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:
Oct. 08, 1996
Filed:
Aug. 31, 1994
David K Ford, Gilbert, AZ (US);
Bernard E Weir, III, Chandler, AZ (US);
Motorola, Schaumburg, IL (US);
Abstract
A data conversion circuit receives input data from external sourcing logic and performs a parallel-serial conversion. Likewise, a data conversion circuit performs a serial-parallel conversion and presents output data to external sinking logic. In the parallel-serial conversion (10), the input data is translated (12) and stored in a register (14). A multiplexer (16) rotates through the data to provide the serial output. In the serial-parallel conversion (70), the input data is sequenced into a multiplexer (74) to achieve the parallel data word. The parallel data word is stored in a register (76) before presenting it to external logic. Phase delay logic (22) sets the delay of a transfer data control signal that requests data be read or written. Once the proper delay is determined by experimentation, the phase delay logic controls the phase of the transfer data control signal to request more data at the correct time, or present more data at the correct time, to allow maximum operating speed for the data converter.