IO common control circuit and remote controller

The utility model discloses an IO shared control circuit and a remote controller, and the IO shared control circuit comprises a processor, and a clock circuit, an LCD drive circuit, a button circuit,and an LED lamp circuit which are respectively connected with the processor. And the LCD driving circuit, the key circuit and the LED lamp circuit share at least one of the universal input/output ports. The LCD driving circuit, the key circuit and the LED lamp circuit share at least one of the general input/output ports of the processor, and there is no need to reserve a processor port for the LCDdriving circuit, the key circuit and the LED lamp circuit separately, thereby facilitating reduction of the number requirement of the general ports of the processor, and reducing the hardware cost. 本实用新型公开了一种IO共用控制电路及遥控器，包括处理器以及分别与所述处理器连接的时钟电路、LCD驱动电路、按键电路和LED灯电路，所述处理器具有多个通用输入输出端口，所述LCD驱动电路、所述按键电路和所述LED灯电路共用所述通用输入输出端口中的至少一个。LCD驱动电路、按键电路和LED灯电路共用处理器通用输入输出端口中的至少一个，无需为LCD驱动电路、按键电路和LED灯电路单独预留一个处理器端口，有利于降低处理器通用端口的数量需求，从而降低硬件成本