TS2G~16GCFX500
CFast Card
Description
Features
Transcend CFast cards are designed to satisfy high
•
RoHS compliant
performance requirements using a SATA 3Gb/s
•
CFast Specification Version 1.0 Compliant
interface. As a removable device, it is easier to plug and
•
Power Supply: 3.3V±5%
remove
as
•
Operating Temperature: 0oC to 70oC
thin-clients or industrial PCs. Complaint with CFast 1.0
•
Storage Temperature: -40oC to 85oC
standard, CFast is your best choice as an embedded
•
Humidity (Non condensation): 0% to 95%
SATA storage solution."
•
Built-in 8-bit/512Byte ECC (Error Correction Code)
in
space-limited
applications;
such
.
functionality ensures highly reliable of data transfer.
•
Placement
Global wear-leveling algorithm eliminate excessive write
operation and extends product life.
•
Suppot StaticDataRefresh & EarlyRetirement
technology to monitor error bit level and react before
data is corrupted.
•
Support S.M.A.R.T (Self-defined)
•
Support Security Command
•
Fully compatible with devices and OS that support the
SATA 3Gb/s standard
•
Non-volatile SLC Flash Memory for outstanding data
retention
•
Durability of Connector: 10,000 times
Dimensions
Side
Millimeters
Inches
A
42.8
1.685
B
36.4
1.433
C
3.3
0.13
D
0.6
0.02
Transcend Information Inc.
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V0.5
TS2G~16GCFX500
CFast Card
Specifications
Physical Specification
Form Factor
CFast
Storage Capacities
2GB~16 GB
Dimensions (mm)
Length
42.8 ± 0.1
Width
36.4 ± 0.15
Height
3.3 ± 0.1
Input Voltage
3.3V ± 5%
Weight
TBD
Connector
CFAST connector
Environmental Specifications
Operating Temperature
0 to 70 ℃
Storage Temperature
- 40 ℃ to 85 ℃
Humidity
Operating
0% to 95% (Non-condensing)
Non-Operating
0% to 95% (Non-condensing)
Regulations
Compliance
CE, FCC and BSMI
Performance
Model P/N
Read
Write
Random Read
Random Write
TS2GCFX500
56 MB/s
27MB/s
50 MB/s
8 MB/s
TS4GCFX500
56 MB/s
49MB/s
50 MB/s
12 MB/s
TS8GCFX500
102 MB/s
88MB/s
83MB/s
17 MB/s
TS16GCFX500
108 MB/s
91MB/s
89 MB/s
18 MB/s
®
Note: 25 ℃, test on ASUS P4S800-MX, 1GB RAM, Windows XP Version 2002 SP2, benchmark utility HDBENCH
(version 3.4006), copied file 1GB.
Transcend Information Inc.
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V0.5
TS2G~16GCFX500
CFast Card
Actual Capacity
Model P/N
User Max. LBA
Cylinder
Head
Sector
TS2GCFX500
3,865,680
3,835
16
63
TS4GCFX500
7,732,368/
7,671
16
63
TS8GCFX500
15,465,344
15,343
16
63
TS16GCFX500
30,932,992
16,383
15
63
Power Requirements
3.3V ± 5%
Input Voltage
Mode
Power Consumption
Max. (mA)
Write(peak)
352
Read(peak)
371
Idle(peak)
141
SHOCK & Vibration Test
Condition
Mechanical Shock Test
Vibration Test
Transcend Information Inc.
Standard
1500G, 0.5ms, 3 axis
IEC 60068-2-27
20G (Peak-to-Peak)
20Hz to 2000Hz (Frequency)
IEC 60068-2-6
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V0.5
TS2G~16GCFX500
CFast Card
Package Dimensions
Below figure illustrates the Transcend CFastTM. All dimensions are in mm.
Transcend Information Inc.
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V0.5
TS2G~16GCFX500
CFast Card
Pin Assignments
Pin No.
Pin Name
7-pin Signal Segment
S1
S2
S3
S4
S5
GND
A+
AGND
B-
S6
S7
B+
GND
17-pin Power Segment
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
CDI
GND
NC
NC
NC
NC
GND
NC
PC9
PC10
PC11
PC12
PC13
PC14
PC15
PC16
NC
NC
NC
NC
3.3V
3.3V
GND
GND
PC17
CDO
Pin Layout
Transcend Information Inc.
