U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Split embedded DRAM processor

Patent 6026478 Issued on February 15, 2000. Estimated Expiration Date: Icon_subject December 23, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventor

Application

No. 997364 filed on 12/23/1997

US Classes:

712/24, Long instruction word712/34, Including coprocessor712/215Simultaneous issuance of multiple instructions

Examiners

Primary: Donaghue, Larry D.

Attorney, Agent or Firm

International Class

G06H 015/00

Abstract

A processing architecture includes a first CPU core portion coupled to a second embedded dynamic random access memory (DRAM) portion. These architectural components jointly implement a single processor and instruction set. Advantageously, the embedded logic on the DRAM chip implements the memory intensive processing tasks, thus reducing the amount of traffic that needs to be bussed back and forth between the CPU core and the embedded DRAM chips. The embedded DRAM logic monitors and manipulates the instruction stream into the CPU core. The architecture of the instruction set, data paths, addressing, control, caching, and interfaces are developed to allow the system to operate using a standard programming model. Specialized video and graphics processing systems are developed. Also, an extended very long instruction word (VLIW) architecture implemented as a primary VLIW processor coupled to an embedded DRAM VLIW extension processor efficiently deals with memory intensive tasks. In different embodiments, standard software can be accelerated either with or without the express knowledge of the processor.

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