Title :
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
Abstract :
This paper described the new design technology for implementation of noise-free microcontroller unit (MCU), called NfreeTM 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 NfreeTM technology can be reset, frozen or stopped to preserve the system from the malfunction due to the power noise. In an MCU with NfreeTM 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;
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
DOI :
10.1109/APASIC.2000.896987
