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:
Jul. 17, 2001
Filed:
Aug. 18, 1998
Ali Alasti, Los Altos, CA (US);
Govind V. Malalur, Fremont, CA (US);
ATI International SRL, Hastings, BB;
Abstract
The present invention provides a two-port memory to connect a microprocessor bus to multiple peripherals. In one embodiment, an apparatus for an IO gateway subsystem of a microprocessor includes a bus of the microprocessor connected to a two-port memory, and a first peripheral connected to the two-port memory and a second peripheral connected to the two-port memory. In particular, the two-port memory communicates with the bus at a first clock rate, the two-port memory communicates with the first peripheral at a second clock rate, and the two-port memory communicates with the second peripheral at a third clock rate, in which the first clock rate, the second clock rate, and the third clock rate are asynchronous (e.g., the clocks have different phases, or the clocks have different frequencies).