Hitachi IC25N040ATMR04-0 Specifications - Page 121

indicates the use of those parameters that are vendor specific., Note 1., See Table 79: Number

Page 121 highlights

Table 72: Identify device information. (Part 1 of 7) Word 00 01 02 03 04-05 06 07-09 10-19 20 21 22 23-26 27-46 47 Content 045AH (Note 1) xxxxH (Note 1) 0 003FH 0 XXXX 0003H (Note 1) 00XXH XXXX (Note 1) 8010H Description drive classibit assignments fication 15(=0) 1=ATAPI device, 0=ATA device * 14(=0) 1=format speed tolerance gap required * 13(=0) 1=track offset option available * 12(=0) 1=data strobe offset option available * 11(=0) 1=rotational speed tolerance > 0.5% * 10(=1) 1=disk transfer rate > 10 Mbps * 9(=0) 1=disk transfer rate > 5 Mbps but

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Travelstar 80GN Hard Disk Drive Specification
111
Table 72: Identify device information. (Part 1 of 7)
*
indicates the use of those parameters that are vendor specific.
Note 1.
See Table 79: “Number of cylinders/heads/sectors by model.” on page 118.
Word
Content
Description
00
045AH
drive classi-
fication
bit assignments
15(=0)
1=ATAPI device, 0=ATA device
*
14(=0)
1=format speed tolerance gap required
*
13(=0)
1=track offset option available
*
12(=0)
1=data strobe offset option available
*
11(=0)
1=rotational speed tolerance > 0.5%
*
10(=1)
1=disk transfer rate > 10 Mbps
*
9(=0)
1=disk transfer rate > 5 Mbps but <= 10 Mbps
*
8(=0)
1=disk transfer rate <= 5 Mbps
7(=0)
1=removable cartridge drive
6(=1)
1=fixed drive
*
5(=0)
1=spindle motor control option implemented
*
4(=1)
1=head switch time > 15 ms
*
3(=1)
1=not MFM encoded
2(=0)
1=identify data incomplete
*
1(=1)
1=hard sectored
0(=0)
Reserved
01
(Note 1)
Number of cylinders in default translate mode
02
xxxxH
Specific configuration
C837h
SET FEATURES subcommand is not required to spin-up
and IDENTIFY DEVICE response is complete
37C8h
SET FEATURES subcommand is required to spin-up and
IDENTIFY DEVICE response is complete
03
(Note 1)
Number of heads in default translate mode
04-05
0
* Reserved
06
003FH
Number of sectors per track in default translate mode
07-09
0
Reserved
10-19
XXXX
Serial number in ASCII (0 = not specified)
20
0003H
*
Controller type:
0003: dual ported, multiple sector buffer with look-ahead read
21
(Note 1)
* Buffer size in 512-byte increments
22
00XXH
*
Number of ECC bytes as currently selected via the set feature
command
23-26
XXXX
Micro code version in ASCII
27-46
(Note 1)
Model number in ASCII
47
8010H
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.