Figure 92. Identify Device Information (2 Of 6) - IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive Specifications

Word Content
50 400xH
51 0200H
52 0200H
53 0007H
54 xxxxH
55 xxxxH
56 xxxxH
57-58 xxxxH
59 0xxxH
60-61 xxxxH
62 0000H
63 xx07H
64 0003H
65 0078H
66 0078H
67 00F0H
68 0078H
69-74 0000H

Figure 92. Identify Device Information (2 of 6)

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
(=1) equal to or greater than 5 minutes
PIO data transfer cycle timing mode
Ÿ
DMA data transfer cycle timing mode
Refer Word 62 and 63
Validity flag of the word
15–3(=0) Reserved
2(=1) 1=Word 88 are Valid
1(=1) 1=Word 64-70 are Valid
0(=1) 1=Word 54=58 are Valid
Number of current cylinders
Number of current heads
Number of current sectors per track
Current capacity in sectors
Word 57 specifies the low word of the capacity
Current Multiple setting.
15–9 (=0) Reserved
8 1= Multiple Sector Setting is Valid
7–0 xxh = Current setting for number of sectors
Total Number of User Addressable Sectors
Word 60 specifies the low word of the number
Multiword DMA Transfer Capability
15-8 Multiword DMA transfer mode active
7-0 (=7) Multiword DMA transfer modes supported
(support mode 0.1 and 2)
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
Minimum Multiword DMA Transfer Cycle Time Per Word
15-0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
Manufacturer's Recommended Multiword DMA Transfer
Cycle Time
15-0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
Minimum PIO Transfer Cycle Time Without Flow Control
15–0 (=F0) Cycle time in nanoseconds (240ns,8.3MB/s)
Minimum PIO Transfer Cycle Time Without Flow Control
15–0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
Reserved
Deskstar 40GV & 75GXP hard disk drive specifications
Description
Bit assignments:
117