To provide an information processing device, an information processing method, and an information processing program that can control a possibility of malfunction of a device without requiring addition of a control signal line for device selection even if unexpected waveform variation occurs on a data line in the information processing device including two devices which perform half duplex communication with each other using at least the one data line.

An information processing device according to the invention includes a first control unit 101 and a second control unit 201 which performs half duplex communication with the first control unit 101 using at least one data line. In the case where communication is interrupted, the second control unit 201 stops in an output mode in which it performs transmission of data to the data line but does not perform reception in response to control by the first control unit 101.