Transcript
Viking Technology DFC4 Datasheet Viking Discrete Flash Card (DFC) modules are case-less connector-less Discrete Flash Card cards which have a BGA footprint for direct soldering to PCBs. These rugged board-mounted SSD’s are designed for harsh environments and eliminate the potential reliability issues associated with removable Discrete Flash Card cards. Ideal for storing OS software or microcode, Viking DFC’s are ideal for embedded real time processing or for mobile low power applications.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 1 of 39
REVISION HISTORY Revision
Release Date
A
March 12, 2013
A1 A2
May 6, 2013 June 26, 2013
Description of Change
Initial release planer design (1445 PCB) using F3 controller Add Cisco PN decoder Revise PN table for rev C firmware
Checked By (Full Name)
Sankar Shanmugam
Legal Information Legal Information
Copyright© 2013 Sanmina Corporation. All rights reserved. The information in this document is proprietary and confidential to Sanmina Corporation. No part of this document may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from Sanmina. Sanmina reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of Sanmina to provide notification of such revision or change. Sanmina provides this documentation without warranty, term or condition of any kind, either expressed or implied, including, but not limited to, expressed and implied warranties of merchantability, fitness for a particular purpose, and noninfringement. While the information contained herein is believed to be accurate, such information is preliminary, and should not be relied upon for accuracy or completeness, and no representations or warranties of accuracy or completeness are made. In no event will Sanmina be liable for damages arising directly or indirectly from any use of or reliance upon the information contained in this document. Sanmina may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time. Sanmina, Viking Technology, and the Viking logo are trademarks of Sanmina Corporation. Other company, product or service names mentioned herein may be trademarks or service marks of their respective owners.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 2 of 39
Viking High Performance DFC Ordering Information Part Number
Raw Capacity
Unformatted Capacity (bytes)
VRFDFC40128EC6C-P1
128MB
127,401,984
VIFDFC40128EC6C-P1
128MB
127,401,984
VRFDFC40256EC9C-P1
256MB
254,803,968
VIFDFC40256EC9C-P1
256MB
254,803,968
VRFDFC40512EC7C-P1
512MB
531,062,784
VRFDFC41024ECEC-MD
1GB
1,046,126,592
VIFDFC41024ECEC-MD
1GB
1,046,126,592
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
SLC NAND Device 128MB SLC, 1Gb BGA NAND Spansion S34ML01G100BHI000, RoHS
128MB SLC, 1Gb BGA NAND Spansion S34ML01G100BHI000,Leaded
256MB SLC, 2Gb BGA NAND Spansion S34ML02G100BHI000, RoHS
256MB SLC, 2Gb BGA NAND Spansion S34ML02G100BHI000, Leaded
512MB SLC, 4Gb BGA NAND Spansion S34ML04G100BHI000, RoHS
1GB SLC, 8Gb BGA NAND Micron MT29F8G08ADADAH4:D, RoHS 1GB SLC, 8Gb BGA NAND Micron MT29F8G08ADADAH4:D, Leaded
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Table of Contents REVISION HISTORY
2
1
7
INTRODUCTION
1.1
Features
7
1.2
Performance
8
1.3
CHS Parameters
8
1.4
Block Diagram
9
1.5
Mechanical Information
10
1.6
RECOMMENDED PCB FOOTPRINT AND PAD NUMBERS
11
1.7 Interface 1.7.1 Host Interface
12 12
2
12
CONNECTOR PINS
2.1
Connector Pin Assignments
12
2.2
Pin Function Description
13
3
PRODUCT SPECIFICATIONS
15
3.1
Absolute Maximum Ratings
15
3.2
DC Operating Conditions and Characteristics
15
3.3
Environmental Specifications
16
3.4
Reliability & Retention
16
3.5
Capacitance
16
3.6 AC Characteristics 3.6.1 Power-on Timing 3.6.2 Attribute Memory Read / Write Timing 3.6.3 Common Memory Read and Write Characteristics Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
16 17 18 19 06/26/2013 Viking Technology Page 4 of 39
3.6.4 3.6.5 3.6.6 3.6.7
I/O Access Read and Write Characteristics True-IDE PIO Mode Read and Write Characteristics True-IDE MDMA Mode Read and Write Characteristics CF-ATA Command Support
20 21 22 23
3.7 Capacity Information 3.7.1 True IDE Mode 3.7.2 PCMCIA Mode (I/O and Memory Modes)
24 24 24
3.8
25
Identify Drive Parameter
3.9 SMART Support 3.9.1 SMART Enable Operations 3.9.2 SMART Disable Operations 3.9.3 SMART Enable/Disable Attribute Autosave 3.9.4 SMART Read Data 3.9.5 SMART Read Attribute Thresholds 3.9.6 SMART Return Status 3.9.7 SMART Read Remap Data 3.9.8 SMART Read Wear Level Data
27 28 28 29 30 33 35 35 36
4
CERTIFICATIONS AND COMPLIANCE
38
5
REFERENCES
38
6
PART NUMBER DECODER
39
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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Table of Tables Table 1-1: DFC Read/Write Performance ___________________________________________ 8 Table 1-2: CHS Parameters _____________________________________________________ 8 Table 2-1: Connector Pin Assignments____________________________________________ 12 Table 2-2: Pin Function Description ______________________________________________ 13 Table 3-1: Absolute Maximum Ratings ____________________________________________ 15 Table 3-2: DC Operating Conditions and Characteristics ______________________________ 15 Table 3-3: Environmental Specifications ___________________________________________ 16 Table 3-4: DFC Reliability and Retention __________________________________________ 16 Table 3-5: Capacitance ________________________________________________________ 16 Table 3-6: Power-on Timing ____________________________________________________ 17 Table 3-7: Attribute Memory Read Write Timing _____________________________________ 18 Table 3-8: Common Memory Read and Write Characteristics __________________________ 19 Table 3-9: I/O Access Read and Write Characteristics ________________________________ 20 Table 3-10: True-IDE PIO Mode Read and Write Characteristics________________________ 21 Table 3-11: True-IDE MDMA Mode Read and Write Characteristics _____________________ 22 Table 3-12: CF-ATA Command Support ___________________________________________ 23 Table 3-13: True IDE Mode_____________________________________________________ 24 Table 3-14: PCMCIA Mode (I/O and Memory Modes) ________________________________ 24 Table 3-15: Identify Drive Parameter _____________________________________________ 25 Table 3-16: Identify Drive Parameter Table in PCMCIA mode showing word differences _____ 27 Table 3-17: Identify Drive Parameter Table in PCMCIA mode showing word differences _____ 27 Table 3-18: Supported SMART Commands determined by Feature Register value__________ 27 Table 4-1: Device Certifications _________________________________________________ 38
