Abstract: The invention relates to a serial data transfer method for exchanging data between two electronic bus stations. The bus connection consists of two lines, the first line being dedicated to data/control signals and the second line being dedicated to a power supply voltage. Data transfer is started by pulling the first line to an activated potential for a first period of time, and then leaving the first line inactive for a second period of time. Data transmission commences via the first and second lines after the second period of time has elapsed. Preferably, data is transferred in a number of blocks in the data frame.

Abstract: The invention relates to a simple serial data transfer method for the exchange of data between two electronic bus stations. The bus connection consists of two lines wherein the first line is dedicated to data/control signals and a second line is dedicated to a power supply voltage. A data transfer from the transmitting station to the receiving station is started by pulling the first line to an activated potential for a first period of time. After elapse of the first period of time the transmitting station leaves said first line inactive for a second period of time. The transmitting station commences data transmission via said first and second line after elapse of said second period of time. Preferably, data is transferred in a number of blocks in the data frame. The first block concerns a synchronization block and the last block is a checksum block.