Identify Drive Command - Seagate MARATHON 1680 Product Manual

Marathon 2250 and Marathon 1680 Product Manual
The following commands contain drive-specific features that may not be
described in the Draft Proposed ATA-3 Standard .

3.2.2 Identify Drive command

The Identify Drive command (command code EC
about the drive to the host following power-up. The data is organized as
a single 512-byte block of data, the contents of which 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
Section 1 of this manual for default parameter settings for the Marathon
2250 and the Marathon 1680.
Word
Configuration information:
0
Bit 6: fixed drive
Number of fixed cylinders (default logical
1 emulation): 4,360 (ST92255AG);
3,256 (ST91685AG)
2 ATA-reserved
Number of heads (default logical emulation):
3
16
4 ATA-obsolete
5 ATA-obsolete
Number of sectors per track
6
(default logical emulation): 63
7–9 Not used by this drive
Serial number:
10–19
(20 ASCII characters, 0000
20 ATA-obsolete
21 ATA-obsolete
22 Number of ECC bytes available (16)
Firmware revision (8 ASCII character string):
23–26 xx = ROM version, ss = RAM version,
tt= RAM version
continued on following page
) transfers information
H
Description
= none)
H
29
Contents
0040
H
1108
H
(ST92255AG)
0CB8
H
(ST91685AG)
0000
H
0010
H
0000
H
0000
H
003F
H
0000
H
ASCII
0000
H
0000
H
0010
H
xx.ss.tt