Deskstar 7K160 Hard Disk Drive Specification
155
Word Content
Description
50 4000H
Capabilities, bit assignments:
15-14(=01) word 50 is valid
13- 1 (=0) Reserved
0 Minimum value of Standby timer
(=0) 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- 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 0xxxH
Current Multiple setting. bit assignments
15- 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
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 00F0H
Minimum PIO Transfer Cycle Time Without Flow Control
15-0(=F0) Cycle time in nanoseconds (240ns, 8.3MB/s)
68 0078H
Minimum PIO Transfer Cycle Time With IORDY Flow Control
15- 0(=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
69-74 0000H
Reserved
75 001FH
Queue depth
15-5(=0) Reserved
4-0(=1F) Maximum queued depth - 1
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