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:
Apr. 08, 2008
Filed:
Dec. 09, 2004
Shinichiro Taguchi, Nagoya, JP;
Hideaki Ishihara, Okazaki, JP;
Yoshinori Teshima, Toyota, JP;
Naoki Ito, Nukata-gun, JP;
Shinichiro Taguchi, Nagoya, JP;
Hideaki Ishihara, Okazaki, JP;
Yoshinori Teshima, Toyota, JP;
Naoki Ito, Nukata-gun, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A single-chip microcomputer includes a logic circuit, a CPU and a flip-flop for synchronizing an interrupt-request signal, which is supplied by the logic circuit to the CPU, based on a clock signal. A multi-chip emulation apparatus comprises a peripheral evaluation chip, a CPU evaluation chip and a device, which are used for emulating functions of the logic circuit, the CPU and the flip-flop respectively. When the multi-chip emulation apparatus is used for emulating functions of the single-chip microcomputer in the development, the device for emulating functions of the flip-flop synchronizes the interrupt-request signal to absorb a delay time incurred by the interrupt-request signal due to a physical distance between the peripheral evaluation chip and the CPU evaluation chip so that an interrupt-handling timing in the emulation matches an interrupt-handling timing in the real operation of the single-chip microcomputer.