Transcend Information TS16GSDHC 6, TS4GSDHC 6, TS32GSDHC 6, TS8GSDHC 6 manual Taac, Nsac, Transpeed

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SDHC Card series

4~32GB High Capacity Secure Digital Card

CSD Register Structure

•TAAC

This field is fixed to 0Eh, which indicates 1 ms. The host should not use TAAC, NSAC, and R2W_FACTOR to calculate timeout and should uses fixed timeout values for read and write operations (See 4.6.2).

•NSAC

This field is fixed to 00h. NSAC should not be used to calculate time-out values.

•TRAN_SPEED

The following table defines the maximum data transfer rate per one data line - TRAN_SPEED:

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 Parameter Symbol Min Max Unit Remark ~32GB High Capacity Secure Digital Card Bus Signal Levels~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 OCR register ~32GB High Capacity Secure Digital Card Register InformationPNM CID RegisterMID OIDCSD Register PSNMDT CRCCSD Register Fields CSD Version CsdstructureTaac NsacTranspeed Writeblkmisalign CCCReadbllen ReadblpartialSectorsize WpgrpenableCsize EraseblkenFileformat CopyPermwriteprotect TmpwriteprotectDSR Register Optional RCA RegisterDatastataftererase SCR RegisterScrstructure SdspecSdbuswidths SdsecurityMechanical Dimension Sdhc Card series Sdhc Card series