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:
Aug. 25, 2009
Filed:
Oct. 31, 2007
Shin-nan Sun, Fremont, CA (US);
Limin Zhu, Fremont, CA (US);
Theodore Speers, San Jose, CA (US);
Gregory Bakker, San Jose, CA (US);
Shin-Nan Sun, Fremont, CA (US);
Limin Zhu, Fremont, CA (US);
Theodore Speers, San Jose, CA (US);
Gregory Bakker, San Jose, CA (US);
Actel Corporation, Mountain View, CA (US);
Abstract
A programmable system-on-a-chip integrated circuit device comprises at least one of a crystal oscillator circuit, an RC oscillator circuit, and an external oscillator input. A clock conditioning circuit is selectively coupleable to one of the programmable logic block, the crystal oscillator circuit, the RC oscillator circuit, and the external oscillator input. A real-time clock is selectively coupleable to one of the programmable logic block, the crystal oscillator circuit, the RC oscillator circuit, and the external oscillator input. A programmable logic block is coupled to the clock conditioning circuit and the real-time clock.