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(47) WRITE LOG EXT (X’3F’) [Optional command (Customize)]
• Description
This command writes data to the general-purpose log of a device. The general-
purpose log includes the extended SMART comprehensive error log, extended
self-test log, SMART selective self-test log, and other logs. However, some of
these logs are read-only logs. The types of logs available depend on the customize
operation. For information on the DRQ, INTRQ, and BSY protocols related to the
transfer of data, see Section 5.4.1.
When command is issued (I/O register setting values)
1F7H (CM) 0 0 1 1 1 1 1 1
1F6H (DH) x x x DV xx
1F5H (CH) P
1F5H (CH) C
1F4H (CL) P
1F4H (CL) C
1F3H (SN) P
1F3H (SN) C
1F2H (SC) P
1F2H (SC) C
1F1H (FR) P
1F1H (FR) C
xx
xx
Sector offset (15-8)
Sector offset (7-0)
xx
Log address
Sector count (15-8)
Sector count (7-0)
xx
xx
C: Current
P: Previous
When command is completed (read data in I/O register)
1F7
H
(ST) Status information
1F6
H
(DH) x x x DV xx
1F5
H
(CH) 1
1F5
H
(CH) 0
1F4
H
(CL) 1
1F4
H
(CL) 0
1F3
H
(SN) 1
1F3
H
(SN) 0
1F2
H
(SC) 1
1F2
H
(SC) 0
1F1
H
(ER)
xx
xx
xx
xx
xx
xx
xx
xx
xx
0: HOB=0
1: HOB=1
5-122 C141-E258