Nand Flash memory array based storage control apparatus

Abstract

The present invention discloses a Nand Flash memory array based storage control apparatus. The Nand Flash memory array based storage control apparatus comprises: a Nand Flash memory array, a storage controller, a user application logic layer, user logic, an infrastructure, and a state acquisition unit. The Nand Flash memory array obtains an operation instruction; a physical layer obtains an operation time sequence; a media interface layer obtains a parsed reconstruction data stream; a memory command layer obtains a decomposed Nand Flash operation data stream and a command interface time sequence; a storage link layer obtains data fames in accordance with the command interface time sequence and a decoded command interface time sequence; the user layer obtains a register configuration command, clock and reset signals, a work state, the operation instruction data stream; a memory maintenance and configuration unit obtains parsed register configuration command; the infrastructure obtains the clock and reset signals; the state acquisition unit obtains the work state; the user application logic layer obtains a data format and an operation format required by a memory control interface; and the state acquisition unit obtains a user logic operation command.

Description

technical field [0001] The invention belongs to the technical field of high-speed data recording, and in particular relates to a storage control device based on a Nand Flash solid-state memory array, which is used for functional verification and performance testing using a field programmable gate array (Field Programable Gate Array, FPGA) as a verification test platform , provided for use in the form of IP cores. Background technique [0002] High-speed data recording technology is one of the key technologies in many fields at home and abroad. This high-speed data recording technology includes detection, investigation, monitoring, equipment testing and field debugging. The original high-speed digital signal data flow in the engineering environment needs to be completely recorded in order to Fault diagnosis, scene review and data archiving work will be carried out later, and the actual application environment often has large temperature differences, dusty or strong vibrations...

AI Technical Summary

Problems solved by technology

[0003] Currently commercially available solid state disks (Solid State Disk, SSD) are products of this digital acquisition and playback device. However, solid state disk products have small capacity, low speed, and poor integration, which cannot meet the storage and playback requirements of high-speed real-time signal processing systems. There are many technical difficulties in the development of special storage devices based on semiconductor solid-state storage: (1) input and output synchronization problems caused by operating multiple semiconductor memories at the same time; Blocks will affect data storage, manage bad blocks without affecting read and write performance, and prolong the service life of storage devices; (3) The inherent bit error defects of Nand structure memory greatly reduce data reliability. Use error control coding to reduce or even eliminate the impact of bit errors; (4) In order to prolong the trouble-free time of storage devices, it is crucial and difficult to control the load balancing of all storage semiconductors on the device; (5) In dedicated In the device, the speed requirements for storage and reading are particularly important, so a number of technologies are required to ensure high-speed operation

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