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:
Aug. 23, 1994
Filed:
Oct. 04, 1991
James W Keeley, Nashua, NH (US);
Thomas F Joyce, Westford, MA (US);
Bull HN Information Systems Inc., Billerica, MA (US);
Abstract
A processing unit tightly couples to a system bus and includes a local memory which is accessible from such bus. The processing unit includes a high performance microprocessor which tightly couples to the local memory through a high speed synchronous bus shared with a plurality of synchronous state machines. A microprocessor internal bus state machine and the plurality of state machines control local bus accesses for transferring commands generated by the microprocessor and commands transferred from the system bus under the control of an external state machine for execution by a local memory state machine and the processor state machine, respectively, which also couples to the system bus.