RADIO LSI DEVICE AND INTERFERING WAVE DETECTING CIRCUIT

摘要

A radio LSI device includes an interfering wave detecting circuit that receives an RSSI signal for a current transmit/receive channel. The interfering wave detecting circuit includes a field intensity determiner that determines whether or not the value of the RSSI signal is greater than a predetermined threshold value. The interfering wave detecting circuit also includes a duration counter that counts the duration of an interfering wave whose RSSI value is greater than the predetermined threshold value. The interfering wave detecting circuit also includes a duration comparator that, if the duration exceeds a duration comparative value, generates an interrupt signal. The radio LSI device changes the setting of the current transmit/receive channel in response to the interrupt signal.