Canon Kabushiki Kaisha

Chuma Nagao

Daisuke Shiraishi

Akiyoshi Momoi

Takeshi Hiraoka

A data transferring apparatus includes a receiving unit configured to receive a transfer request containing attribute information that indicates a type of data transfer, a buffer configured to store the transfer requests received by the receiving unit, a storing unit configured to associate the attribute information with a first identifier and store the attribute information, and a sending unit configured to preferentially transmit, out of the plurality of transfer requests stored in the buffer, a transfer request containing attribute information that corresponds to the attribute information stored in the storing unit, wherein the sending unit is configured to transmit the first identifier associated with the attribute information that corresponds to the attribute information contained in the transfer request in place of the attribute information of the transfer request.

Data transferring apparatus and data transferring method

Transfer efficiency of data transfer in a single semiconductor device or between semiconductor devices is improved. A table is created by associating a combination of attribute information involved in data transfer with an identifier. When attribute information registered in the table is received, the attribute information is replaced with an identifier so that the information is compressed and transferred. Accordingly, transfer efficiency is increased in transmission or reception of a request and a response.

Data transfer apparatus, data transfer method, and inter-chip communication system

A packet accompanying data valid information is transferred at high efficiency within an integrated circuit or between integrated circuits. A character indicating data enable information is provided and an identifier indicating a data enable character is assigned onto the packet. When the data enable information is valid in series, the data enable characters are eliminated from the packet to be transferred.

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Kunitachi, Japan

Chuma Nagao