5.3 Host Commands
C141-E057-01EN 5-59
At command completion (I-O registers setting contents)
1F7H
(ST)
Status information
1F6H
(DH)
×××DV
xx
1F5H
(CH)
1F4H
(CL)
1F3H
(SN)
1F2H
(SC)
1F1H
(ER)
Key-failure prediction status (C2h-2Ch)
Key-failure prediction status (4Fh-F4h)
xx
xx
Error information
The attribute value information is 512-byte data; the format of this data is shown
below. The host can access this data using the SMART Read Attribute Values
subcommand (FR register = D0h). The insurance failure threshold value data is
512-byte data; the format of this data is shown below. The host can access this
data using the SMART Read Attribute Thresholds subcommand (FR register =
D1h).
Table 5.8 Format of device attribute value data
Byte
Item
00
01
Data format version number
02
Attribute 1
Attribute ID
03
04
Status flag
05
Current attribute value
06
Attribute value for worst case so far
07 to 0C
Raw attribute value
0D
Reserved
0E to 169
Attribute 2 to
attribute 30
(The format of each attribute value is the same
as that of bytes 02 to 0D.)
16A
Off-line data collection status
16B
Number of off-line data collection segments
16C, 16D
Time required for next segments [sec].
16E
Current segment pointer
16F
Off-line data collection capability
170
171
Failure prediction capability flag
172 to 181
Reserved
182 to 1FE
Vendor unique
1FF
Check sum
Off-line data
collection