Methods and apparatus for transmitting a signal in a single direction using bidirectional driver circuits

摘要

An integrated circuit may include a first logic region having a first bidirectional driver circuit and a second logic region having a logic circuit and a second bidirectional circuit. The first bidirectional driver circuit may be coupled to the second bidirectional driver circuit via a conductive path. The second bidirectional circuit may receive a dynamic control signal from the logic circuit to selectively transmit a signal to the first bidirectional driver circuit based on the dynamic control signal. The first logic region further includes an additional logic circuit. The additional logic circuit may provide an additional dynamic control signal to the first bidirectional driver circuit to selectively transmit an additional signal to the second bidirectional driver circuit over the conductive path. To prevent current contention, only one bidirectional driver circuit may be activated to drive the conductive path at a given time.

主权项

1. A logic region on an integrated circuit, comprising:
a bidirectional circuit comprising a first driver circuit and a second driver circuit that is cross-coupled with the first driver circuit; and a logic circuit coupled to the bidirectional circuit that receives a control signal and an input bit, wherein the logic circuit generates a dynamic control signal based on the control signal and the input bit that controls a signal output from the bidirectional circuit in a single direction with respect to the bidirectional circuit, and wherein the logic circuit comprises:
a first logic gate coupled to the first driver circuit that receives the control signal and the input bit; anda second logic gate coupled to the second driver circuit that receives the control signal and an additional input bit.