IBM IC25N040ATCS04 - Travelstar 40 GB Hard Drive, Specifications

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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- 3(=0) Reserved
2 1=Multiword DMA mode 2 is supported
1 1=Multiword DMA mode 1 is supported
0 1=Multiword DMA mode 0 is supported
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
0007H 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
4000H 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
* in Content field indicates the use of those parameters that are vendor
specific.
Note 1. See Figure 93.
Figure 87. Identify device information. (Part 2 of 7)
Travelstar 60GH & 40GN hard disk drive specifications
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