| abstract |
Proposed is a network interface (12) designed for two-wire reception via a serial bus. The interface (12) has a differential receiver (14) connected to two input line (RX0, RX1). The interface (12) also has means for detecting fault conditions in the bus lines (18, 19). The interface is designed in such a way that, when a fault is detected, the interface goes over to single-wire operation in order to maintain the flow of data. This is done by applying a fixed clamping potential to one input line (RX0, RX1), the clamping potential being chosen such that the potential difference between the two input lines (RX0, RX1) is the same for both bit levels. |