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. 01, 1997
Filed:
Jun. 07, 1995
Stephen D Holland, Boise, ID (US);
Charles L Ingalls, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
An integrated circuit multiport memory supports synchronous access through a serial port. In operation, a multiport memory of the present invention is coupled to a free running clock signal and a clock enable signal for internally synchronizing serial access. The external clock enable signal prevents incrementing the sequence of serial access when serial access is interrupted. In a synchronous memory of the present invention, the write data signal need not be held after the active edge of the serial clock, since serial data hold time is made independent of serial access memory write timing parameters. When serial data signals are conveyed on a bidirectional line of a asynchronous serial data port of the present invention, a direction control circuit of the present invention is responsive to transfer and write enable signals and independent of the conventional serial output enable signal.