Table of Figures Figure 1-1: Functional Block Diagram ______________________________________________ 9 Figure 1-2: Dimensions ________________________________________________________ 10 Figure 3-1: Power On RESET Timing _____________________________________________ 17
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 6 of 39
1 Introduction The Viking Discrete Flash Card (DFC) card is a single-channel, highperformance solution for a wide array of storage applications. Available in capacity ranges from 128MB to 2GB with a standard Viking Discrete Flash Card interface, system designers have an easy way to add small-form factor, reliable storage to any system at a fraction of the size of a hard disk drive. Viking’s rugged industrial designed SSD’s offer the highest flash storage reliability and performance in harsh environments such as shock, vibration, humidity, altitude, ESD, and extreme temperatures. Viking can also provide specialized services to OEMs designing customized hardware and systems by offering: Locked BOM control with customer product change notification (PCN) Pre-installed software, custom software imaging and ID strings Custom packaging and labeling Customer specified testing Conformal coating Localized Field Application Engineering for complete pre and post sale technical support
1.1 Features The main features of Viking Discrete Flash Card memory controller are: Full support for SLC NAND flash memories Built-in ATA / PC card Interface Host data transfer rate in PIO mode 6 or MDMA mode 4 up to 25 MB/s Host data transfer rate in UDMA mode 4 up to 66 MByte/s Supports True-IDE mode Patented power fail management Embedded Reed-Solomon ECC, 4 symbols in a 512B sector Advanced global wear leveling Automatic power-down mode and sleep mode Industrial and commercial temperature ESD protection
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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1.2 Performance Table 1-1: DFC Read/Write Performance Parameter Sequential Read Sequential Write Random Read Random Write
Size 256K 256K 4K 4K
Value up to 45 MB/s up to 30 MB/s up to 3098 IOPS up to 23 IOPS
Note: 1) Measured using IOMETER 2006. 2) Performance may vary under extreme temperatures.
1.3 CHS Parameters Table 1-2: CHS Parameters Capacity 128MB 256MB 512MB 1GB 2GB
Logical Block Addresses (LBA) 248,832 497,664 1,037,232 2,043,216 3,992,688
Cylinders (C) (standard)
Heads (H)
Sectors/Track (S)
486 972 1,029 2,027 3,961
16 16 16 16 16
63 63 63 63 63
Note: The unformatted capacity of the card may be less than the perceived or stated capacity on the label. Please use the LBA count in this table for reference.
*16,383 is the max Cylinder size for True IDE mode. Use total LBA to calculate size when using True IDE mode.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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1.4 Block Diagram Figure 1-1: Functional Block Diagram
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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1.5 Mechanical Information Figure 1-2: Dimensions
Top View showing components
MD_DFC2_A
Note: 1) All dimensions are in inches. (Tolerance is +/- 0.005, unless otherwise stated.) 2) Height: 0.135” max
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 10 of 39
1.6 RECOMMENDED PCB FOOTPRINT AND PAD NUMBERS All dimensions are in inches. (Tolerance is +/- 0.001, unless otherwise stated.)
Note: The pattern is the footprint/placement for the PCB (shown looking down through the DFC)
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 11 of 39
1.7 Interface 1.7.1 Host Interface
Compatible with PCMCIA 2.1, PC Card ATA, Compatible with CF 3.0, CF 4.1 software command set ATA-6 standard compatible in True-IDE mode Memory mapped or I/O operation Fast ATA host-to-buffer transfer rates supporting PIO mode 6, MDMA mode 4, UDMA mode 4 in True-IDE mode Automatic sensing of PCMCIA or True-IDE host interface mode 4 integrated 8 Kbyte Sector Buffers & 256 Byte PCMCIA Attribute Memory PCMCIA Configuration Option Register, Card Configuration and Status Register and Pin Replacement Register support
2 Connector Pins 2.1 Connector Pin Assignments Table 2-1: Connector Pin Assignments Pin A1 A2 A3
Signal Name Memory / I/O / IDE D8 / D8 / D8 BVD1 / #STSCHG / #PDIAG BVD2 / #SPKR / #DASP
Pin
Signal Name Memory / I/O / IDE
Pin
Signal Name Memory / I/O / IDE
Pin
Signal Name Memory / I/O / IDE
B1
D1 / D1 / D1
C1
VSS/ VSS/ VSS
D1
VCC / VCC / VCC
B2
D0 / D0 / D0
C2
VSS/ VSS/ VSS
D2
VCC / VCC / VCC
B3
A0 / A0 / A0
C3
VSS/ VSS/ VSS
D3
D2 / D2 / D2
A4
#REG / #REG / #DMACK
B4
A1 / A1 / A1
C4
D9 / D9 / D9
D4
WP / #IOIS16 / #IOCS16
A5
#INPACK / #INPACK / DMARQ
B5
A2 / A2 / A2
C5
D10 / D10 / D10
D5
A4 / A4 / A4
A6
#WAIT / #WAIT / IORDY
B6
A3 / A3 / A3
C6
A5 / A5 / A5
D6
#CSEL / #CSEL / #CSEL
B7
#CE2 / #CE2 / #CS1
C7
A6 / A6 / A6
D7
RDY / #IREQ / INTRQ
B8
D15 / D15 / D15
C8
A7 / A7 / A7
D8
A8
RESET / RESET / #RESET #CE1 / #CE1 / #CS0
A9
D7 / D7 / D7
B9
D14 / D14 / D14
C9
A8 / A8 / A8
D9
A10
D6 / D6 / D6
B10
D13 / D13 / D13
C10
D10
A11
D5 / D5 / D5
B11
D12 / D12 / D12
C11
D11
A10 / A10 / A10
A12 A13
VSS / VSS / VSS VCC / VCC / VCC
B12 B13
VSS / VSS / VSS VCC / VCC / VCC
C12 C13
A9 / A9 / A9 #OE / #OE / #ATA SEL D3 / D3 / D3 D4 / D4 / D4
#WE / #WE / #WE #IOWR / #IOWR / #IOWR #IORD / #IORD / #IORD
D12 D13
D11 / D11 / D11 VSS/ VSS/ VSS
A7
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 12 of 39
2.2 Pin Function Description Table 2-2: Pin Function Description Signal
A0 ~ A10 #ATA SEL BVD1 ~ BVD2
(Mode) Function (All) Address (IDE) ATA Select (Memory) Battery Voltage Detect
Type
Input
In I/O and Memory modes, these are the Host Address lines that select the I/O port address registers or the memory mapped port address registers, and the control and status registers. In True IDE mode, only A0 ~ A2 are used to select the control, status and data register; A3 ~ A10 are not used.
