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:
Jul. 08, 1997
Filed:
Jan. 03, 1995
Gary J O'Brien, Pheonix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit (20) and a method for selecting a circuit module (M.sub.N) from a plurality of circuit modules (M.sub.0 -M.sub.N) coupled to a common bus (23). The circuit (20) includes a plurality of resistor divider networks (RD.sub.0 -RD.sub.N), wherein a single resistor divider network is coupled to a corresponding circuit module. Each resistor divider network (RD.sub.0 -RD.sub.N) provides the corresponding circuit module with an analog voltage upon initialization of the circuit (20). The analog voltage is converted into a digital voltage and serves as a unique address for the corresponding circuit module (M.sub.0 -M.sub.N). An analog electrical signal on the common bus (23) is converted into a digital electrical signal which is compared with the addresses of the plurality of circuit modules (M.sub.0 -M.sub.N). The circuit module having an address that matches the digital electrical signals is selected for receiving data or control signals from external circuitry.