Patent attributes
Systems, methods, and apparatuses for offset cancellation are described. A memory device may determine that a channel is in a state that interrupts an active termination of the channel and enable the calibration of a reference voltage (e.g., by the memory device). For example, a channel used for data communications with a second device (e.g., a controller) may initially be in a state of active termination. The memory device may determine that the channel has transitioned to another state that interrupts the active termination. While the channel is in the other state, the memory device may calibrate a reference voltage of a receiver by transmitting calibration signals on the channel and detecting an offset associated with a reference voltage. The memory device may use the detected offset and the reference voltage to identify signals transmitted to the memory device over the channel.