Input
Grounded to enable True IDE Mode.
Output
Always asserted high since a battery is not used in this card.
Input/ Output
Select the card and indicates to the controller whether a byte or word operation is being performed. #CE2 always accesses the odd byte of the word; #CE1 accesses the even or odd byte of the word depending on the status of A0 and #CE2. #CS0 selects the ATA Command Block Registers; #CS1 selects the ATA Control Block Registers. Signal is not used for I/O or memory mode, but should be grounded by the host. In IDE mode, configures the drive as a Master or Slave. If driven low, the drive is configured as a Master. If the pin is open, the drive is configured as a slave. These bi-directional signals carry the data, commands, and status information between the host and the controller.
Input
Device active / Slave Present signal.
Input
Signal that is asserted by the host in response to DMARQ to initiate DMA transfers.
Output
This signal is used for DMA data transfers. The module asserts this signal when it is ready to transfer data to or from the host. For Multiword DMA transfers, the direction of data transfer is controlled by #IORD and #IOWR. This signal is used in a handshake manner with #DMACK. The device waits until the host asserts #DMACK before negating DMARQ, and reasserts DMARQ if there is more data to transfer.
Output
Strobed low to generate a pulse mode interrupt. Held low for a level mode interrupt.
Output
Interrupt Request to the Host (active high).
#CE1 ~ #CE2
(I/O, Memory) Card Enable
Input
#CS0 ~ #CS1
(IDE) Chip Select
Input
#CSEL
(All) Cable Select
Input
D0 ~ D15 #DASP #DMACK
DMARQ
#IREQ INTRQ
#INPACK IORDY #IOCS16
(All) Host Data Bits (IDE) Active/Slave Present (IDE) DMA Acknowledge (IDE) DMA Request (Memory, I/O) Interrupt Request (IDE) Interrupt Request (I/O) Input Acknowledge (IDE) I/O Channel Ready (IDE) 16 bit I/O
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Description
Output Output Output
Asserted when the card is selected and can respond to an I/O cycle at the address on the bus. The host uses this signal to control the enable of any input data buffers between the card and host system data bus. In True IDE mode, this is the active high I/O Channel Ready signal, where a low signal indicates that the controller is NOT ready and the host should extend the cycle for the present command. Indicates a 16-bit transfer is in progress on the host bus. Open collector output.
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Signal #IOIS16 #IORD #IOWR #OE N/C #PDIAG
RDY
#REG RESET #RESET #SPKR #STSCHG #WAIT #WE WP VCC VSS
(Mode) Function (I/O) 16 bit I/O (All) I/O Read (All) I/O Write (I/O, Memory) Output Enable (All) No Connect (IDE) Passed Diagnostics (Memory) Ready (I/O, Memory) Register Memory Select (I/O, Memory) Reset (IDE) Reset (I/O) Speaker (I/O) Status Changed (I/O, Memory) Input/Output Data Ready (I/O, Memory) Write Enable (Memory) Write Protect Voltage Supply Ground
Type
Description
Output
Selects the 16-bit port. A low signal indicates that a 16-bit port is being addressed or an odd-byte-only operation can be performed at the addressed port.
Input
Clocks I/O data from the internal controller to the card bus.
Input
Clocks I/O data from the card bus to the internal controller.
Input
This input signal is used to enable Memory Read data from the memory card. In Memory mode it is used to read data and the CIS and Configuration registers. In I/O mode, this signal is used to read the CIS and Configuration registers only.
-
Not connected or used on the module.
Output
Used between two drives to indicate that the drive in Slave mode has passed diagnostics.
Output
Input Input Input
This signal is set high when the card is ready to accept a new data transfer operation and is held low when the card is busy. At power up and at Reset, the READY signal is held low (busy) until the card has completed its power up or reset function. No access of any type should be made to the card during this time. In Memory mode, this input signal distinguishes the register (attribute) memory from the common memory. In I/O mode, this signal must be asserted (low) when the I/O address is on the bus. The controller is reset when this signal is asserted (high), initializing the control and status registers and aborting any command in progress. The controller is reset when this signal is asserted (low), initializing the control and status registers and aborting any command in progress.
Output
Always low; speaker not supported by the card.
