Table of Contents
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Word
Content
00
045AH
01
(Note 1)
02
C837H
03
(Note 1)
04
0
05
0
06
003FH
07
0
08
0
09
0000H
10-19
XXXX
20
0003H
21
(Note 1)
22
00XXH
23-26
XXXX
(Note 1)
27-46
47
8010H
* in Content field indicates the use of those parameters that are vendor
specific.
Note 1. See Figure 93.
Figure 86. Identify device information. (Part 1 of 7)
Description
drive
classification
15(=0)
*
14(=0)
*
13(=0)
*
12(=0)
*
11(=0)
*
10(=1)
*
9(=0)
*
8(=0)
7(=0)
6(=1)
*
5(=0)
*
4(=1)
*
3(=1)
2(=0)
*
1(=1)
0(=0)
Number of cylinders in default translate mode
SET FEATURES subcommand is not required to spin-up and
IDENTIFY DEVICE response is complete
Number of heads in default translate mode
*
Reserved
*
Reserved
Number of sectors per track in default translate mode
Reserved
Reserved
*
Reserved
Serial number in ASCII (0 = not specified)
*
Controller type:
0003: dual ported, multiple sector buffer with look-
ahead read
*
Buffer size in 512-byte increments
*
Number of ECC bytes as currently selected via the set
feature command
Micro code version in ASCII
Model number in ASCII
Maximum number of sectors that can be transferred per
interrupt on Read and Write Multiple commands
15-8:
(=80h)
7-0: Maximum number of sectors that can be transferred
per interrupt.
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
bit assignments
1=ATAPI device, 0=ATA device
1=format speed tolerance gap required
1=track offset option available
1=data strobe offset option available
1=rotational speed tolerance > 0.5%
1=disk transfer rate > 10 Mbps
1=disk transfer rate > 5 Mbps but <= 10 Mbps
1=disk transfer rate <= 5 Mbps
1=removable cartridge drive
1=fixed drive
1=spindle motor control option
implemented
1=head switch time > 15 µs
1=not MFM encoded
1=identify data incomplete
1=hard sectored
Reserved
123
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