Product manual

Medalist 13640, 10230, 6422 and 3210 Product Manual, Rev. B 25
The following commands contain drive-specific features that may not be
described in the
Draft ATA-4 Standard .
3.2.2 Identify Drive command
The Identify Drive command (command code EC
H
) transfers information
about the drive to the host following power up. The data is organized as
a single 512-byte block of data whose contents are shown in the table
below. All reserved bits or words should be set to zero. Parameters listed
with an “x” are drive-specific or vary with the state of the drive. See drive
specifications in Section 1 of this manual for default parameter settings.
Note.
If the alternate capacity jumper is installed on these drives, the
drive capacity is reduced in word 1 to 4,092 cylinders.
Word Description Value
0
Configuration information:
•
Bit 15: 0 = ATA; 1 = ATAPI
•
Bit 7: removable media
•
Bit 6: removable controller
•
Bit 0: reserved
0C5A
H
1 Number of logical cylinders:
16,383 (ST313640A)
16,383 (ST310230A)
13,228 (ST36422A)
6,296 (ST33210A)
3FFF
H
(ST313640A)
3FFF
H
(ST310230A)
33AC
H
(ST36422A)
1898
H
(ST33210A)
2 ATA-reserved
0000
H
3 Number of logical heads:
16 (ST313640A, ST310230A,
(ST33210A)
15 (ST36422A)
0010
H
(ST313640A)
(ST310230A
(ST33210A)
000F
H
(ST36422A)
4 Retired
0000
H
5 Retired
0000
H
6 Number of logical sectors per logical
track: 63
003F
H
7–9 Retired
0000
H