Periodic training for unmatched signal receiver

摘要

I/O parameters are adjusted based on a number of errors detected in a received training signal. A controller device sends the training signal while a memory device is in a training mode. The memory device samples the training signal and the system causes an adjustment to at least one I/O parameter based on a detected number of errors. Either the controller or the memory device can perform the error detection, depending on the configuration of the system. Either an I/O parameter of the controller or an I/O parameter of the memory device can be adjusted, depending on the configuration of the system.

主权项

1. A method comprising:
entering, by a memory device, a training mode of the memory device; receiving a training signal from a controller while in the training mode, the training signal including a data stream; sampling the data stream of the training signal with sampling circuitry; tracking, by the memory device, a number of data errors in the sampling of the data stream of the training signal; and causing an adjustment to at least one input/output (I/O) parameter based on the number of data errors.