Communication control system for transmitting, from one data pro

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Details

395843, G06F 1300

Patent

active

055881203

ABSTRACT:
In communication control devices having a DMA transfer function and communication control systems for performing a data transmission between such communication control devices, it is desired to reduce time required for processing. In accordance with the present invention, a transmitted data is written in a receiving side memory by a write instruction from the transmitting side CPU. Alternatively, DMA controllers and receiver side memories are changed from one to another in response to a format representing the transmission information. Alternatively, write addresses in the receiver side memory are changed from one to another depending on the format of transmission information. Alternatively, DMA transfer to a buffer memory is controlled by an address counter. In such a manner, a procedure for transfer of data can be simplified.

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patent: 4941089 (1990-07-01), Fischer
patent: 5054020 (1991-10-01), Meagher
patent: 5077655 (1991-12-01), Jinzaki
patent: 5093780 (1992-03-01), Sunahara
patent: 5175732 (1992-12-01), Hendel et al.
patent: 5265261 (1993-11-01), Rubin et al.

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