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. 12, 1995
Filed:
Jan. 28, 1994
Joseph A Thomsen, Chandler, AZ (US);
Franklyn H Story, Chandler, AZ (US);
David R Evoy, Tempe, AZ (US);
W Henry Potts, Phoenix, AZ (US);
Brian N Fall, Chandler, AZ (US);
Hrushikesh Nalubola, Tempe, AZ (US);
VLSI Technology, Inc., San Jose, CA (US);
Abstract
A serial bus Input/Output (I/O) system has multiple I/O devices which are all connected in daisy-chain fashion on a serial bus. These I/O devices service peripherals that may generate different interrupt requests or DMA requests to the system controller. These requests are encoded, serialized and transmitted to the system controller on the serial bus, allowing the system controller to service a large number of interrupt requests and DMA requests via the serial bus with a very small number of external pins.