| 摘要 |
PROBLEM TO BE SOLVED: To allow a master device to avoid an error due to the delay of data transferred from a slave device to the master device if synchronous serial data communication is performed between the master device and the slave device.SOLUTION: A master device 204D for performing synchronous serial data communication with a slave device on the basis of a clock includes: transmission preparation determination means (SPI control unit) 204D(1) for determining whether or not the slave device has prepared a data line (SI) for data transmission corresponding to a command from the master device 204D; and clock stop control means 204D(6) that stops the clock when the transmission preparation determination means 204D(1) has determined that the preparation of the data line (SI) is not completed, and resumes the supply of the clock when it has determined that the preparation of the data line (SI) is completed.SELECTED DRAWING: Figure 11 |
