SanDisk SD25B-100, Product Manual

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FlashDrive Product Manual
FlashDrive Product Manual © 1999 SANDISK CORPORATION 43
6.1.5.15 Double Word Support
This field indicates this product will not support
double word transfers.
6.1.5.16 Capabilities
This field indicates this product will not support
DMA Data transfers but does support LBA mode.
6.1.5.17 PIO Data Transfer Cycle Timing Mode
This field defines the mode for PIO data transfer.
6.1.5.18 DMA Data Transfer Cycle Timing
Mode
This field states this product doesn’t support any
DMA data transfer mode.
6.1.5.19 Translation Parameters Valid
This field contains the value 0001h indicating
that words 54 to 58 are valid and reflect the
current number of cylinders, heads and sectors.
6.1.5.20 Current Number of Cylinders, Heads,
Sectors/Track
These fields contains the current number of user
addressable Cylinders, Heads, and Sectors/Track
in the current translation mode.
6.1.5.21 Current Capacity
This field contains the product of the current
cylinders times heads times sectors.
6.1.5.22 Multiple Sector Setting
This field contains a validity flag in the odd byte
and the current number of sectors that can be
transferred per interrupt for R/W Multiple in the
even byte. The odd byte is always 01H which
indicates that the even byte is always valid.
The even byte value depends on the value set by
the Set Multiple command. The even byte of this
word by default contains a 00H which indicates
that R/W Multiple commands are not valid. The
only other value returned by the FlashDrive in
the even byte is a 01H value which indicates that
1 sector per interrupt can be transferred in R/W
Multiple mode.
6.1.5.23 Total Sectors Addressable in LBA Mode
This field contains the number of sectors
addressable for the FlashDrive in LBA mode
only.