One-wire serial data transmission circuit and one-wire serial data transmission method

摘要

The one-wire serial data transmission circuit has a master circuit 1 and a slave circuit 4. The master circuit 1 includes a data clock adder 2 for writing (writing) and a data receiver 3 for reading (reading). Have. The slave circuit 4 includes an active generator 5, a data clock separator 6 for writing (writing), and a data transmitter 7 for reading (reading). The master circuit 1 and the slave circuit 4 are connected by one signal line 8, and when the master circuit 1 writes data to the slave circuit 4, a signal obtained by combining the clock signal and the data signal in the master circuit 1 is output. The signal is transmitted to the slave circuit 4 via the signal line 8, and the transmitted signal is taken out of the transmitted signal through the data clock separator 6 to obtain a clock signal and a data signal.