Transcend Information TS8GSDHC 6, TS4GSDHC 6 Copy, Permwriteprotect, Tmpwriteprotect, Fileformat

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SDHC Card series

4~32GB High Capacity Secure Digital Card

COPY

Defines if the contents is original (= ‘0’) or has been copied (=’1’). The COPY bit for OTP and MTPdevices, sold to end consumers, is set to ‘1’ which identifies the card contents as a copy. The COPY bit is an one time programmable bit.

PERM_WRITE_PROTECT

Permanently protects the whole card content against overwriting or erasing (all write and erase commands for this card are permanently disabled). The default value is ‘0’, i.e. not permanently write 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 bit can be set and reset. The default value is ‘0’, i.e. not write protected.

FILE_FORMAT

This field is set to 0. Host should not use this field.

CRC

The CRC field carries the check sum for the CSD contents.

The checksum has to be recalculated by the host for any CSD modification. The default corresponds to the initial CSD contents.

The following table lists the correspondence between the CSD entries and the command classes. A ‘+’ entry indicates that the CSD field affects the commands of the related command class.

Transcend Information Inc.

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Contents Placement Features ~32GB High Capacity Secure Digital Card DescriptionPin Definition ~32GB High Capacity Secure Digital Card Architecture Power Supply Voltage Bus Signal Line LoadCurrent Consumption ~32GB High Capacity Secure Digital Card ~32GB High Capacity Secure Digital Card Bus Signal Levels Parameter Symbol Min Max Unit Remark~32GB High Capacity Secure Digital Card Bus Timing Output Delay time during Data Transfer Mode MHz Ccard ≤ 10 pF, 1 card Clock low time Output Hold time Sdhc Card series ~32GB High Capacity Secure Digital Card Register Information OCR registerOID CID RegisterMID PNMCRC PSNMDT CSD RegisterCsdstructure CSD Register Fields CSD VersionTaac NsacTranspeed Readblpartial CCCReadbllen WriteblkmisalignEraseblken WpgrpenableCsize SectorsizeTmpwriteprotect CopyPermwriteprotect FileformatRCA Register DSR Register OptionalSdspec SCR RegisterScrstructure DatastataftereraseSdsecurity SdbuswidthsMechanical Dimension Sdhc Card series Sdhc Card series