Electronic device including memory device and training method
AssigneeSamsung Electronics Co., Ltd.
InventorKYUMIN PARK
Life of this patent
Estimating the term…
Abstract
An electronic device includes a memory device receiving a power supply voltage, a data strobe signal, and a data signal, and a system-on-chip that exchanges data with the memory device using the data strobe signal and the data signal. The system-on-chip performs write training that measures a magnitude of a delay of the data strobe signal due to variation in the level of the power supply voltage and adjusts a delay of the data signal using a result of the write training.
Claims21
An electronic device comprising:
- a system-on-chip (SoC) that generates a data strobe signal and a data signal;
- and
- a memory device that receives a power supply voltage and exchanges data with the SoC in response to the data strobe signal and the data signal,
- wherein the SoC performs write training that measures a magnitude of a delay of the data strobe signal due to variation in a level of the power supply voltage, and that adjusts a delay of the data signal using a result of the write training.
A training method for an electronic device including a system-on-chip (SoC) and a memory device, the method comprising:
- providing a data signal and a data strobe signal from the SoC to the memory device;
- setting a level of a power supply voltage provided to the memory device to a normal level to generate a normal power supply voltage;
- performing a first training mode to align the data signal with the data strobe signal under a condition that the normal power supply voltage is applied to the memory device;
- setting the level of the power supply voltage to a dropped level lower than the normal level to generate a dropped power supply voltage;
- performing a second training mode to align the data signal and the data strobe signal under a condition that the dropped power supply voltage is applied to the memory device;
- and
- calculating a delay for the data strobe signal due to variation in the level of the power supply voltage using a result of the first training mode and a result of the second training mode.
An electronic device comprising:
- a memory device driven in response to a power supply voltage;
- a host configured to transfer a data signal and a data strobe signal to the memory device;
- and
- a power management integrated circuit (PMIC) configured to provide the power supply voltage to the memory device under control of the host,
- wherein the host performs software training that measures a delay of the data strobe signal due to variation in the level of the power supply voltage within the memory device.
21-26. (canceled)
Dependencies are inferred from the claim text.