Transcend Information TS4GSDHC6V manual Taac, Nsac, Transpeed

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HD Video Card Series

4GB~16GB SDHC6 HD Video 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 4GB~16GB SDHC6 HD Video Card Description Features PlacementPin Definition 4GB~16GB SDHC6 HD Video Card Architecture Power Supply Voltage Bus Signal Line LoadCurrent Consumption 4GB~16GB SDHC6 HD Video Card Parameter Symbol Min Max Unit Remark 4GB~16GB SDHC6 HD Video Card Bus Signal Levels4GB~16GB SDHC6 HD Video Card Bus Timing Output Delay time during Data Transfer Mode 4GB~16GB SDHC6 HD Video Card Bus Timing High Speed Mode Output Hold time Reliability and Durability OCR register 4GB~16GB SDHC6 HD Video Card Register Information PNM CID Register MID 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 HD Video Card Series HD Video Card Series