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. 05, 1995
Filed:
Oct. 18, 1994
James E Margeson, III, Santa Clara, CA (US);
Chips and Technologies, Inc., San Jose, CA (US);
Abstract
A memory controller is provided in which the address path is disabled by a sequencer to reduce power consumption when the sequencer is in an IDLE mode. When access is requested by the bus, the sequencer changes into an ALERT mode, thereby enabling the address path. Subsequently the sequencer then changes into an EXECUTE mode to perform data transfer operations. After the transfer is completed, the sequencer returns to the ALERT mode and an inactive time counter begins counting. If no access is requested before the counter reaches a predetermined number of counts, the sequencer returns to the IDLE mode and the address path is disabled to save power. However, if another cycle request occurs while in the ALERT mode, the EXECUTE mode is entered into immediately.