Input / Output
Indicates a change in RDY/#BSY or Write Protect states.
Output
In Memory and I/O modes, this output is driven by the controller to signal the host to insert a delay before completing a memory or I/O cycle.
Input
In Memory mode, strobes Memory Write data into the card. In both Memory mode and I/O mode, this signal is used for writing the configuration register, in conjunction with the #REG signal. Not used in IDE mode, connect to VCC.
Output
Driven low after the completion of the reset initialization sequence.
Power Gnd
These pins supply 3.3V to the DFC. These pins supply ground to the DFC.
Notes: 1. PU= internal pullup, PD= internal pull down.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 14 of 39
3 Product Specifications 3.1 Absolute Maximum Ratings Table 3-1: Absolute Maximum Ratings Parameter
Symbol
Value
Unit
Supply Voltage Input Voltage Output Voltage Storage Temperature
VCC VIN VOUT TST
-0.3 ~ 4.6 GND - 0.5 ~ VCC + 0.5 GND - 0.5 ~ VCC + 0.5 -65 to + 150
V V V C
Note: Permanent device damage may occur if ‘ABSOLUTE MAXIMUM RATINGS’ are exceeded. Functional operation should be restricted to recommended operating condition. Exposure to higher than recommended voltage for extended periods of time could affect device reliability.
3.2 DC Operating Conditions and Characteristics Recommended operating conditions (Voltages referenced to GND, TA = 0 to 70°C) Table 3-2: DC Operating Conditions and Characteristics Symbol VIL
Parameter Input LOW Voltage
Min -0.3
Max +0.8
Units V
VIH VOL VOH
Input HIGH Voltage Output LOW Voltage Output HIGH Voltage
2.0
VCC+0.3 0.45
V V V
0.35 45 80
mA mA mA
typical 0.2mA typical 30mA typical 50mA
ICC ILI ILO
Operating Current Sleep mode Operating, 20 MHz Operating, 40 MHz Input Leakage Current Output Leakage Current
±10 ±10
μA μA
if not pull-up/pull-down
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
2.4
Notes
at 4mA (12mA for DASP) at 1mA
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3.3 Environmental Specifications Table 3-3: Environmental Specifications Parameter Operating Temperature (Commercial Temp): Operating Temperature (Industrial Temp): Humidity (non-condensing):
Value 0 to 70c -40 to 85c 5% to 95% non-condensing
3.4 Reliability & Retention Table 3-4: DFC Reliability and Retention Parameter Data Reliability Data Retention
Value Bit Error rate 10E-15 10 Years
3.5 Capacitance Table 3-5: Capacitance Parameter Input capacitance Output capacitance
Symbol Cin Cout
Min. -
Max. 10 10
Unit pF pF
3.6 AC Characteristics Input rise and fall time requirements: Input rise and fall time should be 10ns or less.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 16 of 39
3.6.1 Power-on Timing Table 3-6: Power-on Timing Parameter Card Enable setup time VCC detect to RST disable Host RESET Hi-z hold time Host RESET width Host RESET setup time
Symbol tsu(VCC) tRPU th(Hi-z RESET) tw(RESET) tsu(RESET)
Min
Typ
Max
Unit
275.01 100 255 10us 20
150 -
250 20ms -
ms ms ms ms
Note: See Figure 1 for details.
Figure 3-1: Power On RESET Timing
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 17 of 39
3.6.2 Attribute Memory Read / Write Timing Table 3-7: Attribute Memory Read Write Timing Symbol
Parameter
Min
tcR ta(A) ta(CE) ta(OE) tdis(CE) tdis(OE) ten(CE) ten(OE)
250
tv(A) tsu(A) th(A) tsu(CE) th(CE)
Read cycle time Address access time Card Enable access time Output Enable access time Output disable time from CE Output disable time from OE Output enable time from CE Output enable time from OE Data valid time from address change Address setup time Address hold time Card Enable setup time Card Enable hold time
tcW tw(WE) tsu(A) tsu(CE) tsu(DWEH) th(D) tdis(WE) ten(WE) tsu(OEWE) th(OE-WE)
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Max
Units
5 5
ns ns ns ns ns ns ns ns
0 30 20 0 20
ns ns ns ns ns
Write cycle time
250
ns
Write pulse time Address setup time for WE Card Enable setup time for WE
150 30 30
ns ns ns
Data setup time for WE Data hold time Output disable time from WE Output enable time from WE
80 30 5
ns ns ns ns
Output Enable setup time for WE Output Enable hold time from WE
10 10
ns ns
250 250 125 100 100
100
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3.6.3 Common Memory Read and Write Characteristics Table 3-8: Common Memory Read and Write Characteristics Symbol tcR ta(A) ta(CE) ta(OE) tdis(CE) tdis(OE) ten(CE) ten(OE) tv(A) tsu(A) th(A) tsu(CE) th(CE) tcW tw(WE) tsu(A) tsu(CE) tsu(DWEH) th(D) trec(WE) tdis(WE) ten(WE) tsu(OEWE) th(OE-WE)
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Parameter Read cycle time Address access time Card Enable access time Output Enable access time Output disable time from CE Output disable time from OE Output enable time from CE Output enable time from OE Data valid time from address change Address setup time Address hold time Card Enable setup time Card Enable hold time Write cycle time Write pulse time Address setup time for WE Card Enable setup time for WE
Min 80
Data setup time for WE Data hold time Write recover time Output disable time from WE Output enable time from WE Output Enable setup time for WE Output Enable hold time from WE
