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32 Barracuda 5400.1 Product Manual, Rev. G
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
2 ATA-reserved C837
H
3 Number of logical heads 16
4 Retired 0000
H
5 Retired 0000
H
6 Number of logical sectors per logical
track: 63
003F
H
7–9 Retired 0000
H
10–19 Serial number: (20 ASCII characters,
0000
H
= none)
ASCII
20 Retired 0000
H
21 Retired 1000
H
22 Obsolete 0004
H
23–26 Firmware revision (8 ASCII character
string, padded with blanks to end of
string)
x.xx
27–46 Drive model number: (40 ASCII charac-
ters, padded with blanks to end of string)
ST340015ACE
47 (Bits 7–0) Maximum sectors per interrupt
on Read multiple and Write multiple (32)
8010
H
48 Reserved 0000
H
49 Standard Standby timer, IORDY sup-
ported and may be disabled
2F00
H
50 ATA-reserved 0000
H
51 PIO data-transfer cycle timing mode 0200
H
52 Retired 0200
H
53 Words 54–58, 64–70 and 88 are valid 0007
H