Word 0: General Configuration; Word 1: Default Number Of Cylinders; Word 3: Default Number Of Heads; Word 4: Number Of Unformatted Bytes Per Track - SanDisk CompactFlash Product Manual

ATA Command Description

5.1.5.1. Word 0: General Configuration

This field informs the host that this is a non -magnetic, hard sectored, removable storage device with a transfer rate
greater than 10 mb/sec and is not MFM encoded. CompactFlash products report 848AH in compliance with the CFA
specification.

5.1.5.2. Word 1: Default Number of Cylinders

This field contains the number of translated cylinders in the default translation mode. This value will be the same as
the number of cylinders.

5.1.5.3. Word 3: Default Number of Heads

This field contains the number of translated heads in the default translation mode.

5.1.5.4. Word 4: Number of Unformatted Bytes per Track

This field contains the number of unformatted bytes per translated track in the default translation mode.

5.1.5.5. Word 5: Number of Unformatted Bytes per Sector

This field contains the number of unformatted bytes per sector in the default translation mode.

5.1.5.6. Word 6: Default Number of Sectors per Track

This field contains the number of sectors per track in the default translation mode.

5.1.5.7. Words 7-8: Number of Sectors per Card

This field contains the number of sectors per CompactFlash Memory Card. This double word value is also the first
invalid address in LBA translation mode.

5.1.5.8. Words 10-19: Memory Card Serial Number

The contents of this field are right justified and padded with spaces (20h).

5.1.5.9. Word 20: Buffer Type

This field defines the buffer capability with the 0002h meaning a dual ported multi -sector buffer capable of
simultaneous data transfers to or from the host and the CompactFlash Memory Card.
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5-6 CompactFlash Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION