Patent
1995-04-20
1996-12-24
Kriess, Kevin A.
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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Hayasaka Noboru
Kosuka Toshiya
Shitara Yasuharu
Kriess Kevin A.
Sanyo Electric Co,. Ltd.
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