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. 18, 1998
Filed:
Aug. 26, 1997
Raymond E Shapiro, Marlborough, MA (US);
Paul C Stanley, Houston, TX (US);
Steven Schumacher, Brighton, MA (US);
SystemSoft Corporation, Natick, MA (US);
Abstract
A digital data processor has a central processing unit (CPU) that operates in plural addressing modes and or more adapters for receiving peripheral devices, e.g., PCMCIA devices. A first peripheral device service subsystem that handles communications between peripheral devices coupled to the adapters and software clients executing on the CPU in a first addressing mode. A second peripheral device service subsystem that handles communications between peripheral devices coupled to the adapters and clients executing on the CPU in a second addressing mode. The first peripheral device subsystem includes a configuration management section that allocates digital data processor resources, e.g., memory space, input/output channels, direct memory access (DMA) channels and interrupt (IRQ) levels, used for communications between the peripheral devices and clients, regardless of whether those clients are executing in the first or second addressing modes.