ARITHMETIC UNIT AND CONTROL DEVICE

• Main Authors: TAKAI SHOICHI, EGUCHI SHIGEYUKI, NISHIMURA YASUHIRO, FUKUDA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 12.04.2018
• Subjects: CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

PROBLEM TO BE SOLVED: To provide a new configuration for transmitting and receiving plural types of data having different characteristics via a common communication line.SOLUTION: The arithmetic unit constituting a control device includes: a communication circuit for exchanging data with one or a plurality of functional units via a communication line; a processor for executing a first process for issuing a first request for transmitting or receiving data via the communication line in every predetermined cycle and a second process for issuing a second request for transmitting data via the communication line when a predetermined condition is satisfied; and a control circuit for activating the communication circuit in response to the first request and the second request issued by the processor. The control circuit includes means for setting a prohibition period for disabling the second request in association with the execution cycle of the first process.SELECTED DRAWING: Figure 5 【課題】特性が異なる複数種類のデータを共通の通信線で送受信するための新たな構成が提供される。【解決手段】制御装置を構成する演算装置は、通信線を介して１または複数の機能ユニットとデータを遣り取りするための通信回路と、通信線を介してデータを送信または受信するための第１要求を予め定められた周期毎に発行するための第１処理と、予め定められた条件が満たされたときに通信線を介してデータを送信するための第２要求を発行する第２処理とを実行するプロセッサと、プロセッサにより発行される第１要求および第２要求に応答して、通信回路を起動する制御回路とを含む。制御回路は、第１処理の実行周期に対応付けて、第２要求を無効化する禁止期間を設定する手段を含む。【選択図】図５