Max
5 5
Units ns ns ns ns ns ns ns ns
0 10 10 0 10 80 55 10 0
ns ns ns ns ns ns ns ns ns
30 10 15 5
ns ns ns ns ns
10 10
ns ns
55 55 45 45 45
45
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3.6.4 I/O Access Read and Write Characteristics Table 3-9: I/O Access Read and Write Characteristics Symbol td(IORD) th(IORD) tw(IORD) tsuA(IORD) thA(IORD) tsuCE(IORD) thCE(IORD)
Parameter Data delay after IORD Data hold following IORD IORD pulse width Address setup time for IORD Address hold time from IORD Card Enable setup time for IORD Card Enable hold time from IORD
Min
tsuREG(IORD) thREG(IORD) tdfINP(IORD) tdrINP(IORD) tdfIO16(IORD) tdrIO16(IORD) tsu(IOWR) th(IOWR) tw(IOWR) tsuA(IOWR) thA(IOWR) tsuCE(IOWR) thCE(IOWR)
REG setup time for IORD REG hold time from IORD INPACK delay falling from IORD INPACK delay rising from IORD IOIS16 delay falling from address IOIS16 delay rising from address Data setup time for IOWR Data hold time from IOWR IOWR pulse width Address setup time for IOWR Address hold time from IOWR Card Enable setup time for IOWR Card Enable hold time from IOWR
5 0 0
15 5 55 15 10 5 10
ns ns ns ns ns ns ns ns ns ns ns ns ns
tsuREG(IOWR) thREG(IOWR)
REG setup time for IOWR REG hold time from IOWR
5 0
ns ns
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Max 45
5 55 15 10 5 10
45 45 35 35
Units ns ns ns ns ns ns ns
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3.6.5 True-IDE PIO Mode Read and Write Characteristics Table 3-10: True-IDE PIO Mode Read and Write Characteristics Symbol t0 t1 t9 t2 t2i t5 t6 t6z t3 t4
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Parameter Cycle time Address setup time for IORD/IOWR Address hold time from IORD/IOWR IORD/IOWR pulse width IORD/IOWR recovery time Data setup time for IORD Data hold following IORD Output disable time from IORD Data setup time for IOWR Data hold following IOWR
Min 80
Max
Units ns
10
ns
10 55 20 10 5
ns ns ns ns ns ns ns ns
20 15 5
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3.6.6 True-IDE MDMA Mode Read and Write Characteristics Table 3-11: True-IDE MDMA Mode Read and Write Characteristics Symbol tO tD tE tF tG tH tI tJ tKR, tKW tLR, tLW tM tN tZ
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Parameter Cycle time IORD/IOWR pulse width IORD data access Data hold following IORD Data setup time for IORD/IOWR Data hold following IOWR DMACK setup time for IORD/IOWR DMACK hold following IORD/IOWR IORD/IOWR recovery time IORD/IOWR to DMARQ delay CS0, CS1 setup for IORD/IOWR CS0, CS1 hold following IORD/IOWR Output disable time from DMACK
Min 80 55
Max
5 10 5
Units ns ns ns ns ns ns
0
ns
5 20
ns ns ns ns
45
35 5 10 25
ns ns
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3.6.7 CF-ATA Command Support Table 3-12: CF-ATA Command Support No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
Command Check Power Mode Erase Sector Execute Drive Diagnostic Flush Cache Format Track Identify Drive Idle Idle Immediate Initialize Drive Parameters Media Lock Media Unlock NOP Read Buffer Read DMA Read Multiple Read Long Read Native Max Address Read Sector(s) Read Verify Sector(s) Recalibrate Request Sense Security Disable Password Security Erase Prepare Security Erase Unit Security Freeze Lock Security Set Password Security Unlock Seek Set Feature Set Max Address Set Multiple Mode Set Sleep Mode SMART Standby Standby Immediate Translate Sector Write Buffer Write DMA Write Long
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Code E5h, 98h C0h 90h E7h 50h ECh E3h, 97h E1h, 95h 91h DEh DFh 00h E4h C8h, C9h C4h 22h, 23h F8h 20h, 21h 40h, 41h 1Xh 03h F6h F3h F4h F5h F1h F2h 7Xh EFh F9h C6h E6h, 99h B0h E2h, 96h E0h, 94h 87h E8h CAh, CBh 32h, 33h
FR ---------------------------Y ----Y -------
SC -Y --Y -Y -Y ----Y Y --Y Y ---------Y Y Y -Y Y -Y -Y --
SN -Y -----------Y Y Y -Y Y ---------Y Y -----Y -Y Y
CY -Y --Y --------Y Y Y -Y Y ---------Y Y --Y --Y -Y Y
DR Y Y -Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
HD -Y --Y ---Y ----Y Y Y -Y Y ---------Y Y -----Y -Y Y
LBA -Y --Y --------Y Y Y -Y Y ---------Y Y -----Y -Y Y 06/26/2013 Viking Technology Page 23 of 39
No. 40 41 42 43 44
Command Write Multiple Write Multiple w/o Erase Write Sector(s) Write Sector(s) w/o Erase Write Verify
Code C5h CDh 30h, 31h 38h 3Ch
FR ------
SC Y Y Y Y Y
SN Y Y Y Y Y
CY Y Y Y Y Y
DR Y Y Y Y Y
HD Y Y Y Y Y
LBA Y Y Y Y Y
Notes: Abbreviations in this table: FR: Features Register SC: Sector Count Register (00h – FFh; 00h means 256 sectors SN: Sector Number Register CY: Cylinder Low/ High Register DR: Drive bit of Drive/Head Register HD: Head Number (0-15) of Drive/ Head Register LBA: Logic Block Address Mode Support --: Not used for this command Y: Used for this command
3.7 Capacity Information 3.7.1 True IDE Mode Table 3-13: True IDE Mode Card Size
Cylinders (Note 1)
Head
Sector
Total Sectors (Note 2, 3)
128MB 256MB 512MB 1GB 2GB
486 972 1029 2027 3961
16 16 16 16 16
32 32 63 63 63
248,832 497,664 1,037,232 2,043,216 3,992,688
Notes: 1. 2.