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V0.5
TS2G~16GCFX500
CFast Card
Block Diagram
CFASTTM Interface
SATA SSD CTL
Flash
Transcend Information Inc.
Flash
Flash
Flash
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TS2G~16GCFX500
CFast Card
Reliability
Wear-Leveling algorithm
The controller supports static/dynamic wear leveling. When the host writes data, the controller will find and use the block
with the lowest erase count among the free blocks. This is known as dynamic wear leveling. When the free blocks' erase
count is higher than a threshold value plus data blocks', it will activate the static wear leveling, replacing the not so
frequently used user blocks with the high erase count free blocks.
ECC algorithm
Using 8bit BCH Error Correction Code with each channel, the controller can correct 8 random bits per 512 byte data
sector for SLC NAND flash. The hardware executes parity generation and error detection/correction features.
StaticDataRefresh Technology
Normally, ECC engine corrections are taken place without affecting the host normal operations. As time passes by, the
number of error bits accumulated in the read transaction exceeds the correcting capability of the ECC engine, resulting
in corrupted data being sent to the host. To prevent this, the controller monitors the error bit levels at each read
operation; when it reaches the preset threshold value, the controller automatically performs data refresh to “restore” the
correct charge levels in the cell. This implementation practically restores the data to its original, error-free state, and
hence, lengthening the life of the data.
EarlyRetirement Technology
The StaticDataRefresh feature functions well when the cells in a block are still healthy. As the block ages over time, it
cannot reliably store charge anymore, EarlyRetirement enters the scene. EarlyRetirement works by moving the static
data to another block (a health block) before the previously used block becomes completely incapable of holding
charges for data. When the charge loss error level exceeds another threshold value (higher from that for
StaticDataRefresh), the controller automatically moves its data to another block. In addition, the original block is then
marked as a bad block, which prevents its further use, and thus the block enters the state of “EarlyRetirement.”
Note that, through this process, the incorrect data are detected and effectively corrected by the ECC engine, thus the
data in the new block is stored error-free.
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
CFastTM Interface
Out of bank signaling
There shall be three Out Of Band (OOB) signals used/detected by the Phy: COMRESET, COMINIT, and COMWAKE.
COMINIT, COMRESET and COMWAKE OOB signaling shall be achieved by transmission of either a burst of four Gen1
ALIGNP primitives or a burst composed of four Gen1 Dwords with each Dword composed of four D24.3 characters, each
burst having a duration of 160 UIOOB. Each burst is followed by idle periods (at common-mode levels), having durations
as depicted in Figure 4 and Table 2.
Figure 4 : OOB signals
Table 2 : OOB signal times
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
COMRESET
COMRESET always originates from the host controller, and forces a hardware reset in the device. It is indicated by
transmitting bursts of data separated by an idle bus condition. The OOB COMRESET signal shall consist of no less than
six data bursts, including inter-burst temporal spacing. The COMRESET signal shall be:
1) Sustained/continued uninterrupted as long as the system hard reset is asserted, or
2) Started during the system hardware reset and ended some time after the negation of system hardware reset, or
3) Transmitted immediately following the negation of the system hardware reset signal.
The host controller shall ignore any signal received from the device from the assertion of the hardware reset signal until
the COMRESET signal is transmitted. Each burst shall be 160 Gen1 UI’s long (106.7 ns) and each inter-burst idle state
shall be 480 Gen1 UI’s long (320 ns). A COMRESET detector looks for four consecutive bursts with 320 ns spacing
(nominal). Any spacing less than 175 ns or greater than 525 ns shall invalidate the COMRESET detector output. The
COMRESET interface signal to the Phy layer shall initiate the Reset sequence shown in Figure 5 below. The interface
shall be held inactive for at least 525 ns after the last burst to ensure far-end detector detects the negation properly.
Figure 5: Comreset sequence
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
Description:
1. Host/device is powered and operating normally with some form of active communication.
2. Some condition in the host causes the host to issue COMRESET
3. Host releases COMRESET. Once the condition causing the COMRESET is released, the host releases the
COMRESET signal and puts the bus in a quiescent condition.
4. Device issues COMINIT – When the device detects the release of COMRESET, it responds with a COMINIT. This is
also the entry point if the device is late starting. The device may initiate communications at any time by issuing a COMINIT.
