Arrangement with a microprocessor

• US 20020103944A1
• Filed: 11/13/2001
• Published: 08/01/2002
• Est. Priority Date: 11/15/2000
• Status: Active Grant

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Feuser, Markus, Koenig, Kurt
• Granted Patent: US 6,801,956 B2
• Time in Patent Office: Days
• US Class Current: 710/2
• CPC Class Codes: G06F 3/002 Specific input/output arrangements not covered by G06F3/01 - G06F3/16 other optical apparatus G02B27/00
• CPC Class Codes: G06K 19/07733 the record carrier containing at least one further contact interface not conform ISO-7816

Abstract

An arrangement with a microprocessor, particularly a microprocessor for use in a chip card is described.

The object of the invention is to utilize a USB interface also for microprocessors, particularly for smart card controllers. A particular object of the invention is to operate a smart card controller having more than one interface.

This object is solved by an arrangement with a microprocessor which is connected to at least two interfaces for exchanging data signals, wherein at least one of these interfaces is a USB interface.

Claims

1. An arrangement with a microprocessor which is connected to at least two interfaces for exchanging data signals, wherein at least one of these interfaces is a USB interface.

2. An arrangement as claimed in claim 1, characterized in that the microprocessor is formed for use in a chip card.

3. An arrangement as claimed in claim 1 or 2, characterized by a device for automatically switching or selecting the interfaces.

4. An arrangement as claimed in claim 1, 2 or 3, characterized in that the microprocessor and/or the arrangement for automatically switching or selecting the interfaces is formed for use in optionally a USB interface and/or an interface in accordance with ISO14443 and/or an interface in accordance with ISO7816.