Cactus CFast Product Manual
Cactus Technologies, Limited
Industrial Grade
CFast Card
Product Manual
October 30, 2012
Corporate Headquarters
Suite C, 15/F, Capital Trade Center
62 Tsun Yip Street, Kwun Tong
Kowloon, Hong Kong
1
Cactus Technologies, Limited
The information in this manual is preliminary and is subject to change without notice. Cactus Technologies ® , Limited shall not
be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting
from the furnishing, performance, or use of this material.
Cactus Technologies® makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does Cactus Technologies® assume any liability arising out of the application or use of its products, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages.
Cactus Technologies® products are not designed, intended or authorized for use as components in systems intended for surgical
implant into the body or in other applications intended to support or sustain life or for any application where the failure of a
Cactus Technologies® product can result in personal injury or death. Users of Cactus Technologies® products for such
unintended and unauthorized applications shall assume all risk of such use and shall indemnify and hold Cactus
Technologies® and its officers, employees, subsidiaries, affiliates and distributors harmless against all claims, costs, damages,
expenses and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such
unintended and unauthorized use, even if such claim alleges that Cactus Technologies® was negligent regarding the design or
manufacture of the part.
All parts of the Cactus Technologies® documentation are protected by copyright law and all rights are reserved. This
documentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine-readable form without prior consent, in writing, from Cactus Technologies®, Limited.
© 2005-2012 Cactus Technologies® Limited. All rights reserved.
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Cactus Technologies, Limited
Table of Contents
1.Introduction to Cactus Technologies® Industrial Grade CFast Products ...............................................................4
1.1.Supported Standards.............................................................................................................................. 5
1.2.Product Features.................................................................................................................................... 5
1.2.1.Host and Technology Independence............................................................................................. 5
1.2.2.Defect and Error Management..................................................................................................... 5
1.2.3.Power Supply Requirements........................................................................................................ 6
2.Product Specifications............................................................................................................................................ 6
2.1.System Environmental Specifications.................................................................................................... 6
2.2.System Power Requirements................................................................................................................. 6
2.3.System Performance.............................................................................................................................. 7
2.4.System Reliability................................................................................................................................. 7
2.5.Physical Specifications.......................................................................................................................... 7
2.5.1.CFast Card Physical Specifications.............................................................................................. 8
3.nterface Description.............................................................................................................................................. 11
3.1.CFast Pin Assignments and Pin Type................................................................................................... 11
3.1.1.Optional Write Protect Function................................................................................................. 12
3.2.Electrical Specifications...................................................................................................................... 12
3.2.1.Absolute Maximum Ratings....................................................................................................... 12
3.2.2.DC Characteristics..................................................................................................................... 12
3.2.3.AC Characteristics..................................................................................................................... 13
4.ATA Drive Register Set Definition and Protocol.................................................................................................. 13
4.1.ATA Task File Definitions.................................................................................................................. 13
4.1.1.Data Register............................................................................................................................. 13
4.1.2.Error Register............................................................................................................................ 13
4.1.3.Feature Register......................................................................................................................... 14
4.1.4.Sector Count Register................................................................................................................ 14
4.1.5.Sector Number (LBA 7-0) Register............................................................................................ 14
4.1.6.Cylinder Low (LBA 15-8) Register............................................................................................ 14
4.1.7.Cylinder High (LBA 23-16) Register......................................................................................... 14
4.1.8.Drive/Head (LBA 27-24) Register............................................................................................. 14
4.1.9.Status Registers.......................................................................................................................... 15
4.1.10.Device Control Register........................................................................................................... 15
4.1.11.Drive Address Register............................................................................................................ 16
5.ATA Command Description................................................................................................................................. 16
5.1.ATA Command Set............................................................................................................................. 17
5.1.1.Identify Drive—ECH................................................................................................................. 18
Appendix A. Ordering Information.......................................................................................................................... 20
Appendix B.Technical Support Services.................................................................................................................. 21
Appendix C.Cactus Technologies® Worldwide Sales Offices................................................................................. 22
Appendix D.Limited Warranty................................................................................................................................ 23
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Cactus Technologies, Limited
1.Introduction to Cactus Technologies
Industrial Grade CFast Products
Features:
• Solid state design with no moving parts
• Industry standard CFast Type I form factor
• Capacities from 1GB to 32GB
• Compliant with Serial ATA 2.6 specifications
• Supports Serial ATA Generation I/II transfer rate of 1.5/3.0Gbps
• Support ATA SMART Feature Set
• Support ATA Security Feature Set
• Optional Write Protect switch
• BCH ECC capable of correcting 8 random single bit errors per sector
• High reliability, MTBF > 4,000,000 hrs.
• Enhanced error correction, < 1 error in 10
14
bits read
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• Intelligent power management to reduce power consumption
• Voltage support: 3.3V±10%
The Cactus Technologies® CFast card is a high capacity solid-state flash memory product
that complies with the Serial ATA 2.6 standard and is functionally compatible with a SATA
hard disk drive. Cactus Technologies® CFast cards provide up to 32GB of formatted storage
capacity.