5. Host calibrates and issues a COMWAKE.
6. Device responds – The device detects the COMWAKE sequence on its RX pair and calibrates its transmitter (optional).
Following calibration the device sends a six burst COMWAKE sequence and then sends a continuous stream of the
ALIGN sequence starting at the device's highest supported speed. After ALIGNP Dwords have been sent
for 54.6us (2048 nominal Gen1 Dword times) without a response from the host as determined by detection of ALIGNP
primitives received from the host, the device assumes that the host cannot communicate at that speed. If additional
speeds are available the device tries the next lower supported speed by sending ALIGNP Dwords at that rate for
54.6 us (2048 nominal Gen1 Dword times.) This step is repeated for as many slower speeds as are supported. Once the
lowest speed has been reached without response from the host, the device enters an error state.
7. Host locks – after detecting the COMWAKE, the host starts transmitting D10.2 characters at its lowest supported rate.
Meanwhile, the host receiver locks to the ALIGN sequence and, when ready, returns the ALIGN sequence to the device at
the same speed as received. A host shall be designed such that it acquires lock in 54.6us (2048
nominal Gen1 Dword times) at any given speed. The host should allow for at least 873.8 us (32768 nominal Gen1 Dword
times) after detecting the release of COMWAKE to receive the first ALIGNP. This ensures interoperability with
multi-generational and synchronous designs. If no ALIGNP is received within 873.8 us (32768 nominal Gen1 Dword
times) the host restarts the power-on sequence – repeating indefinitely until told to stop by the Application layer.
8. Device locks – the device locks to the ALIGN sequence and, when ready, sends SYNCP indicating it is ready to start
normal operation.
9. Upon receipt of three back-to-back non-ALIGNP primitives, the communication link is established and normal operation
may begin.
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
COMINIT
COMINIT always originates from the drive and requests a communication initialization. It is electrically identical to the
COMRESET signal except that it originates from the device and is sent to the host. It is used by the device to request a
reset from the host in accordance to the sequence shown in Figure 6, below.
Figure 6 : cominit sequence
Description:
1. Host/device are powered and operating normally with some form of active communication.
2. Some condition in the device causes the device to issues a COMINIT
3. Host calibrates and issues a COMWAKE.
4. Device responds – The device detects the COMWAKE sequence on its RX pair and calibrates its transmitter (optional).
Following calibration the device sends a six burst COMWAKE sequence and then sends a continuous stream of the
ALIGN sequence starting at the device's highest supported speed. After ALIGNP Dwords have been sent for 54.6 us (2048
nominal Gen1 Dword times) without a response from the host as determined by detection of ALIGNP primitives received
from the host, the device assumes that the host cannot communicate at that speed. If additional speeds are available the
device tries the next lower supported speed by sending ALIGNP Dwords at that rate for 54.6 us (2048 nominal Gen1
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
Dword times.) This step is repeated for as many slower speeds as are supported. Once the lowest speed has been
reached without response from the host, the device enters an error state.
5. Host locks – after detecting the COMWAKE, the host starts transmitting D10.2 characters at its lowest supported rate.
Meanwhile, the host receiver locks to the ALIGN sequence and, when ready, returns the ALIGN sequence to the device at
the same speed as received. A host shall be designed such that it acquires lock in 54.6 us (2048 nominal Gen1 Dword
times) at any given speed. The host should allow for at least 873.8 us (32768 nominal Gen1 Dword times) after detecting
the release of COMWAKE to receive the first ALIGNP. This ensures interoperability with multi-generational and
synchronous designs. If no ALIGNP is received within 873.8 us (32768 nominal Gen1 Dword times) the host restarts the
power-on sequence – repeating indefinitely until told to stop by the Application layer. 6. Device locks – the device locks to
the ALIGN sequence and, when ready, sends SYNCP indicating it is ready to start normal operation.
6. Upon receipt of three back-to-back non-ALIGNP primitives, the communication link is established and normal operation
may begin.
Power on sequence timing diagram
The following timing diagrams and descriptions are provided for clarity and are informative. The state diagrams provided in
section 8.4 comprise the normative behavior specification and is the ultimate reference.
Figure 7: power on sequence
Transcend Information Inc.
