摘要:
A data storage device comprises a plurality of memory devices and a memory controller. The memory controller exchanges data with the memory devices via a plurality of channels. The memory controller decodes an external command to generate a driving power mode and accesses the memory devices according to the driving power mode.
摘要:
A data storage device includes a data storage medium and a controller. The controller is configured to control at least one of a reading, erasing, and writing operation on the data storage medium. The controller includes an interface and a power management unit. The interface is configured to exchange at least one of a command, an address, and data with a host. The power management unit is configured to change the power mode of the interface into a power saving mode if: a command input from the host is not executed, data transfer is not actually executed in executing the command, or status information is not reported after the command is executed.
摘要:
A write operation is performed in a memory system by encoding, in the memory system, original data transmitted from a host system, according to a first type of host command, to produce an encoding result, transmitting information about the encoding result to the host system after the encoding, and writing the encoding result or the original data into a nonvolatile memory device, according to a second host command, wherein the second host command is transmitted from the host system based on the information about the encoding result.
摘要:
A cyclic redundancy check (CRC) management method performed in a serial advanced technology attachment (SATA) interface and a data storage device using the CRC management method. A host interface connected to the SATA interface performs CRC computation on transmitted data to generate a first CRC code, determines whether a host interface block error or a data integrity error occurs, or the status of a data storage device needs to be reported to the host interface, generates a second CRC code, which is different from the first CRC code, according to the determination result. If a frame including the transmitted data and the second CRC code is transmitted to a host, the host performs CRC computation on a data FIS in the transmitted data to expect the first CRC code. Since the CRC code in the transmitted data is the second CRC code, the host recognizes that the transmitted data is wrong and provides an error notification to the data storage device. Accordingly, the host can be informed of the host interface block error, the data integrity error, or the status error of the data storage device, not a protocol error in the SATA interface.
摘要:
An all-in-one data storage device includes a secondary memory providing read data in response to a read command, an internal hardware filter that filters the first read data according to filtering condition data in order to output filtered data, a primary memory, a host controller, and a memory controller that stores the filtered data in the primary memory and thereafter communicates the filtered data to the host controller.
摘要:
An error correction device is provided. The error correction device includes a code storage unit where a plurality of error correction codes are stored, a first error correction unit to correct a data error detected from input data by using one of a plurality of error correction codes and to output correction data, a buffer to store the correction data, and a second error correction unit to generate a new correction code from the correction data, to compare another of a plurality of error correction codes with the new correction code and to output a comparison result.
摘要:
A data storage device includes a data storage medium and a controller. The controller is configured to control at least one of a reading, erasing, and writing operation on the data storage medium. The controller includes an interface and a power management unit. The interface is configured to exchange at least one of a command, an address, and data with a host. The power management unit is configured to change the power mode of the interface into a power saving mode if: a command input from the host is not executed, data transfer is not actually executed in executing the command, or status information is not reported after the command is executed.
摘要:
A method of controlling a power saving mode used in a serial advanced technology attachment (SATA) interface. The method of controlling a power saving mode used in a SATA interface for data transmission between a transmitter and a receiver includes: requesting the receiver to enter one of a plurality of power saving modes in a SATA protocol using the transmitter; and selecting one of the power saving modes using the receiver. In the method of controlling a power saving mode in a SATA interface, since a power saving mode can be selected independently of a power saving mode requested by a transmitter, a system can operate in a power saving mode that is suitable for the required properties of the system in accordance with a SATA protocol. Furthermore, the properties of the system required by a user can be realized by selecting a user-defined power saving mode.
摘要:
A storage device includes a storage medium and a controller configured to control the storage medium. The controller includes an interface unit configured to interface with a host, a processing unit connected to the interface unit via a first signal line and configured to process a direct load operation and a direct store operation between the host and the controller, and at least one memory connected to the interface unit via a second signal line. The at least one memory is configured to temporarily store data read from the storage medium or data received from the host, and is configured to be directly accessed by the host.
摘要:
A write operation is performed in a memory system by encoding, in the memory system, original data transmitted from a host system, according to a first type of host command, to produce an encoding result, transmitting information about the encoding result to the host system after the encoding, and writing the encoding result or the original data into a nonvolatile memory device, according to a second host command, wherein the second host command is transmitted from the host system based on the information about the encoding result.