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. 24, 1996
Filed:
Mar. 24, 1995
Brian R Bennett, Laguna Niguel, CA (US);
AST Research, Inc., Irvine, CA (US);
Abstract
A system for inhibiting interrupts during posted write transfers in a computer system utilizes a buffer to store incoming data and addresses while monitoring incoming addresses to determine if the address is an Input/Output reference to an interrupt controller. If an Input/Output reference to an interrupt controller is detected, a counter is incremented which outputs a logical zero output. A signal indicating a counter value of zero is provided as an input to an AND gate. A second input to the AND gate is provided from an interrupt controller. When the counter contains a non-zero value, a zero input is provided to the AND gate and a zero output is provided to the system bus, regardless of the output from the interrupt controller, inhibiting all further interrupts. Thus, when an interrupt mask is set by a CPU, the present invention immediately inhibits further interrupts from occurring, thereby permitting processing to continue without interruption. As a result, processing time is increased.