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V0.5
TS2G~16GCFX500
CFast Card
Description:
1. Host/device power-off - Host and device power-off.
2. Power is applied - Host side signal conditioning pulls TX and RX pairs to neutral state (common mode voltage).
3. Host issues COMRESET
4. Host releases COMRESET. Once the power-on reset is released, the host releases the COMRESET signal and puts
the bus in a quiescent condition.
5. Device issues COMINIT – When the device detects the release of COMRESET, it responds with a COMINIT. This is
also the entry point if the device is late starting. The device may initiate communications at any time by issuing a COMINIT.
6. Host calibrates and issues a COMWAKE.
7. Device responds – The device detects the COMWAKE sequence on its RX pair and calibrates its transmitter (optional).
Following calibration the device sends a six burst COMWAKE sequence and then sends a continuous stream of the
ALIGN sequence starting at the device's highest supported speed. After ALIGNP primitives have been sent for 54.6 us
(2048 nominal Gen1 Dword times) without a response from the host as determined by detection of ALIGNP primitives
received from the host, the device assumes that the host cannot communicate at that speed. If additional speeds are
available the device tries the next lower supported speed by sending ALIGNP primitives at that rate for 54.6 us (2048
nominal Gen1 Dword times.) This step is repeated for as many slower speeds as are supported. Once the lowest speed
has been reached without response from the host, the device shall enter an error state.
8. Host locks – after detecting the COMWAKE, the host starts transmitting D10.2 characters at its lowest supported rate.
Meanwhile, the host receiver locks to the ALIGN sequence and, when ready, returns the ALIGN sequence to the device at
the same speed as received. A host shall be designed such that it acquires lock in 54.6 us (2048 nominal Gen1 Dword
times) at any given speed. The host should allow for at least 873.8 us (32768 nominal Gen1 Dword times) after detecting
the release of COMWAKE to receive the first ALIGNP. This insures interoperability with multi-generational and
synchronous designs. If no ALIGNP is received within 873.8 us (32768 nominal Gen1 Dword times) the host restarts the
power-on sequence – repeating indefinitely until told to stop by the Application layer.
9. Device locks – the device locks to the ALIGN sequence and, when ready, sends the SYNCP primitive indicating it is
ready to start normal operation.
10. Upon receipt of three back-to-back non-ALIGNP primitives, the communication link is established and normal operation
may begin.
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
ATA command register
This table with the following paragraphs summarizes the ATA command set.
Support ATA/ATAPI Command
Code
Protocol
EXECUTE DIAGNOSTICS
90h
Device diagnostic
FLUSH CACHE
E7h
Non-data
IDENTIFY DEVICE
ECh
PIO data-In
General Feature Set
READ DMA
C8h
DMA
READ MULTIPLE
C4h
PIO data-In
20h
PIO data-In
40h or 41h
Non-data
READ SECTOR(S)
READ VERIFY SECTOR(S)
SET FEATURES
EFh
Non-data
SET MULTIPLE MODE
C6h
Non-data
WRITE DMA
CAh
DMA
WRITE MULTIPLE
C5h
PIO data-out
WRITE SECTOR(S)
30h
PIO data-out
NOP
00h
Non-data
READ BUFFER
E4h
PIO data-In
WRITE BUFFER
E8h
PIO data-out
CHECK POWER MODE
E5h or 98h
Non-data
IDLE
E3h or 97h
Non-data
IDLE IMMEDIATE
E1h or 95h
Non-data
SLEEP
E6h or 99h
Non-data
Power Management Feature Set
STANDBY
E2h or 96h
Non-data
STANDBY IMMEDIATE
E0h or 94h
Non-data
SECURITY SET PASSWORD
F1h
PIO data-out
SECURITY UNLOCK
F2h
PIO data-out
SECURITY ERASE PREPARE
F3h
Non-data
SECURITY ERASE UNIT
F4h
PIO data-out
SECURITY FREEZE LOCK
F5h
Non-data
SECURITY DISABLE PASSWORD
F6h
PIO data-out
SMART Disable Operations
B0h
Non-data
SMART Enable/Disable Autosave
B0h
Non-data
SMART Enable Operations
B0h
Non-data
Security Mode Feature Set
SMART Feature Set
SMART Return Status
B0h
Non-data
SMART Execute Off-Line Immediate
B0h
Non-data
SMART Read Data
B0h
PIO data-In
Read Native Max Address
F8h
Non-data
Set Max Address
F9h
Non-data
Set Max Set Password
F9h
PIO data-out
Host Protected Area Feature Set
Set Max Lock
F9h
Non-data
Set Max Freeze Lock
F9h
Non-data
Set Max Unlock
F9h
PIO data-out
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
ATA Command Specifications
FLUSH CACHE (E7h)
This command is used by the host to request the device to flush the write cache. If there is data in the write cache, that
data shall be written to the media. The BSY bit shall remain set to one until all data has been successfully written or an
error occurs.
