摘要:
A storage device realizing an improvement in rewrite endurance of a nonvolatile memory and an improvement in data transfer rate of write and read operations is provided including a nonvolatile memory; a volatile memory for storing file management information of the nonvolatile memory; a controller for controlling the nonvolatile memory and the volatile memory; and a power supply maintaining unit for supplying power to the nonvolatile memory, the volatile memory, or the controller upon power shutdown. The controller reads the file management information in the nonvolatile memory upon power-on and writes the same in the volatile memory, and read and write operations are performed based on the file management information in the volatile memory, and the file management information in the volatile memory is written in the nonvolatile memory upon power shutdown.
摘要:
A storage device realizing an improvement in rewrite endurance of a nonvolatile memory and an improvement in data transfer rate of write and read operations is provided including a nonvolatile memory; a volatile memory for storing file management information of the nonvolatile memory; a controller for controlling the nonvolatile memory and the volatile memory; and a power supply maintaining unit for supplying power to the nonvolatile memory, the volatile memory, or the controller upon power shutdown. The controller reads the file management information in the nonvolatile memory upon power-on and writes the same in the volatile memory, and read and write operations are performed based on the file management information in the volatile memory, and the file management information in the volatile memory is written in the nonvolatile memory upon power shutdown.
摘要:
A storage device includes a drive selection section (1), a hard disk drive (HDD) (2), and a non-volatile memory drive (3). When an instruction such as a data I/O instruction is issued from a host such as a CPU (5) and an ATA controller (6) to the hard disk drive (HDD) (2), the drive selection section (1) receives the address value. If the address value is included in the address space predefined, the non-volatile memory drive (3) is made to execute the instruction. Otherwise, the hard disk drive (HDD) (2) is made to execute the instruction.
摘要:
A storage device realizing an improvement in rewrite endurance of a nonvolatile memory and an improvement in data transfer rate of write and read is provided including a nonvolatile memory 101; a volatile memory 106 for storing file management information of the nonvolatile memory 101; a controller 103 for controlling the nonvolatile memory 101 and the volatile memory 106; and a power supply maintaining unit 105 for supplying power to the nonvolatile memory 101, the volatile memory 106, or the controller 103 upon power shutdown. The controller 103 reads the file management information in the nonvolatile memory 101 upon power-on and writes the same in the volatile memory 106, and read and write operations are performed based on the file management information in the volatile memory 106, and the file management information in the volatile memory 106 is written in the nonvolatile memory 101 upon power shutdown.
摘要:
To realize low-profile electronic apparatus (a memory module and a memory card) of a large storage size by mounting tape carrier packages (TCPs) with a memory chip encapsulated onto a wiring board in high density. To be more specific, a TCP is composed of an insulating tape, leads formed on one side thereof, a potting resin with a semiconductor chip encapsulated, and a pair of support leads arranged on two opposite short sides. The pair of support leads function to hold the TCP at a constant tilt angle relative to the mounting surface of the wiring board. By varying the length vertical to the mounting surface, the TCP can be mounted to a desired tilt angle.
摘要:
A storage device includes a drive selection section (1), a hard disk drive (HDD) (2), and a non-volatile memory drive (3). When an instruction such as a data I/O instruction is issued from a host such as a CPU (5) and an ATA controller (6) to the hard disk drive (HDD) (2), the drive selection section (1) receives the address value. If the address value is included in the address space predefined, the non-volatile memory drive (3) is made to execute the instruction. Otherwise, the hard disk drive (HDD) (2) is made to execute the instruction.
摘要:
A storage device realizing an improvement in rewrite endurance of a nonvolatile memory and an improvement in data transfer rate of write and read operations is provided including a nonvolatile memory; a volatile memory for storing file management information of the nonvolatile memory; a controller for controlling the nonvolatile memory and the volatile memory; and a power supply maintaining unit for supplying power to the nonvolatile memory, the volatile memory, or the controller upon power shutdown. The controller reads the file management information in the nonvolatile memory upon power-on and writes the same in the volatile memory, and read and write operations are performed based on the file management information in the volatile memory, and the file management information in the volatile memory is written in the nonvolatile memory upon power shutdown.