SanDisk CompactFlash Product Manual page 4

Table of Contents
3.6. Common Memory Transfer Function ...........................................................................................3-23
3.6.1. Common Memory Function................................................................................................3-23
3.7. True IDE Mode I/O Transfer Function.........................................................................................3-24
3.7.1. True IDE Mode I/O Function .............................................................................................3-24
4. ATA Drive Register Set Definition and Protocol ...........................................................................................4-1
4.1. I/O Primary and Secondary Address Configurations.....................................................................4-1
4.2. Contiguous I/O Mapped Addressing ............................................................................................4-2
4.3. Memory Mapped Addressing .......................................................................................................4-3
4.4. True IDE Mode Addressing .........................................................................................................4-4
4.5. ATA Registers .............................................................................................................................4-4
4.5.1. Data Register (Address-1F0[170];Offset 0, 8, 9) ..............................................................4-4
4.5.2. Error Register (Address-1F1[171]; Offset 1, 0Dh Read Only) ..........................................4-5
4.5.3. Feature Register (Address-1F1[171]; Offset 1, 0Dh Write Only .......................................4-5
4.5.4. Sector Count Register (Address-1F2[172]; Offset 2) ........................................................4-5
4.5.5. Sector Number (LBA 7-0) Register (Address-1F3[173]; Offset 3) ....................................4-6
4.5.6. Cylinder Low (LBA 15-8) Register (Address-1F4[174]; Offset 4) ....................................4-6
4.5.7. Cylinder High (LBA 23-16) Register (Address-1F5[175]; Offset 5) .................................4-6
4.5.8. Drive/Head (LBA 27-24) Register (Address 1F6[176]; Offset 6).........................................4-6
4.5.9. Status & Alternate Status Registers (Address 1F7[177]&3F6[376]; Offsets 7 & Eh) ...........4-7
4.5.10. Device Control Register (Address-3F6[376]; Offset Eh).................................................4-7
4.5.11. Card (Drive) Address Register (Address 3F7[377]; Offset Fh) ..........................................4-8
5. ATA Command Description .........................................................................................................................5-1
5.1. ATA Command Set .....................................................................................................................5-1
5.1.1. Check Power Mode-98H, E5H .........................................................................................5-2
5.1.2. Execute Drive Diagnostic-90H.........................................................................................5-3
5.1.3. Erase Sector(s)-C0H ........................................................................................................5-3
5.1.4. Format Track-50H...........................................................................................................5-4
5.1.5. Identify Drive-ECH .........................................................................................................5-4
5.1.5.1. Word 0: General Configuration ........................................................................5-6
5.1.5.2. Word 1: Default Number of Cylinders ..............................................................5-6
5.1.5.3. Word 3: Default Number of Heads ....................................................................5-6
5.1.5.4. Word 4: Number of Unformatted Bytes per Track .............................................5-6
5.1.5.5. Word 5: Number of Unformatted Bytes per Sector ............................................5-6
5.1.5.6. Word 6: Default Number of Sectors per Track ..................................................5-6
5.1.5.7. Words 7-8: Number of Sectors per Card ...........................................................5-6
5.1.5.8. Words 10-19: Memory Card Serial Number......................................................5-6
5.1.5.9. Word 20: Buffer Type .......................................................................................5-6
5.1.5.10. Word 21: Buffer Size ......................................................................................5-7
5.1.5.11. Word 22: ECC Count .....................................................................................5-7
5.1.5.12. Words 23-26: Firmware Revision ...................................................................5-7
5.1.5.13. Words 27-46: Model Number .........................................................................5-7
5.1.5.14. Word 47: Read/Write Multiple Sector Count ...................................................5-7
5.1.5.15. Word 48: Double Word Support......................................................................5-7
5.1.5.16. Word 49: Capabilities .....................................................................................5-7
5.1.5.17. Word 51: PIO Data Transfer Cycle Timing Mode ...........................................5-7
5.1.5.18. Word 52: Single Word DMA Data Transfer Cycle Timing Mode....................5-7
5.1.5.19. Word 53: Translation Parameters Valid ..........................................................5-8
5.1.5.20. Words 54-56: Current Number of Cylinders, Heads, Sectors/Track .................5-8
5.1.5.21. Words 57- 58: Current Capacity .....................................................................5-8
5.1.5.22. Word 59: Multiple Sector Setting....................................................................5-8
5.1.5.23. Words 60-61: Total Sectors Addressable in LBA Mode...................................5-8
5.1.5.24. Word 64: Advanced PIO Transfer Modes Supported .......................................5-8
5.1.5.25. Word 67: Minimum PIO Transfer Cycle Time Without Flow Control .............5-8
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CompactFlash Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION