| 摘要 |
PROBLEM TO BE SOLVED: To provide a synchronous circuit and a master device that make the synchronous timing of each slave device accord even if different delay difference occurs in communication between the master device and each slave device.SOLUTION: A synchronous circuit 10 adjusts the transmission timing of a transmission frame to be transmitted to a slave device when it communicates frames with the slave device it can connect to. The synchronous circuit includes: a counter 62 that measures an interval from the generation timing of a transmission frame 68 to the reception timing of a reception frame transmitted by the slave device in response to the reception of the transmission frame as the amount of delay 64 (counter value) per transmission of a transmission frame; and a delay adjustment circuit 66 for delaying the transmission timing of the transmission frame on the basis of the amount of delay.SELECTED DRAWING: Figure 1 |
