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

Microcomputer having at least one input-output unit

Patent 4760524 Issued on July 26, 1988. Estimated Expiration Date: Icon_subject August 12, 2005. 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.

Patent References

Digital computer with multi-processor capability utilizing intelligent composite memory and input/output modules and method for performing the same
Patent #: 4276594
Issued on: 06/30/1981
Inventor: Morley

Undirectional looped bus microcomputer architecture
Patent #: 4378589
Issued on: 03/29/1983
Inventor: Finnegan ,   et al.

Microprocessor system with instruction pre-fetch Patent #: 4402042
Issued on: 08/30/1983
Inventor: Guttag

Inventors

Assignee

Application

No. 06/764918 filed on 08/12/1985

US Classes:

710/3, Input/Output addressing712/38Offchip interface

Examiners

Primary: Zache, Raulfe B.
Assistant: Mohamed, Ayni

Attorney, Agent or Firm

International Classes

G06F 13/10 (20060101)
G06F 12/06 (20060101)

Foreign Application Priority Data

1984-08-10 JP

Abstract

A microcomputer includes a central processing unit and at least one input-output (peripheral) unit selected by an address on a single semiconductor chip. The microcomputer further has an address changing circuit for assigning an arbitrary address to the input-output unit, so that the input-output address can be accessed by a variable address.

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