IBM IC35L040AVVN07-0 Hard Drive Specifications - Page 132

Minimum Multiword DMA Transfer Cycle Time Per Word

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Word 50 51 52 53 54 55 56 57-58 59 60-61 62 63 64 65 66 67 68 69-74 Content 4000H 0200H 0200H ! 0007H XXXXH XXXXH XXXXH XXXXH 0XXXH XXXXH 0000H XX07H 0003H 0078H 0078H 00F0H 0078H 0000H Description 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 DMA data transfer cycle timing mode. Refer to 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. Bit assignments: 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 With IORDY Flow Control 15-0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s) Reserved Figure 101. Identify Device Information (part 2 of 6) Deskstar 120GXP hard disk drive specifications 118

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Reserved
0000H
69-74
Minimum PIO Transfer Cycle Time With IORDY Flow
Control
15–0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
0078H
68
Minimum PIO Transfer Cycle Time Without Flow Control
15–0 (=F0) Cycle time in nanoseconds (240ns, 8.3MB/s)
00F0H
67
Manufacturer’s Recommended Multiword DMA Transfer
Cycle Time
15-0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
0078H
66
Minimum Multiword DMA Transfer Cycle Time Per Word
15-0 (=78) Cycle time in nanoseconds (120ns, 16.6MB/s)
0078H
65
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
0003H
64
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)
XX07H
63
0000H
62
Total Number of User Addressable Sectors. Word 60
specifies the low word of the number
XXXXH
60-61
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
0XXXH
59
Current capacity in sectors. Word 57 specifies the
low word of the capacity
XXXXH
57-58
Number of current sectors per track
XXXXH
56
Number of current heads
XXXXH
55
Number of current cylinders
XXXXH
54
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
0007H
53
DMA data transfer cycle timing mode. Refer to Word
62 and 63
!
0200H
52
PIO data transfer cycle timing mode
0200H
51
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
4000H
50
Description
Content
Word
Figure 101. Identify Device Information (part 2 of 6)
Deskstar 120GXP hard disk drive specifications
118