Table 59. Device Configuration Overlay Data Structure; Table 60. Dco Error Information Definition - Hitachi 7K100 - Travelstar - Hard Drive Specifications

Table 59: Device Configuration Overlay Data structure
Word
0 0001h
1 Multiword DMA modes supported
15-3
2
1
0
2 Ultra DMA modes supported
15-6
5
4
3
2
1
0
3-6 Maximum LBA address
7 Command set/feature set supported
15-9
8
7
6
5
4
3
2
1
8-254 Reserved
255 Integrity word
15-8
7-0
Note: Bits 7–0 of this word contain the value A5h. Bits 15–8 of this word contain the data structure checksum. The data struc-
ture checksum is the two's complement of the sum of all byte in words 0through 254 and the byte consisting of bits 7–0 of
word 255. Each byte is added with unsigned arithmetic, and overflow is ignored. The sum of all bytes is zero when the check-
sum is correct.
Table 60: DCO error information definition.
LBA High invalid word location
LBA Mid invalid bit location (bits 7:0)
Sector count error reason code & description (bits 15:8)
01h
02h
03h
04h
05h
06h
07h
08h
FFh
Content
Data Structure revision
Reserved
1 = Multiword DMA mode 2 and below are supported
1 = Multiword DMA mode 1 and below are supported
1 = Multiword DMA mode 0 is supported
Reserved
1 = Ultra DMA mode 5 and below are supported
1 = Ultra DMA mode 4 and below are supported
1 = Ultra DMA mode 3 and below are supported
1 = Ultra DMA mode 2 and below are supported
1 = Ultra DMA mode 1 and below are supported
1 = Ultra DMA mode 0 is supported
Reserved
1 = 48-bit Addressing feature set supported
1 = Host Protected Area feature set supported
1 = Automatic acoustic management supported
Reserved
1 = Power-Up in Standby feature set supported
1 = Security feature set supported
1 = SMART self-test supported
1 = SMART self-test supported
See note below
Checksum
Signature (A5h)
DCO feature is frozen
Device is now Security Locked mode
Device's feature is already modified with DCO
User attempt to disable any feature enabled
Device is now SET MAX Locked or Frozen mode
Protected area is now established
DCO is not supported
Subcommand code is invalid
other reason
Travelstar 7K100 Hard Disk Drive Specification
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