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. 03, 2006
Filed:
Nov. 17, 2003
Simon Charles Watt, Cambridge, GB;
Christopher Bentley Dornan, Cambridge, GB;
Luc Orion, Mouans Sartoux, FR;
Nicolas Chaussade, Mouans-Sartoux, FR;
Lionel Belnet, Villeneuve-Loubet, FR;
Stephane Eric Sebastien Brochier, Chateauneuf de Grasse, FR;
David Hennah Mansell, Usk, GB;
Jonathan Sean Callan, Cambridge, GB;
Simon Charles Watt, Cambridge, GB;
Christopher Bentley Dornan, Cambridge, GB;
Luc Orion, Mouans Sartoux, FR;
Nicolas Chaussade, Mouans-Sartoux, FR;
Lionel Belnet, Villeneuve-Loubet, FR;
Stephane Eric Sebastien Brochier, Chateauneuf de Grasse, FR;
David Hennah Mansell, Usk, GB;
Jonathan Sean Callan, Cambridge, GB;
ARM Limited, Cambridge, GB;
Abstract
A data processing apparatus is operable in a plurality of modes and in either a secure domain or a non-secure domain. When operating in a secure mode within the secure domain a program has access to secure data which is not accessible when the processor is operating in a non-secure mode. A vectored interrupt controller is provided to generate an exception handler address in response to an occurrence of an except condition. The vectored interrupt controller is programmable with parameters specifying for each exception condition whether an exception handler in the secure or the non-secure domain should be triggered and an exception handler address for use if the exception occurs when in the appropriate domain. The vectored interrupt controller also includes a parameter specifying a domain switching exception handler address for use if the exception condition occurs when the processor is not in the appropriate domain.