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:
Jun. 17, 1997
Filed:
May. 01, 1995
R Scott Tetrick, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
An arbiter for the local bus of a computer system. The system contains a bridge and a plurality of agent devices that are all connected to a local bus. The bridge links the local system to a remote system. The bridge and one of the agents (DEFER agent) within the local system can communicate in correspondence with the Non-uniform memory access(NUMA) standard. The local system also contains an agent (DEFERless agent) that does not comply with the NUMA standard. The arbiter provides access to the local bus in response to a request from one of the agents on a corresponding bus access signal line. If the DEFERless agent generates a remote access request and the bridge cannot immediately service the request, the bridge provides a negative acknowledge to the agent and disables the DEFERless agent bus access signal so that the DEFERless agent cannot control the local bus. The remaining agents can access the local bus even when the DEFERless agent is waiting for service from the bridge. The bridge enables the bus access signal of the DEFERless agent when the bridge can serve a remote access request.