| 摘要 |
A remote control receiving circuit for receiving a remote control signal from a transmitter includes a header interrupt generation circuit 160 that outputs a header interrupt signal S160 when detecting the header of the signal, a data interrupt generation circuit 170 that outputs a data interrupt signal S170 when the header has been detected and the predetermined data receiving is completed, and a switch 111 that selects the header interrupt signal S160 or data interrupt signal S170 in accordance with an instruction of the CPU 190. A CPU 190 has one interrupt port 191 for receiving the interrupt signal selected by the switch 111, and performs control in accordance with the received interrupt signal. Therefore, a remote control receiving system can reduces the codes, processing power, and resources of the CPU, which are used to implement the remote control signal receiving function, and reduce the cost of the entire system.
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