IBM IC25N005ATDA04, Технические характеристики

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Multiword DMA Transfer Capability
15-11(=0) Reserved
10 1 = Multiword DMA mode 2 is selected
9 1 = Multiword DMA mode 1 is selected
8 1 = Multiword DMA mode 0 is selected
7- 0(=7) Multiword DMA transfer modes supported
(support mode 0, 1 and 2)
XX07H 63
Reserved * 0000H 62
Total Number of User Addressable Sectors
Word 60 specifies the low word of the number
Note 1 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 is Valid
1(=1) 1 = Word 64-70 are Valid
0(=1) 1 = Word 54-58 are Valid
XXX7H 53
DMA data transfer cycle timing mode
Refer Word 62 and 63
*
0200H 52
PIO data transfer cycle timing mode 0200H 51
Capabilities
15(=0) 0 = the contents of word 50 are valid
14(=1) 1 = the contents of word 50 are valid
13- 1(=0) Reserved
0(=0) 1 = the device has a minimum Standby timer
value that is device specific
0000H 50
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) Reserved
8(=0) Reserved
7–0(=0) Reserved
*
0F00H 49
Capable of double word I/O, ‘0000’= cannot perform * 0000H 48
Description Content Word
Figure 86. Identify device information (2 of 7)
Note. The ' * ' mark in the 'Content' field indicates the use of those parameters that are vendor specific.
Note 1. See Figure 87 on page 133.
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
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