IBM DJSA-210 Hard Drive Specifications - Page 129
Number of heads in default translate mode, SET FEATURES subcommand is not required to spin-up
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Word Content Description 00 045AH 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
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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.
8010H
47
Model number in ASCII
Note1
27–46
Micro code version in ASCII
XXXX
23–26
Number of ECC bytes as currently selected via the set
feature command
*
00XXH
22
Buffer size in 512-byte increments
*
Note1
21
Controller type:
0003: dual ported, multiple sector buffer with look-
ahead read
*
0003H
20
Serial number in ASCII (0 = not specified)
XXXX
10–19
Reserved
*
0000H
09
Reserved
0
08
Reserved
0
07
Number of sectors per track in default translate mode
003FH
06
Reserved
*
0
05
Reserved
*
0
04
Number of heads in default translate mode
Note1
03
SET FEATURES subcommand is not required to spin-up and
IDENTIFY DEVICE response is complete
C837H
02
Number of cylinders in default translate mode
Note1
01
Reserved
0(=0)
1=hard sectored
1(=1)
*
1=identify data incomplete
2(=0)
1=not MFM encoded
3(=1)
*
1=head switch time > 15 us
4(=1)
*
1=spindle motor control option implemented
5(=0)
*
1=fixed drive
6(=1)
1=removable cartridge drive
7(=0)
1=disk transfer rate <= 5 Mbps
8(=0)
*
1=disk transfer rate > 5 Mbps but <= 10 Mbps
9(=0)
*
1=disk transfer rate > 10 Mbps
10(=1)
*
1=rotational speed tolerance > 0.5%
11(=0)
*
1=data strobe offset option available
12(=0)
*
1=track offset option available
13(=0)
*
1=format speed tolerance gap required
14(=0)
*
1=ATAPI device, 0=ATA device
15(=0)
Bit assignments
Drive
classification
045AH
00
Description
Content
Word
Note. The ' *' mark in the 'Content' field indicates the use of those parameters that are vendor specific.
Note1. See the Figure 79.
Figure 79. Identify device information (1 of 7)
Travelstar 32GH/30GT/20GN hard disk drive specifications
115