IDENTIFY DEVICE (ECh)
This commands read out 512Bytes of drive parameter information. Parameter Information consists of the
arrangement and value as shown in the following table. This command enables the host to receive the Identify Drive
Information from the device.
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
Identify Device Information Default Value
Word
Address
Default
Value
Total
Bytes
0
044Ah
2
General configuration
1
XXXXh
2
Default number of cylinders
2
0000h
2
Reserved
3
00XXh
2
Default number of heads
4
0000h
2
Obsolete
5
0240h
2
Obsolete
6
XXXXh
2
Default number of sectors per track
7-8
XXXXh
4
Number of sectors per card (Word 7 = MSW, Word 8 = LSW)
9
0000h
2
Obsolete
10-19
aaaa
20
Serial number in ASCII (Right Justified)
20
0002h
2
Obsolete
21
0002h
2
Obsolete
22
0004h
2
Obsolete
23-26
aaaa
8
Firmware revision in ASCII. Big Endian Byte Order in Word
27-46
aaaa
40
Model number in ASCII (Left Justified) Big Endian Byte Order in Word
Maximum number of sectors on Read/Write Multiple command
Data Field Type Information
47
8001h
2
Word
Address
Default
Value
Total
Bytes
48
0000h
2
Reserved
49
0F00h
2
Capabilities
50
4000h
2
Capabilities
51
0200h
2
PIO data transfer cycle timing mode
52
0000h
2
Obsolete
53
0007h
2
Field Validity
54
XXXXh
2
Current numbers of cylinders
55
00XXh
2
Current numbers of heads
56
XXXXh
2
Current sectors per track
57-58
XXXXh
4
Current capacity in sectors (LBAs)(Word 57 = LSW, Word 58 = MSW)
Data Field Type Information
59
01XXh
2
Multiple sector setting
60-61
XXXXh
4
Total number of sectors addressable in LBA Mode
62
0000h
2
Reserved
63
0007h
2
Multiword DMA transfer. Supports MDMA Mode 0,1,and 2
64
0003h
2
Advanced PIO modes supported
65
0078h
2
Minimum Multiword DMA transfer cycle time per word. In PC Card modes this
value shall be 0h
Transcend Information Inc.
16
V0.5
TS2G~16GCFX500
CFast Card
66
0078h
2
Recommended Multiword DMA transfer cycle time. In PC Card modes this
value shall be 0h
67
0078h
2
Minimum PIO transfer cycle time without flow control
68
0078h
2
Minimum PIO transfer cycle time with IORDY flow control
69-75
0000h
14
76
0006h
2
Reserved
Serial ATA capacities
.Support Serial ATA Gen1
.Support Serial ATA Gen2
77-79
000h
6
Reserved
80
0080h
2
Minor version number (ATAPI-7)
81
0000h
2
Minor version number
82
742Bh
2
Command sets supported 0
83
550Ch
2
Command sets supported 1
84
4002h
2
Command sets supported 2
85-87
XXXXh
6
Features/command sets enabled
88
047Fh
2
Ultra DMA Mode Supported and Selected
89
0001h
2
Time required for Security erase unit completion
90
0000h
2
Time required for Enhanced security erase unit completion
91
0000h
2
Current Advanced power management value
92
FFFEh
2
Master Password Revision Code
Word
Address
Default
Value
Total
Bytes
93-127
0000h
70
Reserved
128
0001h
2
Security status
129-159
0000h
64
Vendor unique bytes
160
81F4h
2
Power requirement description
161
0000h
2
Reserved
162
0000h
2
Key management schemes supported
163
0000h
2
CF Advanced True IDE Timing Mode Capability and Setting
Data Field Type Information
164
0000h
2
Reserved
165-175
0000h
22
Reserved
176-255
0000h
140
Reserved
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
READ DMA (C8h)
Read data from sectors during Ultra DMA and Multiword DMA transfer. Use the SET FEATURES command to specify
the mode value. A sector count of zero requests 256 sectors.
