Sharing hardware resources between D-PHY and N-factorial termination networks

摘要

A termination network for a receiver device is provided to support both D-PHY signaling and N-factorial signaling. The first end of each of a plurality dynamically configurable switches is coupled to a common node. A first end of each of a plurality of resistances is coupled to a second end of a corresponding switch. A plurality of terminals receive differential signals and each terminal is coupled to a corresponding second end of a resistance. Each of a plurality differential receivers is coupled between two terminals of the termination network, wherein a first differential receiver and a second differential receiver are coupled to the same two terminals, the first differential receiver is used when the differential signals use a first type of differential signal encoding, the second differential receiver is used when the differential signals use a second type of differential signal encoding.

主权项

1. A termination network for a receiver device, comprising:
a plurality dynamically configurable switches (844a-d), a first end of each switch coupled to a common node (849); a plurality of resistances (848), a first end of each resistance (848) coupled to a second end of a corresponding switch (844a-d); a plurality of terminals (811), each terminal (811) coupled to a corresponding second end of a resistance (848); a plurality differential receivers (820, 821, 822, 823), each receiver (820, 821, 822, 823) coupled between two terminals of the plurality of terminals, wherein a first subset of differential receivers (820a, 821, 822a, 823) are used for a first type of differential signal encoding and a second subset of differential receivers (820b, 822b) are used for a second type of differential signal encoding, and at least a first differential receiver (820, 822) is shared by both the first and second sets of differential receivers.