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. 07, 1998
Filed:
Nov. 18, 1994
Eric Todd Hennenhoefer, Essex Jct., VT (US);
Jonathan Henry Raymond, Underhill, VT (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
Apparatus and method for emulating a circuit having at least one multiport RAM that requires at least two programmable device to be emulated. The multiport RAM has an array of storage elements, a read multiplexer, and a write multiplexer and is partitioned into a number of slices, each of which is capable of being programmed into one of an array of programmable devices. In one embodiment, each slice is another multiport RAM having the same depth, number of read ports, and number of write ports as the multiport RAM being emulated, but having a narrower width than the multiport RAM being emulated. In another embodiment, the multiport RAM is partitioned into read slices and write slices, which will typically be of different widths. The read slices comprise the read multiplexers. The write slices comprise the array of storage elements and the write multiplexers.