Transmission device and transmission method

A transmission device comprising:

• temporary storage units that are provided for each port receiving input data, store the data temporarily, and output the temporarily stored data in response to a read enable signal;
• a storage unit that performs time-division multiplexing on the data output from the temporary storage units in response to the read enable signal and stores the data;
• a flow monitoring unit that monitors a data flow for each of the ports;
• and
• a control unit that selects a temporary storage unit that is a read enable target from the temporary storage units corresponding to the ports to which the data is input, by a weighted round robin system in accordance with the data flow for each of the ports, and outputs the read enable signal to the selected temporary storage unit, wherein
• the control unit selects the temporary storage unit that is a read enable target by the weighted round robin system corresponding to the data flow for each of the ports when an operation speed of the internal clock is controlled at a low speed.

A transmission device comprising:

• temporary storage units that are provided for each port, receiving input data, store the data temporarily, and output the temporarily stored data in response to a read enable signal;
• a storage unit that performs time-division multiplexing on the data output from the temporary storage units in response to the read enable signal and stores the data;
• a flow monitoring unit that monitors a data flow for each of the ports:
• and
• a control unit that selects a temporary storage unit that is a read enable target from the temporary storage units corresponding to the ports to which the data is input, by a weighted round robin system in accordance with the data flow for each of the ports, and outputs the read enable signal to the selected temporary storage unit, wherein
• the control unit selects the temporary storage unit that is a read enable target by a round robin system when an operation speed of the internal clock is controlled at a certain speed.

A transmission method of a transmission device that includes temporary storage units that are provided for each port receiving input data, store the data temporarily, and output the temporarily stored data in response to a read enable signal and a storage unit that performs time-division multiplexing on the data output from the temporary storage units in response to the read enable signal and stores the data, the transmission method causing the transmission device to execute a process comprising:

• monitoring a data flow for each of the ports;
• selecting a temporary storage unit that is a read enable target from the temporary storage units corresponding to the ports to which the data is input, by a weighted round robin system in accordance with the data flow for each of the ports;
• outputting the read enable signal to the selected temporary storage unit,
• wherein a weight according to the weighted round robin system assigned to the temporary storage unit that is the read enable target in accordance with a data flow for each of the ports and the selecting selects the temporary storage unit in descending order of the weight.