Storage device communicating with specific pattern and operating method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-Sung Yu, Kui-Yon Mun, Youngwook Kim
Life of this patent
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Abstract
A storage device includes a memory device configured to store data and a memory controller connected to the memory device through a data strobe line and a plurality of data lines. The storage device adds a predetermined specific pattern in front of data and processes data input following the specific pattern as valid data during a read or write operation. The specific pattern is provided in alignment with a data strobe signal (DQS) latency cycle. The memory controller detects a specific pattern input from the memory device during a read operation and processes data input following the specific pattern as valid data when the detected specific pattern matches an internally stored specific pattern.
Claims20
A storage device comprising:
- a memory device configured to store data;
- and
- a memory controller connected to the memory device through a data strobe line and a plurality of data lines, and configured to communicate the data through the plurality of data lines and to communicate a data strobe signal through the data strobe line,
- wherein a predetermined specific pattern is added to the data in front of the data, and
- wherein at least one of the memory device and the memory controller is configured to compare the predetermined specific pattern to an internally stored specific pattern to provide a comparison result, and to process the data sequentially following the predetermined specific pattern as valid data during a read operation or write operation based on the comparison result.
An operating method of a storage device including a memory device configured to store data, and a memory controller connected to the memory device through a data strobe line and a plurality of data lines, the operating method comprising:
- generating a predetermined specific pattern;
- providing the predetermined specific pattern through the plurality of data lines in alignment with a dummy data strobe signal provided through the data strobe line;
- and
- providing data through the plurality of data lines in alignment with a data strobe signal provided through the data strobe line, sequentially after providing the predetermined specific pattern,
- wherein the data sequentially after the predetermined specific pattern is processed as valid data when at least a portion of the predetermined specific pattern is determined to match a corresponding portion of a previously established pattern.
A memory device comprising:
- a memory cell array that stores data;
- and
- a data input/output (I/O) circuit configured to
- receive a predetermined specific pattern via a plurality of data lines in alignment with a dummy data strobe signal received via a data strobe signal line,
- receive the data via the plurality of data lines in alignment with a data strobe signal received via the data strobe signal line, the received data sequentially following the received predetermined specific pattern,
- identify a pattern match when at least a portion of the received predetermined specific pattern is determined to match a corresponding portion of an internally stored specific pattern, and
- process the received data as valid data when the pattern match is identified.
Dependencies are inferred from the claim text.