| 摘要 |
PROBLEM TO BE SOLVED: To complete restoration processing in a short time in the case of restoration from a sleep state. SOLUTION: The waiting processing circuit 410 includes a sleep/restoration processing circuit 412 and an error measurement circuit 414, and the sleep/ restoration processing circuit 412 conducts processing for sleep (pause) state setting of a mobile station and restoration from the sleep state. The mobile station internally produces a master clock MCLK (Figures 3 to 5) on the basis of operations of an MPU and other circuits and a real time clock RCLK on the basis of operations of circuits at a comparatively low speed such as a calendar and clock. The sleep/restoration processing circuit 412 stops the master clock MCLK to bring the mobile station to the sleep state so as to minimize the power consumption. |