Usable Capacity (bytes) 127,401,984 254,803,968 531,062,784 1,046,126,592 2,044,256,256
Total sectors remaining after deducting firmware and spare block overhead. Available data capacity is dependent on format and partition type.
3.7.2 PCMCIA Mode (I/O and Memory Modes) Table 3-14: PCMCIA Mode (I/O and Memory Modes) Card Size 128MB 256MB 512MB 1GB 2GB Notes: 1. 2.
Cylinders (Note 1) 486 972 1029 2027 3961
Head
Sector
16 16 16 16 16
32 32 63 63 63
Total Sectors (Note 2, 3) 248,832 497,664 1,037,232 2,043,216 3,992,688
Usable Capacity (bytes) 127,401,984 254,803,968 531,062,784 1,046,126,592 2,044,256,256
Total sectors remaining after deducting firmware and spare block overhead. Available data capacity is dependent on format and partition type.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 24 of 39
3.8 Identify Drive Parameter An example of the parameter information received from the DFC when invoking the Identify Drive command (ECh) is listed in table below: Table 3-15: Identify Drive Parameter Word Address 0 1 2 3 4 5 6 7-8 9 10 - 19 20 21 22 23 - 26 27 - 46 47 48 49 50 51 52 53 54 55 56 57 - 58 59 60 - 61 62 63 64 65 66 67 68 69 - 79 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Default Value 045AH XXXXH 0000H 00XXH 0000H 0200H XXXXH XXXXH 0000H XXXXH 0002H 0001H 0004H XXXXH XXXXH 8001H 0000H 0F00H 4001H 0200H 0000H 0007H XXXXH XXXXH XXXXH XXXXH 010XH XXXXH 0000H 0X0XH 0003H 0078H 0078H 0078H 0078H 0000H
Bytes 2 2 2 2 2 2 2 4 2 20 2 2 2 8 40 2 2 2 2 2 2 2 2 2 2 4 2 4 2 2 2 2 2 2 2 22
Data Field Type Information General configuration bit-significant information Default number of cylinders Reserved Default number of heads Number of unformatted bytes per track Number of unformatted bytes per sector Default number of sectors per track Number of sectors per DFC Reserved Serial Number in ASCII (20 characters) Buffer type (dual-ported multi-sector) Buffer size in 512 byte increments # of ECC bytes passed on Read/Write Long commands Firmware revision (8 ASCII characters) Model Number in ASCII (40 characters) Maximum 1 sector on Read/Write Multiple command Double Word not supported Capabilities: DMA, LBA, IORDY supported Capabilities: device specific standby timer minimum PIO data transfer cycle timing mode 2 DMA data transfer cycle timing mode not supported Data Fields 54 – 58, 64 – 70, and 88 are valid Number of Current Logical Cylinders Number of Current Logical Heads Number of Current Logical Sectors Per Track Current Capacity in Sectors Multiple sector setting is valid Total number of sectors addressable in LBA Mode Single word DMA transfer not implemented Multiword DMA transfer mode Advanced PIO modes supported (modes 3 and 4) Minimum multiword DMA cycle time, 0 if no MDMA Recommended multiword DMA cycle time, 0 if no MDMA Minimum PIO cycle time without flow control Minimum PIO cycle time with flow control Reserved 06/26/2013 Viking Technology Page 25 of 39
Word Address 80 81
Default Value 0020H 0000H
82
740BH
2
83 84
5004H 4000H
2 2
85
740XH
2
86 87 88 89 90 91 92 93 94 – 127 128
1004H 4000H XXXXH 0000H 0000H 0000H XXXXH XXXXH 0000H 0XXXH
2 2 2 2 2 2 2 2 72 2
129
XX00H
2
XXXXH
8
848AH 045AH
2 2
XXXXH
12
XXXXH
12
XXXXH
12
0000H
12
A064H 0000H 0000H XXXXH 001BH
2 2 2 2 2
0000H
180
XXA5H
2
130 – 133 134 135 136 – 141 142 – 147 148 – 153 154 – 159 160 161 162 163 164 165 – 254 255
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Bytes
Data Field Type Information
2 2
Major version number, ATA-5 support Minor version number, not reported Command set: NOP, READ BUFFER, WRITE BUFFER, host protected area, power management feature set, Security Mode feature set, SMART feature set Command set: FLUSH CACHE, CFA feature set Command set/feature supported extension Command set enabled: NOP, READ BUFFER, WRITE BUFFER, host protected area, power management feature set, Security Mode feature set enabled/disabled, SMART feature set enabled/disabled Command set enabled: FLUSH CACHE, CFA feature set Command set/feature default UDMA mode Time for Security Erase Unit not specified Time for Enhanced Security Erase Unit not specified Reserved Master Password Revision Code Hardware Reset Result Reserved Security Status Write Protect Status. Bit 15 = permanent write protect, no more spare blocks available Firmware date string General Configuration word for PCMCIA mode General Configuration word for True-IDE mode Firmware file name Preformat file name Anchor program file name Reserved CFA Power Mode: no power level 1, max 100mA Reserved Key Management Schemes: CPRM not supported CFA advanced modes: supported and enabled bits CFA advanced modes: 80ns I/O and Memory supported Reserved Integrity Word
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Table 3-16: Identify Drive Parameter Table in PCMCIA mode showing word differences Word Address 0 49 63 65 66 93 163 164
Default Value 848AH 0E00H 0000H 0000H 0000H 0000H 0000H
Bytes 2 2 2 2 2 2 4
Data Field Type Information General configuration bit-significant information Capabilities: LBA, IORDY supported Multi Word DMA transfer mode not supported Minimum Multi Word DMA cycle time Recommended Multi Word DMA cycle time Hardware Reset Result not supported CFA advanced modes: not supported
Table 3-17: Identify Drive Parameter Table in PCMCIA mode showing word differences Word Address
Default Value
Bytes
83 86 160-164
5000H 1000H 0000H
2 2 10
Data Field Type Information Command set: FLUSH CACHE Command set enabled: FLUSH CACHE Reserved
3.9 SMART Support The Viking Firmware supports the following SMART commands, determined by the Feature Register value. Table 3-18: Supported SMART Commands determined by Feature Register value Value D0h D1h D2h D8h D9h DAh E0h E1h
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Command SMART Read Data SMART Read Attribute Thresholds SMART Enable/Disable Attribute Autosave SMART Enable Operations SMART Disable Operations SMART Return Status SMART Read Remap Data SMART Read Wear Level Data
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SMART commands with Feature Register values not mentioned in the above table are not supported, and will be aborted.
