非同步微處理器實作-以8051為例
| Autor: | 李琢琛 |
|---|---|
| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 8051 microprocessor is often used in embedded systems as the microcontroller. We modify the synchronous 8051 circuit by adding asynchronous circuit design concept for achieving a higher performance. We design handshaking components using pulse mode to replace the clock signal of synchronous. Based on different circuit behavior, we give appropriate delay time to the handshaking components. Three different lengths of delay time are used. Using Quartus II as the developing software, we also implement a synchronous 8051 in Altera DE0 board to confirm its functionality correctness and use a hardware timer for performance comparison. It is shown that the asynchronous 8051 is over 30% faster than the synchronous one, while only 3% of the circuit area is added. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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