US 2011/0218949 A1 · METHOD OF OPTIMIZING DATA TRAINING IN SYSTEM INCLUDING MEMORY DEVICES

Abstract

In one embodiment, a method of performing data training in a system including a memory controller and at least a first memory device including a group of memory banks is disclosed. The method includes providing a plurality of enabling states for the group of memory banks, wherein each enabling state is different and for each enabling state a set of the memory banks of the group is enabled and any remaining of the memory banks of the group are not enabled. The method further includes performing a first data training procedure that includes a series of first data training operations for the first memory device, each data training operation being performed for a different one of the plurality of enabling states, generating a noise profile based on the series of first data training operations, statistically analyzing the noise profile to select a reference enabling state of the group of memory banks, and performing a second data training procedure for the first memory device using the reference enabling state. As a result, the operating speed and reliability of the system including the memory device may be improved.

Claims21

Dependent claims

A method of performing data training in a system including a memory controller and at least a first memory device including a group of memory banks, the method comprising:

providing a plurality of enabling states for the group of memory banks, wherein each enabling state is different and for each enabling state a set of the memory banks of the group is enabled and any remaining of the memory banks of the group are not enabled;
performing a first data training procedure that includes a series of first data training operations for the first memory device, each data training operation being performed for a different one of the plurality of enabling states;
generating a noise profile based on the series of first data training operations;
statistically analyzing the noise profile to select a reference enabling state of the group of memory banks;
and
performing a second data training procedure for the first memory device using the reference enabling state.

3 more elements

A system, comprising:

at least a first memory device including a group of memory units;
and
a memory controller including a training controller configured to:
provide a plurality of enabling states for the group of memory units, wherein each enabling state is different and for each enabling state a set of the memory units of the group is enabled and any remaining of the memory units of the group are not enabled;
perform a first data training procedure including a series of first data training operations for the first memory device, each data training operation being performed for a different one of the plurality of enabling states;
generate a noise profile based on the series of first data training operations;
statistically analyze the noise profile to select a reference enabling state of the group of memory units;
and
perform a second data training procedure for the first memory device using the reference enabling state.

6 more elements

A method of performing data training in a system including a memory controller and at least a first storage device including a group of memory units, the method comprising:

providing a plurality of enabling states for the group of memory units, wherein each enabling state is different and for each enabling state a set of the memory units of the group is enabled and any remaining of the memory units of the group are not enabled;
performing a first data training procedure that includes a series of first data training operations for the first storage device, each data training operation being performed for a different one of the plurality of enabling states;
generating a noise profile based on the series of first data training operations;
and
using the noise profile to compensate for skew in the storage device.

2 more elements

Dependencies are inferred from the claim text.

Method of optimizing data training in system including memory devices

Life of this patent

Method of optimizing data training in system including memory devices

Life of this patent

Abstract

Claims21