Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A memory controller configured to control a non-volatile memory device includes: a signal generator configured to generate a plurality of control signals comprising a first signal and a second control signal; a core configured to provide a command for an operation of the non-volatile device; and a controller interface circuit configured to interface with the non-volatile memory device, wherein the controller interface circuit comprises a first transmitter connected to a first signal line and a second signal line; and a first receiver connected to the first signal line, and the first control signal and the second control signal are respectively transmitted to the non-volatile memory device through the first signal line and the second signal line.

Abstract: A memory controller for a memory device, the memory controller including: a command generator configured to generate a command signal based on a system clock signal, and to generate phase difference information for the command signal; and a memory interface configured to receive the command signal and the phase difference information from the command generator, to adjust a timing of the command signal based on the phase difference information, and transmit the command signal of which the timing is adjusted as a timing adjusted command signal to the memory device.

Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A memory controller configured to control a non-volatile memory device includes: a signal generator configured to generate a plurality of control signals comprising a first signal and a second control signal; a core configured to provide a command for an operation of the non-volatile device; and a controller interface circuit configured to interface with the non-volatile memory device, wherein the controller interface circuit comprises a first transmitter connected to a first signal line and a second signal line; and a first receiver connected to the first signal line, and the first control signal and the second control signal are respectively transmitted to the non-volatile memory device through the first signal line and the second signal line.

Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A storage device includes a nonvolatile memory device, and a controller that reads first data from the nonvolatile memory device. When a number of first errors of the first data is not smaller than a first threshold value, the controller determines whether the first errors include timing errors arising from a variation of signal transmission timings between the nonvolatile memory device and the controller and performs a retraining operation on the signal transmission timings when the first errors include the timing errors.

Abstract: A storage device includes a plurality of nonvolatile memory devices each exchanging data by using a data strobe signal and a data signal, and a storage controller categorizing the plurality of nonvolatile memory devices into a plurality of groups and performing training in units of the plurality of groups. The storage controller performs data training on a first nonvolatile memory device selected in a first group of the plurality of groups and sets a delay of a data signal of a second nonvolatile memory device included in the first group by using a result value of the data training for the first nonvolatile memory device.

Abstract: A data training method of a storage device, which includes a storage controller and a nonvolatile memory device, includes transmitting a read training command to the nonvolatile memory device, receiving a first training pattern output from the nonvolatile memory device in response to the read training command, receiving a second training pattern output from the nonvolatile memory device in response to the read training command, comparing the received first training pattern and the received second training pattern with a reference pattern, and determining a read timing offset of the storage controller depending on the comparison result.

Abstract: Disclosed is a storage device. The storage device includes a nonvolatile memory device that receives write data based on a data strobe signal and a data signal and outputs read data based on the data strobe signal and the data signal, and a controller that performs a training operation for training the nonvolatile memory device to align the data signal and the data strobe signal. The controller detects a left edge of a window of the data signal for the training operation. The controller determines a center of the window by using the detected left edge and unit interval length information of the data signal or determines a start point of a detection operation for detecting a right edge of the window by using the detected left edge and the unit interval length information.

Abstract: Disclosed is a storage device. The storage device includes a nonvolatile memory device that receives write data based on a data strobe signal and a data signal and outputs read data based on the data strobe signal and the data signal, and a controller that performs a training operation for training the nonvolatile memory device to align the data signal and the data strobe signal. The controller detects a left edge of a window of the data signal for the training operation. The controller determines a center of the window by using the detected left edge and unit interval length information of the data signal or determines a start point of a detection operation for detecting a right edge of the window by using the detected left edge and the unit interval length information.

Abstract: A storage device includes a plurality of nonvolatile memory devices each exchanging data by using a data strobe signal and a data signal, and a storage controller categorizing the plurality of nonvolatile memory devices into a plurality of groups and performing training in units of the plurality of groups. The storage controller performs data training on a first nonvolatile memory device selected in a first group of the plurality of groups and sets a delay of a data signal of a second nonvolatile memory device included in the first group by using a result value of the data training for the first nonvolatile memory device.

Abstract: A data training method of a storage device, which includes a storage controller and a nonvolatile memory device, includes transmitting a read training command to the nonvolatile memory device, receiving a first training pattern output from the nonvolatile memory device in response to the read training command, receiving a second training pattern output from the nonvolatile memory device in response to the read training command, comparing the received first training pattern and the received second training pattern with a reference pattern, and determining a read timing offset of the storage controller depending on the comparison result.