參數(shù)資料
型號(hào): HB28L064MM3
廠商: Renesas Technology Corp.
英文描述: MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte
中文描述: 多媒體32 MByte/64 MByte/128 MByte/256 MByte/512字節(jié)
文件頁數(shù): 22/91頁
文件大?。?/td> 526K
代理商: HB28L064MM3
HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Rev.0.02, Sep.15.2004, page 22 of 89
ECC
Defines the ECC code that was used for storing data on the card. This field is used by the host (or
application) to decode the user data. The following table defines the field format.
ECC
ECC
ECC type
Maximum number of correctable bits
0
None (default)
None
1
2
3
BCH (542,512)
3
Reserved
The content provider or customer defines which kind of error correction may be used to protect the
contents of the MultiMediaCard. This value is programmable.
CRC7
The CRC7 contains the check sum for the CSD content. The check sum is computed according to chapter
“Cyclic Redundancy Check (CRC)”.
The user has to recalculate a new CRC7 after defining a new CSD.
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