The Paging Mechanism and MMC Module in XS128 Flash

Jin Wu; Yi Huai Wang

doi:10.4028/www.scientific.net/AMR.403-408.2683

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408The Paging Mechanism and MMC Module in XS128 Flash

The Paging Mechanism and MMC Module in XS128 Flash

Abstract:

In this paper we analyze the paging mechanism of XS128 Flash memory in detail, elaborate the functions and theory of Memory Mapping Control (MMC) module which integrated in S12XS serials MCU. We also introduce some registers which involved in MMC to realize the paging mechanism. Besides, we put forward the concepts of Local address, Logical address and Global address in XS128 Flash module, and give the basic theory on the conversion of these addresses.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

2683-2687

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.2683

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Online since:

November 2011

Authors:

Jin Wu, Yi Huai Wang

Keywords:

Global Address, Local Address, Logical Address, MMC, Paging Mechanism

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References

[1] Freescale: MC9S12XS256 Reference Manual, Rev. 1.09, (2009)

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[2] WANG Yi-huai, LIU Xiao-sheng, Embedded systems-design and application on HCS12 MCUs, Beihang, University Press, 2008.

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[3] Freescale, "MC9S12UF32 System on a chip Guide," Rev, 1, 2004.

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[4] Freescale,"MC9S12DG128/DJ128/DT128 Device User Guide" Rev, 1, 2002. Fig.4 The conversion of logical address and global address Fig.5 The relation between the local address and global address in XS128

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