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Device and method for controllintg proper execution in serial flash memory and corresponding chip

A memory and controller technology, applied in the direction of program control devices, static memory, memory systems, etc., can solve the problems of memory efficiency deterioration, large storage capacity, and large operating system size

Inactive Publication Date: 2004-08-04
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Specifically, because various applications and additional functions make the size of the operating system larger (for example, 16-32MB in the case of WinCE), the problem here is that in the main memory due to the slave serial flash memory The amount of memory capacity occupied by the boot code read becomes larger, resulting in deterioration of memory efficiency

Method used

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  • Device and method for controllintg proper execution in serial flash memory and corresponding chip
  • Device and method for controllintg proper execution in serial flash memory and corresponding chip
  • Device and method for controllintg proper execution in serial flash memory and corresponding chip

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Embodiment Construction

[0035] First, an apparatus and method for controlling XIP in a serial flash memory according to the present invention, and an embodiment of a flash memory chip using the same apparatus and method will be described in detail with reference to the accompanying drawings.

[0036] figure 2Means for controlling the XIP in the serial flash memory, and means for accessing the serial flash memory according to the present invention are shown.

[0037] like figure 2 As shown, the serial flash memory access device includes: the serial flash memory 100; a control command to write data; and a control device 500 (hereinafter referred to as "controller", "controller") for performing related operations by accessing the serial flash memory in response to a control command generated from the main control unit 300 control.

[0038] The serial flash memory 100 is a cell type serial flash memory. For example, NAND flash memory is a serial flash memory having 528 bytes including a data block ...

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Abstract

The invention is for controlling execute-in-place in a serial flash memory and a flash memory chip using the same, enabling a serial flash controller with predetermined amount of storage to access the serial flash, to read an entire page to which required data belong, and to transmit the desired data to a main control unit or to execute the data. The apparatus includes a cache module for accessing a designated memory address of the serial flash in response to a command received from a main control unit, and reading or writing data required by the main control unit; a serial flash controller with a boot loader for allowing system booting to be performed by reading boot codes written on the serial flash, and storing the boot codes in a buffer and immediately transmitting the boot codes to the main control unit when the main control unit requires the boot codes.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2003-0001449 filed in the Korean Patent Office on Jan. 9, 2003, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to an apparatus and method for controlling an execute-in-place (hereinafter referred to as "XIP") in a serial flash memory, and a flash memory chip using the same apparatus and method, in particular It relates to an apparatus and method for controlling XIP in a serial flash memory, and a flash memory chip using the same apparatus and method, wherein required data is passed through a hardware controller having a predetermined amount of storage capacity by Access serial flash memory for recovery or execution. Background technique [0003] In general, a flash memory is a non-volatile, writable memory that allows, like a ROM (Read Only Memory), to store recorded contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/00G06F9/445G06F12/08G11C16/02
CPCG06F12/0875G06F2212/2022G06F9/44573G06F9/4403G06F12/00
Inventor 林在敏朴赞益徐载侑
Owner SAMSUNG ELECTRONICS CO LTD
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