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Word
Content
Description
9 (=1)
LBA supported
8 (=1)
DMA supported
7-0 (=0)
Reserved
50
4000H
Capabilities, bit assignments:
15-14 (=01)
Word 50 is valid
13-1 (=0)
Reserved
0 (=0)
Minimum value of Standby timer less than 5 minutes
51
0200H
PIO data transfer cycle timing mode
52
0200H
* DMA data transfer cycle timing mode (Refer Word 62 and 63)
53
0007H
Validity flag of the Word
15-8 (=0)
Free-fall Control Sensitivity
00h = Vendor’s recommended setting
7-3 (=0)
Reserved
2 (=1)
1=Word 88 is Valid
1 (=1)
1=Word 64-70 are Valid
0 (=1)
1=Word 54-58 are Valid
54
xxxxH
Number of current cylinders
55
xxxxH
Number of current heads
56
xxxxH
Number of current sectors per track
57-58
xxxxH
Current capacity in sectors
Word 57 specifies the low word of the capacity
59
xxxxH
Sanitize capabilities and Current Multiple setting. Bit assignments
15 (=0)
The BLOCK ERASE EXT command is not supported
14 (=1)
The OVERWRITE EXT command is supported
13 (=0 or 1)
The CRYPTO SCRAMBLE EXT command is supported
12 (=1)
The Sanitize Device Feature Set is supported
11 (=1)
The commands allowed during a sanitize operation
10 (=0)
The Sanitize AntiFreeze Lock command is not supported
9 (=0)
Reserved
8
1= Multiple Sector Setting is Valid
7-0
xxh = Current setting for number of sectors
60-61
xxxxH
Total Number of User Addressable Sectors
Word 60 specifies the low word of the number
FFFFFFFh=The 48-bit native max address is greater than 268,435,455
62
0000H
Reserved
63
xx07H
Multiword DMA Transfer Capability
15- 8
Multi word DMA transfer mode active
7-0 (=7)
Multi word DMA transfer modes supported
(support mode 0,1 and 2)
64
0003H
Flow Control PIO Transfer Modes Supported
15-8 (=0)
Reserved
7-0 (=3)
Advanced PIO Transfer Modes Supported
‘11’ = PIO Mode 3 and 4 Supported
65
0078H
Minimum Multiword DMA Transfer Cycle Time Per Word
15-0 (=78)
Cycle time in nanoseconds (120ns, 16.6MB/s)
66
0078H
Manufacturer’s Recommended Multiword DMA Transfer Cycle Time
15-0 (=78)
Cycle time in nanoseconds (120ns, 16.6MB/s)
67
0078H
Minimum PIO Transfer Cycle Time Without Flow Control
15-0 (=78)
Cycle time in nanoseconds (120ns, 16.6MB/s)
68
0078H
Minimum PIO Transfer Cycle Time With IORDY Flow Control
15-0 (=78)
Cycle time in nanoseconds (120ns, 16.6MB/s)
69
0D08H
Additional Supported
13 (=0)
Long Physical Sector Alignment Err Reporting Control is not supported
12 (=0)
Reserved
165
Hard Disk Drive Specification