IBM DTCA-24090 Hard Drive Specifications - Page 115

=Security Mode Feature Set Supported

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Word 00 01 02 03 04 05 06 07 08 09 10 19 20 | 21 22 23 26 27 46 47 48 49 50 51 52 Content Description 045AH * * * * * Note.1 0 * 0010H 0 * 0 * 003FH 0000H * 0000H * 0000H * XXXX 0003H * 03A8H * 00XXH XXXX Note.2 0010H 0000H 0F00H * 0000H 0200H 0200H 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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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 <= 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(=0): 1=soft sectored
*
1(=1): 1=hard sectored
0(=0): Reserved
01
Note.1
Number of cylinders in default translate mode
02
0
*
Number of removable cylinders
03
0010H
Number of heads in default translate mode
04
0
*
Reserved
05
0
*
Reserved
06
003FH
Number of sectors per track in default translate mode
07
0000H
*
Number of bytes of sector gap
08
0000H
*
Number of bytes in sync field
09
0000H
*
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
03A8H
*
Buffer size in 512 byte increments (=468KB)
22
00XXH
Number of ECC bytes as currently selected via
the set features command
23 26
XXXX
Microcode version in ASCII
27 46
Note.2
Model number in ASCII
47
0010H
Maximum number of sectors that can be transferred per
interrupt on Read and Write Multiple commands
48
0000H
Capable of double word I/O, '0000'= cannot perform
49
0F00H
Capabilities, bit assignments:
15 14(=0) Reserved
13(=0) Standby timer value are vendor specific
12(=0) Reserved
11(=1) IORDY Supported
10(=1) IORDY can be disabled
9(=1) 1=LBA Supported
8(=1) 1=DMA Supported
*
7
0(=0) Reserved
50
0000H
15(=0) 1=Security Mode Feature Set Supported
14
8(=0) Maximum number of passwords supported
51
0200H
PIO data transfer cycle timing mode
52
0200H
DMA data transfer cycle timing mode
Refer Word 62 and 63
Figure 64. Identify device information
Command Descriptions
107