READ MULTIPLE (C4h)
This command performs similarly to the Read Sectors command. Interrupts are not generated on each sector, but on
the transfer of a block which contains the number of sectors defined by a Set Multiple command.
READ SECTOR(S) (20h)
This command reads 1 to 256 sectors as specified in the Sector Count register from sectors which is set by Sector
number register. A sector count of 0 requests 256 sectors. The transfer beings specified in the Sector Number register.
READ VERIFY SECTOR(S) (40h/41h)
This command verifies one or more sectors on the drive by transferring data from the flash media to the data buffer in
the drive and verifying that the ECC is correct. This command is identical to the Read Sectors command, except that DRQ
is never set and no data is transferred to the host.
SET FEATURES (EFh)
This command set parameter to Features register and set drive’s operation. For transfer mode, parameter is set to
Sector Count register. This command is used by the host to establish or select certain features.
SET MULTIPLE MODE (C6h)
This command enables the device to perform READ MULTIPLE and WRITE MULTIPLE operations and establishes
the block count for these commands.
WRITE DMA (CAh)
Write data to sectors during Ultra DMA and Multiword DMA transfer. Use the SET FEATURES command to specify
the mode value.
WRITE MULTIPLE (C5h)
This command is similar to the Write Sectors command. Interrupts are not presented on each sector, but on the
transfer of a block which contains the number of sectors defined by Set Multiple command.
WRITE SECTOR(S) (30h)
Write data to a specified number of sectors (1 to 256, as specified with the Sector Count register) from the specified
address. Specify “00h” to write 256 sectors.
NOP (00h)
The device shall respond with command aborted. For devices implementing the Overlapped feature set, subcommand
code 00h in the Features register shall abort any outstanding queue. Subcommand codes 01h through FFh in the
Features register shall not affect the status of any outstanding queue.
READ BUFFER (E4h)
The READ BUFFER command enables the host to read a 512-byte block of data.
WRITE BUFFER (E8h)
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
This command enables the host to write the contents of one 512-byte block of data to the device’s buffer.
„ Power Management Feature Set
CHECK POWER MODE (E5h or 98h)
The host can use this command to determine the current power management mode.
IDLE (E3h or 97h)
This command causes the device to set BSY, enter the Idle mode, clear BSY and generate an interrupt. If sector count
is non-zero, the automatic power down mode is enabled. If the sector count is zero, the automatic power mode is
disabled.
IDLE IMMEDIATE (E1h or 95h)
This command causes the device to set BSY, enter the Idle(Read) mode, clear BSY and generate an interrupt.
SLEEP (E6h or 99h)
This command causes the device to set BSY, enter the Sleep mode, clear BSY and generate an interrupt.
STANDBY (E2h or 96h)
This command causes the device to set BSY, enter the Sleep mode (which corresponds to the ATA “Standby”
Mode), clear BSY and return the interrupt immediately.
STANDBY IMMEDIATE (E0h or 94h)
This command causes the drive to set BSY, enter the Sleep mode (which corresponds to the ATA “Standby” Mode),
clear BSY and return the interrupt immediately.
„ Security Mode Feature Set
SECURITY SET PASSWORD (F1h)
This command set user password or master password. The host outputs sector data with PIO data-out protocol to indicate
the information defined in the following table.
Security set Password data content
Word
0
Content
Control word
Bit 0
Identifier
0=set user password
1=set master password
Bits 1-7
Reserved
Bit 8
Security level
0=High
1=Maximum
Bits 9-15
1-16
Reserved
Password (32 bytes)
Transcend Information Inc.
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TS2G~16GCFX500
17-255
CFast Card
Reserved
Transcend Information Inc.
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TS2G~16GCFX500
CFast Card
SECURITY UNLOCK (F2h)
This command disables LOCKED MODE of the device. This command transfers 512 bytes of data from the host with PIO
data-out protocol. The following table defines the content of this information.
