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Toshiba Corporation Digital Media Network Company
Page 52 of 153
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11.7.3.1 Smart command
This command is used with the Smart commands to select subcommands.
11.7.4 Sector Count Register
- CS0 DA2-DA0 : 2 Read / Write
11.7.4.1 Disk Access command
The sector count register determines the number of sectors to be read or written for Read, Write, and Verify
commands. A 0 in the sector count register specifies a 256 sector transfer. After normal completion of a
command, the content shall be 0.
During a multi-sector operation, the sector count is decremented and the sector number is incremented. If
an error should occur during multi-sector operation, this command shows the number of remaining sectors
in order to avoid duplicated transfer.
11.7.4.2 Initialize Device Parameters command
This register determines number of sectors per track.
11.7.4.3 Power Control command
This register returns a value in accordance with the operation mode (idle mode or stand-by mode).
11.7.4.4 Set Features Command
If features register for this command is 03h, this register sets the data transfer mode.