T
S
6
4
G
S
S
D
1
T
S
6
4
G
S
S
D
1
T
S
6
4
G
S
S
D
1
SMART Command Set
SMART Command Set
D0h
Read Data
D1h
Read Attribute Threshold
D2h
Enable/Disable Autosave
D3h
Save Attribute Values
D4h
Execute OFF-LINE Immediate
1. If reserved size is below the Threshold, the status can be read from Cylinder register by Return Status command
(DAh).
SMART Data Structure
BYTE
0-1
2-114
115-116
117-361
362
363
364-365
366
367
368-369
370
371
372
373
374
375-385
386-395
396-397
398-399
400
511
F=the content of the byte is fixed and does not change.
V=the content of the byte is variable and may change depending on the state of the device or
the commands executed by the device.
X=the content of the byte is vendor specific and may be fixed or variable.
R=the content of the byte is reserved and shall be zero.
* 4 Byte value : [MSB] [2] [1] [LSB]
Transcend Information Inc.
0
-
M
0
-
M
0
-
M
SMART Feature Register Values
F / V
X
Revision code
X
Vendor specific
V
Power cycle count (116=MSB, 115=LSB)
X
Vendor specific
V
Off line data collection status
X
Self-test execution status byte
V
Total time in seconds to complete off-line data collection activity
X
Vendor specific
F
Off-line data collection capability
F
SMART capability
Error logging capability
F
7-1 Reserved
0 1=Device error logging supported
X
Vendor specific
F
Short self-test routine recommended polling time (in minutes)
F
Extended self-test routine recommended polling time (in minutes)
F
Conveyance self-test routine recommended polling time (in minutes)
R
Reserved
F
Firmware Version/Date Code
F
Number of initial invalid block(396=MSB, 397=LSB)
V
Number of run time bad block(398=MSB, 399=LSB)
V
Number of spare block
V
Data structure checksum
D5h
Read Log
D6h
Write Log
D8h
Enable SMART Operations
D9h
Disable SMART Operations
DAh
Return Status
Decription
32
1.0" Solid State Disk
V1.6