Communication system and communication method

A communication method for a communication system comprising a master device and at least two communication channels, wherein each channel comprises at least one chip coupled in series, and each chip comprises a communication input pin, a communication output pin, and at least one addressing pin, the method comprising:

• a) transmitting an address configuration command by the master device;
• b) receiving the address configuration command by at least first chip in each communication channel to enter an address configuration time interval;
• c) in the address configuration time interval, encoding a column address of the chip by the at least one first chip in each communication channel according to level information of each addressing pin of the chip, wherein connections of the addressing pin in the chip comprises one of floating, coupling with the communication input pin of the chip, and coupling with the communication output pin of the chip, and wherein the addressing pins of the at least one first chip in each communication channel perform different connections such that level information of the addressing pin of the at least first chip in each communication channel corresponds to one column address of the corresponding communication channel;
• and
• d) transmitting a communication data packet and identifying each communication channel according to the column address of the at least one first chip in each communication channel by the master device.