User manual TRANSCEND TS256MSDM80 QUICK INSTRUCTION GUIDE

[. . . ] If the block erase count is bigger than WEARCNT, then swapped the static-block and over-count-block. After actual test, global wear leveling successfully even the erase count of every block; hence, it can extend the life expectancy of Flash product. 2. StaticDataRefresh Technology ­ Keeping Data Healthy There are many variants that would disturb the charge inside a Flash cell. These variants can be: time, read operations, undesired charge, heat, etc; each variant would create a charge loss, and the contents shift in their charge levels slightly. [. . . ] Reading the Status register does clear a pending interrupt while reading the Auxiliary Status register does not. The status bits are described as follows: Bit 7 (BUSY): the busy bit is set when the CompactFlash Storage Card has access to the command buffer and registers and the host is locked out from accessing the command register and buffer. During the data transfer of DMA commands, the Card shall not assert DMARQ unless either the BUSY bit, the DRQ bit, or both are set to one. Bit 6 (RDY): RDY indicates whether the device is capable of performing CompactFlash Storage Card operations. This bit is cleared at power up and remains cleared until the CompactFlash Storage Card is ready to accept a command. Bit 4 (DSC): This bit is set when the CompactFlash Storage Card is ready. Bit 3 (DRQ): The Data Request is set when the CompactFlash Storage Card requires that information be transferred either to or from the host through the Data register. During the data transfer of DMA commands, the Card shall not assert DMARQ unless either the BUSY bit, the DRQ bit, or both are set to one. Bit 2 (CORR): This bit is set when a Correctable data error has been encountered and the data has been corrected. Bit 0 (ERR): This bit is set when the previous command has ended in some type of error. The bits in the Error register contain additional information describing the error. Bit 0 (-nDS0): this bit is 0 when the drive 0 is active and selected. Transcend Information Inc. 55 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 CF-ATA Command Set Transcend Information Inc. 56 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Transcend Information Inc. 57 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Request Sense - 03h The extended error code is returned to the host in the Error Register. Write Sector(s) without Erase - 38h Transcend Information Inc. 58 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Erase Sector(s) - C0h This command is used to pre-erase and condition data sectors in advance of a Write without Erase or Write Multiple without Erase command. There is no data transfer associated with this command but a Write Fault error status can occur. Write Multiple without Erase ­ CDh Translate Sector - 87h Transcend Information Inc. 59 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Translate Sector Information Transcend Information Inc. 60 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Set Features ­ EFh Feature Supported Feature 03h 81h 82h Operation Set transfer mode based on calue in Sector Count register Disable 8 bit data transfer Disable Write Cache Execute Drive Diagnostic - 90h When the diagnostic command is issued in a PCMCIA configuration mode, this command runs only on the CompactFlash Storage Card that is addressed by the Drive/Head register. This is because PCMCIA card interface does not allows for direct inter-drive communication (such as the ATA PDIAG and DASP signals). When the diagnostic command is issued in the True IDE Mode, the Drive bit is ignored and the diagnostic command is executed by both the Master and the Slave with the Master responding with status for both devices. Diagnostic Codes are returned in the Error Register at the end of the command. Transcend Information Inc. 61 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Transcend Information Inc. 62 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Flush Cache ­ E7h This command causes the card to complete writing data from its cache. The card returns status with RDY=1 and DSC=1 after the data in the write cache buffer is written to the media. If the Compact Flash Storage Card does not support the Flush Cache command, the Compact Flash Storage Card shall return command aborted. Identify Device ­ ECh The Identify Device command enables the host to receive parameter information from the CompactFlash Storage Card. The parameter words in the buffer have the arrangement and meanings defined in Table as below. Hosts should not depend on Obsolete words in Identify Device containing 0. Table 47 specifies each field in the data returned by the Identify Device Command. In Table as below, X indicates a numeric nibble value specific to the card and aaaa indicates an ASCII string specific to the particular drive. Read DMA ­ C8h Read Multiple - C4h Transcend Information Inc. 63 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Read Sector(s) - 20h or 21h Read Verify Sector(s) - 40h or 41h Set Multiple Mode - C6h Write DMA ­ CAh Transcend Information Inc. 64 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Write Multiple Command - C5h Write Sector(s) - 30h or 31h NOP - 00h This command always fails with the CompactFlash Storage Card returning command aborted. Transcend Information Inc. 65 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Read Buffer - E4h The Read Buffer command enables the host to read the current contents of the CompactFlash Storage Card's sector buffer. This command has the same protocol as the Read Sector(s) command. Write Buffer - E8h Check Power Mode - 98h or E5h If the CompactFlash Storage Card is in, going to, or recovering from the sleep mode, the CompactFlash Storage Transcend Information Inc. 66 V1. 2 Transcend IIndustriiall CF Card Transcend ndustr a CF Card TS128M~16GCF200II TS128M~16GCF200 Card sets BSY, sets the Sector Count Register to 00h, clears BSY and generates an interrupt. [. . . ] Bit 13: -XP If set to 1, indicates that the CompactFlash Storage Card does not have Power Level 1 commands. If set to 0, indicates that the CompactFlash Storage Card has Power Level 1 commands Bit 12: -XE If set to 1, indicates that Power Level 1 commands are disabled. Bit 0-11: Maximum current This field contains the CompactFlash Storage Card's maximum current in mA. Word 162: Key Management Schemes Supported Bit 0: CPRM support If set to 1, the device supports CPRM Scheme (Content Protection for Recordable Media) If set to 0, the device does not support CPRM. [. . . ]