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:
Apr. 22, 1997
Filed:
May. 08, 1995
Raymond D Pedrizetti, Issaquah, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A system for determining the connections between a PCMCIA controller and a programmable interrupt controller (PIC) by simulating an interrupt request from the PCMCIA controller and then evaluating the values contained in the interrupt request register of the PIC. An interrupt request association record is stored in response to receiving the simulated interrupt request at one of the interrupt request register inputs of the programmable interrupt controller. The interrupt request association record assigns the selected interrupt request line to the interrupt request register input that received the interrupt request signal. An interrupt request output from the PCMCIA controller is considered to be connected to a particular interrupt request register input of the PIC if a value in the interrupt request register of the PIC transitions from a logic low state to a logic high state, and then returns to the logic low state.