Word 21: Buffer Size; Word 22: Ecc Count; Words 23-26: Firmware Revision; Words 27-46: Model Number - SanDisk CompactFlash Product Manual

ATA Command Description

5.1.5.10. Word 21: Buffer Size

This field defines the buffer capacity of 2 sectors or 1 kilobyte of SRAM.

5.1.5.11. Word 22: ECC Count

This field defines the number of ECC bytes used on each sector in the Read and Write Long commands.

5.1.5.12. Words 23-26: Firmware Revision

This field contains the revision of the firmware for this product.

5.1.5.13. Words 27-46: Model Number

This field contains the model number for this product and is left justified and padded with spaces (20h).

5.1.5.14. Word 47: Read/Write Multiple Sector Count

This field contains the maximum number of sectors that can be read or written per interrupt using the Read Multiple
or Write Multiple commands.

5.1.5.15. Word 48: Double Word Support

This field indicates this product will not support double word transfers.

5.1.5.16. Word 49: Capabilities

This field indicates this product will not support DMA Data transfers but does support LBA mode.

5.1.5.17. Word 51: PIO Data Transfer Cycle Timing Mode

This field defines the mode for PIO data transfer.

5.1.5.18. Word 52: Single Word DMA Data Transfer Cycle Timing Mode

This field states this product does not support any Single Word DMA data transfer mode.
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CompactFlash Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION 5-7