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. 10, 2010
Filed:
Nov. 19, 2001
Craig Nemecek, Seattle, WA (US);
Craig Nemecek, Seattle, WA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A method and apparatus for performing sleep and stall operations in a system that includes a device under test and that includes an emulator device that operates to perform a sequence of instructions in lock-step fashion with the device under test. When a first signal is received at the device under test, the device under test initiates the sleep function and turns off its clocks. When the clocks are turned off, the emulator device discontinues execution of the sequence of instructions. When the sleep function has been completed by the device under test a second signal is sent to the emulator device. Execution of the sequence of instructions is resumed when the number of clock signals received at the emulator device since the second signal was received equals a predetermined value.