| 摘要 |
FIELD: data transmission and reception through data buses coupling set of data transmitters. SUBSTANCE: data transfer device has base structure with set of data transmission and reception units, set of bus interface circuits connected through respective buses to each of set of data transmission and reception units, direct storage access circuit that transfers data conveyed to one circuit of bus interface to other circuit of bus interface; set of bus interface circuits separates and combines data according to size of buses connected for transferring data to other circuit of bus interface. EFFECT: provision for concurrent data transfer among several data transmission and reception units. 14 cl, 25 dwg
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