Serial Interface Capable of Operating in Two Different Serial Data Transfer Modes (Serial Interface Capable of Operating in Two Different Serial Data Transfer Modes)

摘要

The serial interface includes a first port capable of transmitting and receiving data in serial form. The first p-channel transistor is connected to the first port. A first n-channel transistor is coupled to the first port. Channel transistor is configured to disable the first p-channel transistor when the first port is configured to operate in the first serial data transfer mode so that the first n-channel transistor operates in an open- Lt; / RTI The second port may transmit and receive a clock signal used to control data transmission through the first port. The second p-channel transistor is connected to the second port. The second n-channel transistor is connected to the second port. The second control circuit is coupled to the second p-channel transistor to disable the second p-channel transistor so that the second port, in which the second n-channel transistor operates in an open-drain fashion, operates in a second serial data transfer mode.