EXECUTION METHOD EXECUTED BY POSITION CALCULATING CIRCUIT, POSITION CALCULATING CIRCUIT, OPERATION CONTROL METHOD OF POSITION CALCULATING CIRCUIT, HOST DEVICE, AND ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To propose a technique for improving the convenience in acquiring the information from a position calculating circuit, and to reduce the power consumption related to information acquisition from the position calculating circuit. SOLUTION: In a wristwatch 1, a host CPU 10 sets the type of data to be acquired and outputs a type selection signal including the type to be acquired to a GPS position calculating unit 20, and then transits to a sleep mode. When the type selection signal is input from the host CPU 10, the GPS position calculating unit 20 sets the type to be acquired which is included in the type selection signal, as the type of data to be notified and starts the acquisition of the data to be notified on the basis of the GPS satellite signal. Then, when the acquisition of the data to be notified is completed, the data to be notified is stored in an external readable storage section 29, and the update notice signal is output to the host CPU 10. When the update notice signal is input, the host CPU 10 returns from the sleep mode to read and acquire from the storage section 29 the data to be acquired. COPYRIGHT: (C)2011,JPO&INPIT