5K250 (SATA) OEM Specification
Page 87 of 171
Word Content
Description
00
045xH
Drive classification, 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 device
6 (=1): 1=fixed device
*
5 (=0): 1=spindle motor control option implemented
*
4 (=1): 1=head switch time > 15 us
*
3 (=1): 1=not MFM encoded
2 (=x): 1=Identify data incomplete
*
1 (=1): 1=hard sectored
0 (=0): Reserved
01
Note.2
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 incomplete
03
Note.2
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.2
*
Buffer size in number of sectors
22 00xxH
*
Obsolete
23-26
XXXX
Microcode version in ASCII
27-46
Note.2
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.
Note.1 The ‘*’ mark in ‘Content’ field indicates the use of those parameters that are vendor specific.
Note.2 See following table “Table 63 Number of cylinders/heads/sectors by models for
HTS5425XXK9SA00 / HTS5425XXK9A300” on Page 96
Table 54 Identify device information