DATA TRANSFER SYSTEM

PURPOSE:To simplify the transfer control between a CPU and a console device and the circuit constitution, by using a transfer control circuit, which is provided for executing an automatic display function, for transfer of key operation information on the console device. CONSTITUTION:When a key group...

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Bibliographic Details
Main Authors OKADA KATSUYUKI, FUKUSHIMA TOMOYOSHI, TATEISHI SUSUMU, SHIMIZU RIYOUICHI
Format Patent
LanguageEnglish
Published 19.06.1984
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PURPOSE:To simplify the transfer control between a CPU and a console device and the circuit constitution, by using a transfer control circuit, which is provided for executing an automatic display function, for transfer of key operation information on the console device. CONSTITUTION:When a key group 31 for operation is operated on a console device 3, a data transfer circuit 33 discriminates information of the operated key state and starts a transfer request transmitting circuit 32 in every certain cycle to transmit a transfer request 21 to a CPU4. The command for transfer stored in the circuit 33 is transmitted to the CPU4 through a transfer data line S23. A data transfer circuit 42 on the CPU4 side is operated with the period when the request S21 is transmitted to a transfer request receiving circuit 41, and a transfer response S22 is transmitted to the circuit 33. Simultaneously, data is transferred between a device 1 and the CPU4. When the response S22 is turned off, received data is analyzed in the circuit 33. If data from the CPU4 is panel display indicating data, it is displayed on a display circuit 34.
Bibliography:Application Number: JP19820215394