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. 17, 1996
Filed:
Jun. 06, 1991
Don S Keener, Boca Raton, FL (US);
Gregory J Moore, Boca Raton, FL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
This invention relates to personal computers, and more particularly to a personal computer using a small computer systems interface (SCSI) controller coupled directly to the local processor bus for controlling data transfer with storage memory devices such as fixed or removable media electromagnetic storage devices. The storage controller in accordance with this invention has internal volatile memory for transitory storage of data being communicated to coupled volatile memory. It further has control drivers interposed between the internal volatile memory and external volatile memory for controlling communication of data to the external volatile memory, with an enable driver and an enable receiver enchained between the control drivers and a source of signals controlling data communication. The enchained driver and receiver are connected for issuing a write signal to the external volatile memory prior to enablement of data communication through the control drivers and for sustaining a control signal communicated to the control drivers for enabling data communication until after deactivation of the write signal.