| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio selective calling receiver in which the effect of harmonic noise in a main clock in the case of reception and noise from a CPU using the main clock is reduced by inhibiting the switch interruption so as to stop the operation of the main block while a radio section makes reception. SOLUTION: When a radio section 2 recognizes the reception state, a radio section operation recognition section 4 allows a switch interrupt control section 6 to send a switch interrupt inhibit signal to a control section 3, then the control section 3 does not use a main clock 9 and the switch interrupt control section 6 allows a display control section 8 to display a switch interrupt inhibit state on a display section 7. Furthermore, when the radio section operation recognition section 4 recognizes nonoperation of the radio section 2, the section 4 allows the switch interrupt control section 6 to send a switch interrupt permission signal to the control section 3, the control section 3 starts the main clock 9 to conduct switch interrupt processing and the switch interrupt control section 6 allows the display control section 8 to display the switch interrupt operation state on the display section 7. |
