Title :
Design and Evaluation of Burst-Mode Asynchronous 8-Bit Microprocessor Using Standard FPGA Development System
Author :
Suto, Tatsuya ; Ichijo, Kenji ; Yoshioka, Yoshio
Author_Institution :
Grad. Sch. of Sci. & Technol., Hirosaki Univ., Hirosaki, Japan
Abstract :
Asynchronous circuits possibly have several potential advantages in comparison with synchronous one. In this paper, we attempt to introduce asynchronous circuit design method into the control unit of our 8-bit microprocessor by the burst-mode design method and implemented the asynchronous 8-bit microprocessor with outputs to observe all registers and the program counter by using a standard FPGA development system. And then we evaluate the following four features: the FPGA logic resource usage, the execution time per machine instruction and the power and energy consumption in comparison with the synchronous one using same standard FPGA development system. As future work, we will try to develop the fault tolerant asynchronous microprocessor by using output ports to observe all registers and the program counter within the microprocessor.
Keywords :
asynchronous circuits; field programmable gate arrays; logic design; microprocessor chips; FPGA logic resource usage; asynchronous circuit design; burst-mode asynchronous microprocessor; control unit; energy consumption; execution time; machine instruction; program counter; standard FPGA development system; word length 8 bit; Asynchronous circuits; Design methodology; Fault tolerance; Field programmable gate arrays; Microprocessors; Radiation detectors; Registers; 8-bit microprocessor; Asynchronous Finite State Machine; Asynchronous circuit; Burst-Mode design method; FPGA; MINIMALIST; fault tolerance;
Conference_Titel :
Defect and Fault Tolerance in VLSI Systems (DFT), 2010 IEEE 25th International Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-8447-8
DOI :
10.1109/DFT.2010.28
