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:
Dec. 10, 2013
Filed:
Jul. 22, 2010
Grant M. More, Edinburgh, GB;
Holger Haiplik, Swindon, GB;
Abhay Kejriwal, Swindon, GB;
Wolfson Microelectronics plc, Edinburgh, GB;
Abstract
Apparatus and method for power management and especially to power management integrated circuits (PMICs). In one aspect, the invention relates to a PMIC having an internal non-volatile memory (NVM) for storing boot settings for the PMIC. The PMIC also has control circuitry for detecting whether a source of boot settings is available, such as an NVM external to the PMIC, and, if so, using any settings stored in the external source in preference to the relevant settings stored in the internal NVM. The external settings can thus override any internal settings, which is useful for fault diagnosis and/or development. In one aspect the PMIC may have programming circuitry for automatically programming boot settings from an external source into the internal NVM.