3.9.1 SMART Enable Operations COMMAND CODE | B0h with a Feature Register value of D8h PROTOCOL | Non-data. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
D8h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if the signature in the Cylinder registers is invalid. DESCRIPTION | This command enables access to the SMART capabilities of the firmware. The state of SMART (enabled or disabled) is preserved across power cycles.
3.9.2 SMART Disable Operations COMMAND CODE | B0h with a Feature Register value of D9h PROTOCOL | Non-data. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
D9h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, or if SMART is not enabled.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 28 of 39
DESCRIPTION | This command disables access to the SMART capabilities of the firmware. The state of SMART (enabled or disabled) is preserved across power cycles.
3.9.3 SMART Enable/Disable Attribute Autosave COMMAND CODE | B0h with a Feature Register value of D2h PROTOCOL | Non-data. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3 D2h 00h or F1h
2
1
0
4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, or if SMART is not enabled. DESCRIPTION | This command is effectively a no-operation as the data for the SMART functionality is always available and kept current in the firmware.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 29 of 39
3.9.4 SMART Read Data COMMAND CODE | B0h with a Feature Register value of D0h PROTOCOL | PIO data in. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
D0h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, or if SMART is not enabled. DESCRIPTION | This command returns one sector of SMART data. The data structure returned is:
Offset 0..1 2..361 362 363 364..365 366 367 368..369 370 371 372 373 374..385 386..387 388..391 392..395 396 397 398..510 511
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Value 0004h 00h 00h 0000h 00h 00h 0003h 00h 00h 00h 00h 00h 0002h
00h
Description SMART structure version Attribute entries 1 to 30 (12 bytes each) Off-line data collection status (no off-line data collection) Self-test execution status byte (self-test completed) Total time to complete off-line data collection Off-line data collection capability (no off-line data collection) SMART capabilities Error logging capability (no error logging) Short self-test routine recommended polling time Extended self-test routine recommended polling time Reserved SMART Version Firmware “Commit” counter Firmware Wear Level Threshold Global Wear Leveling active Global Bad Block Management active Data structure checksum
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There are six attributes that are defined for the firmware. These return their data in the attribute section of the SMART data, using a 12 byte data field. The field at offset 386 gives a version number for the contents of the SMART data structure. For the controller, only version 2 is defined. The byte at offset 396 is 0 if the wear leveling has not yet started its global operation and 1 if the global wear leveling has started. This happens when the most used chip has reached the erase count threshold defined in the Erase Count Attribute. The byte at offset 397 is 0 if the bad block management is still working chip local, and 1 if the global bad block management has started. This happens when one of the flash chips runs out of spare blocks, in this case spare blocks from different flash chips are used. 3.9.4.1 Spare Block Count Attribute This attribute gives information about the amount of available spare blocks. Offset 0 1..2 3
Value 196 0003h
4..5 6..7 8..9 10..11
Description Attribute ID – Reallocation Count Flags – Pre-fail type, attribute value is updated during normal operation Attribute value. The value returned here is the percentage of remaining spare blocks summed over all flash chips, i.e. (100 x current spare blocks / initial spare blocks) Initial number of spare blocks of the flash chip with the lowest current number of spare blocks Current number of spare blocks of the flash chip with the lowest current number of spare blocks Sum of the initial number of spare blocks for all flash chips Sum of the current number of spare blocks for all flash chips
3.9.4.2 Erase Count Attribute This attribute gives information about the amount of flash block erases that have been performed. Offset 0 1..2 3 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Value 229 000Xh
Description Attribute ID – Erase Count Usage (vendor specific) Flags – Pre-fail or Advisory type, attribute value is updated during normal operation Attribute value. The value returned here is an estimation of the remaining card life, in percent, based on the number of flash block 06/26/2013 Viking Technology Page 31 of 39
erases compared to the target number of erase cycles per block. Estimated total number of block erases
4..11
This attribute is used for the SMART Return Status command. If the attribute value field is less than the erase count threshold, the SMART Return Status command will indicate a threshold exceeded condition.
