Communication modem for supporting multiple interfaces and method of setting an interface in the same

摘要

Disclosed is a method of setting an interface in a communication modem supporting a plurality of interfaces. The method includes determining a first mode in which an interface to the device is set in advance when it is detected to receive a signal from a device connected to the communication modem. The method also includes waiting for a reception of data after integrated pins belonging to the communication modem is set to correspond to the first mode. The method also includes determining a change of the first mode according to a result of receiving the data for a predetermined time.

主权项

1. A method of setting an interface in a communication modem supporting a plurality of interfaces, the method comprises:
determining, by the communication modem, a first interface mode for communicating with a device if it is detected that the communication modem connects with the device; setting integrated pins of the communication modem based on the first interface mode to receive data of the first interface mode and to prevent a reception of data of a second interface mode; waiting for a reception of data of the first interface mode for a predetermined time; determining the second interface mode for communicating with the device if data of the first interface mode is not received for the predetermined time; setting the integrated pins of the communication modem based on the second interface mode to receive data of the second interface mode; transmitting an initialization packet to determine a profile of the second interface mode through the integrated pins set to the second interface mode; and determining the profile of the second interface mode based on a voltage combination of the integrated pins on which a response of the initialization packet is received.