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U4 Family Product Manual, Rev. D 25
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:
ST32112A = 4,192
ST34311A = 8,944
ST36421A = 13,330
ST38421A = 16,368
1060
H
(ST32112A)
22F0
H
(ST34311A)
3412
H
(ST36421A)
3FF0
H
(ST38421A)
2 ATA-reserved
0000
H
3 Number of logical heads:
ST32112A = 16
ST34311A = 15
ST36421A = 15
ST38421A = 16
10
H
(ST32112A)
(ST38421A)
0F
H
(ST34311A)
(ST36421A)
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
0200
H
22 Obsolete
0004
H
23–26 Firmware revision (8 ASCII character
string, padded with blanks to end of
string)
x.xx