Kabushiki Kaisha Toshiba

Eiichi Katsumata

Koichi Tanaka

Akira Kanuma

Toshiyuki Yaguchi

Akihito Nishikawa

A data communication control device controls data transmission between a network bus and a system bus. The data communication control device includes a network bus interface connected to the network bus, a system bus interface connected to the system bus. A port 1 of the two-port memory in an FIFo/RAM is connected to the network bus interface, microprocessor, direct memory access through a first bus. A port 2 of the two-port memory in the FIFo/RAM is connected to the direct memory access through a second bus. The microprocessor is connected to the system bus interface through a third bus. The direct memory access is connected to the system bus interface through a fourth bus.

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Tokyo, Japan

Eiichi Katsumata