is also generating an address latch signal synchronized to a clock signal and routed to respective banks, for executing high speed data access.