The Cactus Technologies® CFast product uses high quality SLC NAND flash memory from
well known vendors, such as Samsung Corporation. In addition, it include an on-drive
intelligent controller that manages interface protocols, data storage and retrieval as well as
ECC, defect handling and diagnostics, power management, and clock control. The
controller’s firmware is upgradeable, thus allowing feature enhancements and firmware
updates while keeping the BOM stable.
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1.1. Supported Standards
Cactus Technologies® CFast card is fully compatible with the following specification:
• ATA 7 Specification published by ANSI: X3.221 AT Attachment Interface for Disk
Drives
• Serial ATA 2.6 Specification published by the Serial ATA International Organization
• CFast 1.1 Specification published by CFA
1.2. Product Features
Cactus Technologies® Industrial CFast card contains a high level, intelligent controller. This
intelligent controller provides many capabilities including the following:
• Standard ATA register and command set (same as found on most magnetic disk
drives).
• Manages details of erasing and programming flash memory independent of the host
system
• Sophisticated defect managing capabilities (similar to magnetic disk drives).
• Sophisticated system for error recovery using powerful error correction code (ECC).
• Intelligent power management for low power operation.
1.2.1. Host and Technology Independence
Cactus Technologies® Industrial CFast card appears as a standard SATA disk drive to the
host system. The drive utilizes a 512-byte sector which is the same as that in an IDE
magnetic disk drive. To write or read a sector (or multiple sectors), the host computer
software simply issues an ATA Read or Write command to the drive as per the SATA
protocol. The host software then waits for the command to complete. The host system does
not get involved in the details of how the flash memory is erased, programmed or read as
this is all managed by the built-in controller in the drive. Also, with the intelligent on-board
controller, the host system software will not require changing as new flash memory evolves.
Thus, systems that support the Cactus Technologies® Industrial CFast products today will
continue to work with future Cactus Technologies® Industrial CFast cards built with new flash
technology without having to update or change host software.
1.2.2. Defect and Error Management
Cactus Technologies® Industrial CFast card contains a sophisticated defect and error
management system similar to those found in magnetic disk drives. The defect
management is completely transparent to the host and does not consume any user data
space.
The soft error rate for Cactus Technologies® Industrial CFast card is much lower than that of
magnetic disk drives. In the extremely rare case where a read error does occur, the drive
has sophisticated ECC to recover the data.
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These defect and error management systems, coupled with the solid-state construction, give
Cactus Technologies® Industrial CFast cards unparalleled reliability.
1.2.3. Power Supply Requirements
Cactus Technologies® Industrial CFast card operates at a voltage range of 3.3 volts ± 10%.
2.Product Specifications
For all the following specifications, values are defined at ambient temperature and nominal
supply voltage unless otherwise stated.
2.1. System Environmental Specifications
Table 2-1. Environmental Specifications
Cactus Technologies
Industrial CFast
Temperature Operating: 0° C to +70° C
(Standard)
-45° C to +90° C
(Extended)
Humidity Operating & Non-
Operating:
Vibration Operating & Non-
Operating:
Shock Operating & Non-
Operating:
Altitude (relative to
sea level)
Operating & Non-
Operating:
8% to 95%, noncondensing
20G, MIL-STD-883G
Method 2005.2,
Condition A
3,000 G, MIL-STD-883G
Method 2002.4,
Condition C
100,000 feet maximum
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2.2. System Power Requirements
DC Input Voltage
(VCC)
100 mV max.
ripple (p-p)
(Maximum
Average Value)
See Notes.
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Table 2-2. Power Requirements
Cactus Technologies
Industrial CFast
3.3V ±10%
Sleep:
Reading:
Writing:
210 mA
360 mA
480 mA
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Cactus Technologies, Limited
NOTES: All values quoted are typical at ambient temperature and nominal supply
voltage unless otherwise stated.
Sleep mode is specified under the condition that all drive inputs are static CMOS
levels and in a “Not Busy“ operating state.
2.3. System Performance
All performance timings assume the drive controller is in the default (i.e., fastest) mode.
Table 2-3. Performance
Start Up Times Reset to ready: 35 msec typical
Read Transfer
Rate
Write Transfer
Rate
Controller
Overhead
.
Command to
Up to 85MBytes/sec
Up to 80 Mbytes/sec
2 msec maximum
DRQ
2.4. System Reliability
Table 2-4. Reliability
MTBF (@ 25°C) > 4,000,000 hours
Data Reliability
Endurance: > 2,000,000 erase/program cycles
< 1 non-recoverable error in 1014 bits READ
2.5. Physical Specifications
The following sections provide the physical specifications for Cactus Technologies
Industrial CFast products.
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2.5.1. CFast Card Physical Specifications
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