Security Unlock information
Word
0
Content
Control word
Bit 0
Identifier
0=compare user password
1=compare master password
Bits 1-15
1-16
17-255
Reserved
Password (32 bytes)
Reserved
SECURITY DISABLE PASSWORD (F6h)
Disables any previously set user password and cancels the lock. The host transfers 512 bytes of data, as shown in the
following table, to the drive. The transferred data contains a user or master password, which the drive compares with the
saved password. If they match, the drive cancels the lock. The master password is still saved. It is re-enabled by issuing
the SECURITY SET PASSWORD command to re-set a user password.
SECURITY ERASE PREPARE (F3h)
This command shall be issued immediately before the Security Erase Unit command to enable erasing and unlocking.
This command prevents accidental loss of data on the drive.
SECURITY ERASE UNIT (F4h)
The host uses this command to transfer 512 bytes of data, as shown in the following table, to the drive. The
transferred data contains a user or master password, which the drive compares with the saved password. If they match,
the drive deletes user data, disables the user password, and cancels the lock. The master password is still saved. It is
re-enabled by issuing the SECURITY SET PASSWORD command to re-set a user password.
SECURITY FREEZE LOCK (F5h)
Causes the drive to enter Frozen mode. Once this command has been executed, the following commands to update
a lock result in the Aborted Command error:
• SECURITY SET PASSWORD
• SECURITY UNLOCK
• SECURITY DISABLE PASSWORD
• SECURITY ERASE PREPARE
• SECURITY ERASE UNIT
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The drive exits from Frozen mode upon a power-off or hard reset. If the SECURITY FREEZE LOCK command is issued
when the drive is placed in Frozen mode, the drive executes the command, staying in Frozen mode.
SMART Feature Set
Transcend IDE SSD supports the SMART command set and define some vendor-specific data to report spare/bad block
numbers in each memory management unit. Individual SMART commands are identified by the value placed in the
Feature register. Table shows these Feature register values.
Value
Command
D0h SMART READ DATA
D2h SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE
D4h SMART EXECUTE OFF-LINE IMMEDIATE
D8h SMART ENABLE OPERATIONS
D9h SMART DISABLE OPERATIONS
DAh SMART RETURN STATUS
SMART DISABLE OPERATIONS
B0h with a Feature register value of D9h.Disables the SMART function. Upon receiving the command, the drive
disables all SMART operations. This setting is maintained when the power is turned off and then back on.
Once this command has been received, all SMART commands other than SMART ENABLE OPERATIONS are
aborted with the Aborted Command error.
This command disables all SMART capabilities including any and all timer and event count functions related
exclusively to this feature. After command acceptance, this controller will disable all SMART operations. SMART data in
no longer be monitored or saved. The state of SMART is preserved across power cycles.
SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE
B0h with a Feature register value of D2h.Enables or disables the attribute value autosave function. This command
specifies whether the current attribute values are automatically saved to the drive when it changes the mode. This setting
is maintained when the power is turned on and off.
SMART ENABL OPERATIONS
B0h with a Feature register value of D8h.Enables the SMART function. This setting is maintained when the power is
turned off and then back on. Once the SMART function is enabled, subsequent SMART ENABLE OPERATIONS
commands do not affect any parameters
SMART EXECUTE OFF-LINE IMMEDIATE
B0h with the content of the Features register equal to D4h. This command causes the device to immediately initiate
the optional set of activities that collect SMART data in an off-line mode and then save this data to the device's non-volatile
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memory, or execute a self-diagnostic test routine in either captive or off-line mode.
SMART RETURN STATUS
B0h with a Feature register value of DAh. This command causes the device to communicate the reliability status of
the device to the host. If a threshold exceeded condition is not detected by the device, the device shall set the LBA Mid
register to 4Fh and the LBA High register to C2h. If a threshold exceeded condition is detected by the device, the device
shall set the LBA Mid register to F4h and the LBA High register to 2Ch.
SMART Read Data
B0h with the content of the Features register is equal to D0h. This command returns the Device SMART data structure
to the host.
SMART DATA Structure
The following 512 bytes make up the device SMART data structure. Users can obtain the data using the
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The above technical information is based on industry standard data and has been tested to be reliable. However, Transcend
makes no warranty, either expressed or implied, as to its accuracy and assumes no liability in connection with the use of this
product. Transcend reserves the right to make changes to the specifications at any time without prior notice
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