Abstract: A semiconductor integrated circuit includes a combinational circuit to output a state value and a parity value, a first parity check circuit to perform a parity check based on the state value and the parity value stored in a first FF circuit and output a first parity error, a second parity check circuit to perform a parity check based on the state value and the parity value stored in a second FF circuit and output a second parity error, and a selector to, when the first parity error is not output but the second parity error is output, output the state value in the first FF circuit to the combinational circuit, and when the first parity error is output but the second parity error is not output, output the state value in the second FF circuit to the combinational circuit.

Abstract: A semiconductor integrated circuit includes: a first-combinational-circuit to output a state-value depending on an input signal and a parity-value of the state-value which are stored by a first-flip-flop-circuit; a first-parity-check-circuit to perform a parity check based on the state-value and the parity-value and output a first-parity-error; a second-flip-flop-circuit to store the state-value and the parity-value output by the first-combinational-circuit; a second-parity-check-circuit to perform a parity check based on the state-value and the parity-value stored in the second-flip-flop-circuit and output a second-parity-error; and a selector to, when the first-parity-error is not output but the second-parity-error is output, output the state-value stored in the first-flip-flop-circuit to the first-combinational-circuit, and when the first-parity-error is output but the second-parity-error is not output, output the state-value stored in the second-flip-flop-circuit to the first-combinational-circuit, wherei

Abstract: A relay device receives packets from an information processing apparatus or a relay device. The relay device updates a value of priority data indicating an accumulated wait time for arbitration contained in each of the received packets according to an elapsed time. The relay device selects a packet to be transmitted according to a result of comparison of the values of the pieces of the priority data contained in the received packets. The relay device transmits the selected packet to another relay device.

Abstract: A transmission system includes a data sending device that sends data at a first speed and a data receiving device that receives, by using a plurality of clocks having different phases, data that has been sent by the sending device at the first speed. The data sending device sends, to the data receiving device, some of the data, which is sent at the first speed, at a second speed that is lower than the first speed. Furthermore, in accordance with determination as to whether the content of the received data sent at the second speed matches a corresponding portion of the data received by using a plurality of clocks, the data receiving device changes the timing at which the data that has been sent at the first speed is received.

Abstract: A system includes a transmitting device configured to transmit a packet, and a receiving device connected through a switch device to the transmitting device, the receiving device being configured to receive the packet, wherein the switch device includes a first memory storing first expected value information indicative of an expected value of a fixed value region, the fixed value region being a region whose value is determined in advance in a transaction layer packet, and a switch control unit configured to compare a value of the fixed value region of the transaction layer packet received from the transmitting device with the expected value and make an error response to the transmitting device if the value of the fixed value region is different from the expected value.

Abstract: A configuration method performs a configuration of a FPGA circuit by setting configuration data from a configuration circuit to the FPGA circuit. The method counts, within the FPGA circuit, a number of times a configuration of the FPGA circuit fails. The method adjusts, within the FPGA circuit, the configuration data at a time when the configuration failed if the counted number exceeds an upper limit value, and re-executes the configuration based on the adjusted configuration data. The method sets the configuration data in which the configuration is succeeded from the FPGA circuit to the configuration circuit when the configuration is successful.

Abstract: A configuration method performs a configuration of a FPGA circuit by setting configuration data from a configuration circuit to the FPGA circuit. The method counts, within the FPGA circuit, a number of times a configuration of the FPGA circuit fails. The method adjusts, within the FPGA circuit, the configuration data at a time when the configuration failed if the counted number exceeds an upper limit value, and re-executes the configuration based on the adjusted configuration data. The method sets the configuration data in which the configuration is succeeded from the FPGA circuit to the configuration circuit when the configuration is successful.