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:
Sep. 26, 1995
Filed:
Jan. 25, 1993
David C Babin, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A cascadable peripheral (10) has at least two registers (51, 52, 53) of different sizes. Input data is shifted serially through a shift register (40) synchronously with a clock signal. A serial output of the shift register (40) is provided to a data output terminal (18) of the peripheral (10) for cascading. A counter (20) increments a state in response to the clock signal. A decode portion (30, 31, 32, 33, 35) activates one of a group of load signals, corresponding to one of the registers (51, 52, 53), in response to a state of the counter (20), when an enable signal becomes inactive. The active load signal causes the corresponding register to load a value presented from a parallel data output of the shift register (40). The counter (20) is reset in response to either the enable signal becoming inactive or the counter (20) reaching a maximum count corresponding to a size of the shift register (40).