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MC28U064NMYC-0QC00 数据表(PDF) 29 Page - Samsung semiconductor |
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MC28U064NMYC-0QC00 数据表(HTML) 29 Page - Samsung semiconductor |
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29 / 66 page  MultiMediaCard TM 29 shown in table “File_Formats” COPY Defines if the contents are an original (= 0) or a copy (= 1). The COPY bit is a one time programmable bit, being set by the customer. PERM_WRITE_PROTECT Permanently protects the whole card content against overwriting or erasing (all write and erase commands for this card is a permanently disabled). This parameter is one-time programmable by the customer. The default value is ‘0’ (not protected). TMP_WRITE_PROTECT Temporarily protects the whole card content from being overwritten or erased (all write and erase commands for this card are temporarily disabled). This parameter is programmable by the customer. The default value is ‘0’ (not protected). FILE_FORMAT Indicates the file format on the card. This field is read-only for ROM. The following formats are defined. FILE_FORMAT _GRP FILE_FOR MAT Type 0 0 Hard disk-like file system with partition table 0 1 DOS FAT (floppy-like) with boot sector only (no partition table) 0 2 Universal File Format 0 3 Others/Unknown 1 0,1,2,3 Reserved 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 Type Maximum number of correctable bits 0 None (default) None 1 BCH (542,512) 3 2-3 0,1,2,3 - The content provider or customer defines which kind of error correction may be used to protect the contents of 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)”. |
类似零件编号 - MC28U064NMYC-0QC00 |
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类似说明 - MC28U064NMYC-0QC00 |
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