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Seagate U4 ST36421A User Manual

Page 33

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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

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