...However, as integration increases and LSIs evolve into systems, it becomes difficult to standardize them as in the case of memory. In principle, any complex logical processing can be realized with a general-purpose, high-performance microprocessor unit (abbreviated MPU) and a large-capacity ROM, but since an MPU is a system that runs on a program, its processing speed is inferior to that of a specially designed LSI. Therefore, to improve the performance of a high-performance LSI, an LSI that is specially designed for that system and shares functions with the MPU is required. ... *Some terminology explanations that mention "microprocessor" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…しかし集積度が高くなりLSIがシステムにまで進化してくると,メモリーの場合のように標準化することが困難になってくる。原理的には汎用で高性能のマイクロプロセッサーmicroprocessor unit(略してMPU)と大容量ROMがあればどんな複雑な論理処理でも実現可能であるが,MPUはプログラムで動作するシステムなので,処理速度は専用設計のLSIに劣る。したがって高機能LSIの性能向上には,そのシステムのために専用に設計され,MPUと機能を分担するLSIが必要となる。… ※「microprocessor」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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