| 摘要 |
A command determiner does not send a master command which it has received from a master device through a first interface circuit to a slave device if it determines that the master command does not need to be relayed. In this case, a power controller sets the power mode of a second interface circuit to a low power mode, and a response controller sends, as a slave command, a substitute command corresponding to the master command, which the command determiner has received from the master device through the first interface circuit, to the master device through the first interface circuit. |