3.9.4.3 Total ECC Errors Attribute This attribute gives information about the total number of ECC errors that have occurred on flash read commands. This attribute is not used for the SMART Return Status command. Offset 0 1..2
Value 203 0002h
3 4..7 8..11
64h
Description Attribute ID – Number of ECC errors Flags – Advisory type, attribute value is updated during normal operation Attribute value. This value is fixed at 100. Total number of ECC errors (correctable and uncorrectable)
3.9.4.4 Correctable ECC Errors Attribute This attribute gives information about the total number of correctable ECC errors that have occurred on flash read commands. This attribute is not used for the SMART Return Status command. Offset 0 1..2
Value 204 0002h
3 4..7 8..11
64h
Description Attribute ID – Number of corrected ECC errors Flags – Advisory type, attribute value is updated during normal operation Attribute value. This value is fixed at 100. Total number of ECC errors (correctable and uncorrectable)
3.9.4.5 Total Number of Reads Attribute This attribute gives information about the total number of flash read commands. This can be useful for the interpretation of the number of correctable or total ECC errors. This attribute is not used for the SMART Return Status command. Offset 0 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Value 232
Description Attribute ID – Number of Reads 06/26/2013 Viking Technology Page 32 of 39
1..2
0002h
3 4..11
64h
Flags – Advisory type, attribute value is updated during normal operation Attribute value. This value is fixed at 100. Total number of flash read commands
3.9.4.6 UDMA CRC Errors Attribute This attribute gives information about the total number of UDMA CRC errors that have occurred on flash read commands. This attribute is not used for the SMART Return Status command. Offset 0 1..2
Value 199 0002h
3 4..7 8..11
64h
Description Attribute ID – UDMA CRC error rate Flags – Advisory type, attribute value is updated during normal operation Attribute value. This value is fixed at 100. Total number of UDMA CRC errors
3.9.5 SMART Read Attribute Thresholds COMMAND CODE | B0h with a Feature Register value of D1h PROTOCOL | PIO data in. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
D1h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, or if SMART is not enabled. DESCRIPTION | This command returns one sector of SMART attribute thresholds. The data structure returned is: Offset 0..1 2..361 362..379 380..510 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Value 0004h 0002h 00h 00h
Description SMART structure version Attribute threshold entries 1 to 30 (12 bytes each) Reserved 06/26/2013 Viking Technology Page 33 of 39
511
Data structure checksum
3.9.5.1 Spare Block Count Attribute Threshold Offset 0 1 2..11
Value 196 00h
Description Attribute ID – Reallocation Count Factory Programmed Spare Block Count Threshold Reserved
3.9.5.2 Erase Count Attribute Threshold Offset 0 1 2..11
Value 229 00h
Description Attribute ID – Erase Count Usage Factory Programmed Erase Count Threshold Reserved
3.9.5.3 Total ECC Errors Attribute Threshold Offset 0 1 2..11
Value 203 00h 00h
Description Attribute ID – Number of ECC errors No threshold for the Total ECC Errors Attribute Reserved
3.9.5.4 Correctable ECC Errors Attribute Offset 0 1 2..11
Value 204 00h 00h
Description Attribute ID – Number of corrected ECC errors No threshold for the Correctable ECC Errors Attribute Reserved
3.9.5.5 Total Number of Reads Attribute Offset 0 1 2..11
Value 232 00h 00h
Description Attribute ID – Number of Reads No threshold for the Total Number of Reads Attribute Reserved
3.9.5.6 UDMA CRC Errors Attribute Offset 0 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Value 199
Description Attribute ID – UDMA CRC error rate 06/26/2013 Viking Technology Page 34 of 39
1 2..11
00h 00h
No threshold for the UDMA CRC Errors Attribute Reserved
3.9.6 SMART Return Status COMMAND CODE | B0h with a Feature Register value of DAh PROTOCOL | Non-data. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
DAh 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | Returns a status indication as described below. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, or if SMART is not enabled. DESCRIPTION | This command checks the device reliability status. If a threshold exceeded condition exists for either the Spare Block Count attribute or the Erase Count attribute, the device will set the Cylinder Low register to F4h and the Cylinder High register to 2Ch. If no threshold exceeded condition exists, the device will set the Cylinder Low register to 4Fh and the Cylinder High register to C2h.
3.9.7 SMART Read Remap Data COMMAND CODE | B0h with a Feature Register value of E0h PROTOCOL | PIO data in. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
E0h 01h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, if the Sector Count is not 1, or if SMART is not enabled. Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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DESCRIPTION | This command returns one sector of spare block information. The information is the initial number of blocks per flash chip available for bad block remap, and the current number of blocks per flash chip available for bad block remap. The layout of the returned sector is: Offset 0..31 32..63 64..511
Description Initial number of replacement blocks for chips 0..15, 2 bytes per entry Current number of replacement blocks for chips 0..15, 2 bytes per entry
3.9.8 SMART Read Wear Level Data COMMAND CODE | B0h with a Feature Register value of E1h PROTOCOL | PIO data in. INPUTS | Register Features Sector Count Sector Number Cylinder Low Cylinder High Device/Head Command
7
6
5
4
3
2
1
0
E1h 04h 4Fh C2h 1
1
1
D B0h
NORMAL OUTPUTS | None required. ERROR OUTPUTS | Aborted if either the signature in the Cylinder registers is invalid, if the Sector Count is not 4, or if SMART is not enabled. DESCRIPTION | This command will return four sectors of information regarding the status of the wear leveling. The information returned is the distribution of the blocks into the 1024 possible wear level classes. For each of the wear level classes, the number of blocks that have this class is returned in the data sectors. The layout of the returned sectors is, with n the sector number from 0 to 3: Offset 0..1 2..3 … 508..509 510..511 Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
Description Number of flash blocks that have wear level class 256*n+0 Number of flash blocks that have wear level class 256*n+1 … Number of flash blocks that have wear level class 256*n+254 Number of flash blocks that have wear level class 256*n+255 06/26/2013 Viking Technology Page 36 of 39
i.e. the first sector returns the information for wear level classes 0 to 255, the second sector returns the information for wear level classes 256 to 511, and so on. A block moves from one wear level class into the next when it reaches the number of erases that is specified as the factory programmed “Wear Level Threshold”. A common threshold number is 4095, this means that blocks in wear level class 0 have seen 0 to 4095 erases, blocks in wear level class 1 have seen 4096 to 8191 erases, and so on. Using this information, statements about the wear of the card, and of the estimated remaining life can be made. The useful range of wear level classes is 0 to 1022, class 1023 has blocks that are not subject to wear leveling, like the Anchor block.
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
06/26/2013 Viking Technology Page 37 of 39
4 Certifications and Compliance Table 4-1: Device Certifications Certification/Compliance RoHS China RoHS
Description Restriction of Hazardous Substance Directive Restriction of Hazardous Substance Directive, China
5 References CF+ and Compact Flash Card Specification Revision 4.1 (for command set only)
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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6 Part Number Decoder
Datasheet PSFDFC4XXXXEXX Revision A2 www.vikingtechnology.com
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