Design of a noise-free microcontroller

Author

Jeon, Hyun-Kyu ; Lee, Sang-Yoon ; Han, Dae-Keun

Author_Institution

Hyundai Electron. Co. Ltd., Cheongju, South Korea

fYear

2000

fDate

2000

Firstpage

375

Lastpage

378

Abstract

This paper described the new design technology for implementation of noise-free microcontroller unit (MCU), called Nfree^TM technology that is the solution proposed by Hyundai Electronics Co. Ltd. Preventing an erroneous operation due to noise is one of the basic requirements of many systems and is more seriously required by the MCU that controls the system. Also the power noise is one of the most serious noise sources that causes the MCU to malfunction. Therefore, we proposed the novel power noise preventing circuit scheme, called Nfree ^TM technology. If the power falls below the voltage level of power failure, the MCU with Nfree^TM technology can be reset, frozen or stopped to preserve the system from the malfunction due to the power noise. In an MCU with Nfree^TM technology, the voltage level of power failure and the operating mode that resets, freezes or stops the MCU can be selected by software according to the applications

Keywords

integrated circuit design; integrated circuit noise; microcontrollers; protection; Hyundai Electronics; MCU resetting; Nfree technology; clock freezing; design technology; malfunction; noise-free microcontroller; onchip power fail detector; power failure voltage level; power noise preventing circuit scheme; power noise source; Application software; Circuit noise; Clocks; Control systems; Microcontrollers; Noise cancellation; Noise level; Pins; Signal generators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

ASICs, 2000. AP-ASIC 2000. Proceedings of the Second IEEE Asia Pacific Conference on

Conference_Location

Cheju

Print_ISBN

0-7803-6470-8

Type

conf

DOI

10.1109/APASIC.2000.896987

Filename

896987