SEMICONDUCTOR INTEGRATED CIRCUIT FOR COMMUNICATION AND BATTERY SAVING METHOD FOR THE SAME

摘要

A low power consumption IC for communication which can flexibly accommodate the variation of data rate or data processing load is provided at a low cost by using a single oscillation circuit. A doubler circuit (61) is connected between the output of the oscillation circuit (1) and a microcontroller circuit (69) or a frequency dividing circuit (2) is connected between the circuit (1) and a data receiving circuit (3). In addition, receiving addresses are stored in a dual port RAM (16). Moreover, the battery saving efficiency is improved by controlling the receiving frequency of a synchronization code.