Memtech AT2515 Manuale utente
AT2515 2.5” Bulldog
2.5” IDE Solid State Flash Drive
User Guide
80-03-00036
Revision 1.1
April 2006
Memtech SSD Corporation
2107 N. First Street, Suite 415
San Jose, CA 95131
(408) 452-1277
(800) 445-5511
www.memtech.com
2.5” Bulldog User Guide April 10, 2006 page 2 of 14
Table of Contents
1. HIGHLIGHTS..........................................................................................................3
2. INTRODUCTION ....................................................................................................3
3. INSTALLATION......................................................................................................4
3.1 PROCEDURE........................................................................................................4
3.2 JUMPERS ............................................................................................................6
3.3 IDE INTERFACE ...................................................................................................8
4. OPERATION.........................................................................................................10
4.1 ECC ..................................................................................................................10
4.2 WEAR OUT........................................................................................................10
4.3 POWER.............................................................................................................11
5. MAINTENANCE ...................................................................................................12
6. SPECIFICATIONS................................................................................................13
6.1 INTERFACE........................................................................................................13
6.2 PERFORMANCE*................................................................................................13
6.3 ENVIRONMENTAL ...............................................................................................13
6.4 POWER REQUIREMENTS.....................................................................................13
6.5 MECHANICAL.....................................................................................................13
7. APPENDIX............................................................................................................14
7.1 CONTACT INFORMATION......................................................................................14
7.2 ATA SPECIFICATION INFORMATION ......................................................................14
7.3 LIMITED LIFETIME WARRANTY.............................................................................14
2.5” Bulldog User Guide April 10, 2006 page 3 of 14
1. HIGHLIGHTS
•128Mbyte to 8 Gbytes uncompressed capacity
•Full -40oC to +85oC operating temperature range
•5 volt, low power operation
•Completely solid state - no moving parts and no batteries
•Extremely Rugged - 1000G operating shock, 15G operating vibration
•Low profile 2.5” drive form factor only 9mm tall
•Standard a 44-pin, 2mm IDE interface
•Transfers with PIO Mode 4 and DMA Mode 2 support
•72-bit Reed-Solomon ECC for exceptional data reliability
•Power hold-up circuit
•0.3 millisecond access time
•6 Mbytes/second sustained Read throughput
•6 Mbytes/second sustained Write throughput
•Pending CE and CSA Safety Compliance
2. INTRODUCTION
The AT2515 is the low cost member of the Bulldog family of drives available today. With a
capacity of 8 Gbytes in a standard 2.5” drive form factor, it delivers exceptional value for its
features. It is completely solid state, with no moving parts. This accounts for the unit’s
exceptional ruggedness and wide operating temperature range.
The AT2515 employs sector erasable NAND EEPROMs (Flash) to deliver up to 8 Gbytes of
uncompressed, non-volatile solid state storage in an extremely small, rugged form factor.
Sustained host data throughput is 6 Mbytes per seconds for reads and 6 Mbytes/second for
writes. The drive supports up to PIO Mode-4 and DMA Mode-2 IDE bus access. It is 100%
IDE compatible and requires no special drivers to operate. It is essentially a drop in
replacement for standard rotating media.
The IDE interface is implemented using an application specific IDE Flash controller with an
integrated 72-bit Reed-Solomon error detection and on-the-fly correction mechanism that
enhance data reliability. The ECC circuitry, in conjunction with the controller’s remapping
algorithms, makes for a virtually bulletproof medium for data retention.
The drive is available in a number of standard capacities ranging from 128 Mbytes to 8
Gbytes. Please contact the factory with your capacity requirements. Disk compression
utilities may be used to effectively double the usable capacity of the drive.
Each drive is fully tested under environmental and voltage extremes, to guarantee data
integrity in even the harshest conditions.
2.5” Bulldog User Guide April 10, 2006 page 4 of 14
3. INSTALLATION
3.1 PROCEDURE
3.1.1 ESD PRECAUTIONS
Static electricity kills... electronics! Before handling the AT2515, please observe the following
precautions to avoid ESD damage to the unit:
•Keep the drive in its shielded bag until ready to install.
•Ground yourself by touching a grounded chassis frame of the computer, or use a grounded
wrist strap before and during the installation process.
•Do not touch the exposed drive electronics or connectors. Always handle the drive by the
edges or mounting rails.
3.1.2 CONFIGURATION
Configure the drive using the jumper diagrams given in Section 3.2. The drive is shipped
configured for a single drive system or as the master in a two-drive system. Change the
configuration as required. Never attempt to change the jumpers while the drive is plugged in
or power is applied.
3.1.3 CONNECTOR
The drive may be interfaced directly to a standard 2.5” 2mm IDE socket connector or a
standard 2mm, 44-pin IDE ribbon cable. A separate power cable is not required since the
2mm socket or ribbon cable connector supplies both signals and power. See drawing below
for pin 1 location. Care should be taken when installing the AT2515 into the system, as
misalignment can permanently damage the drive interface connector or electronics.
Figure 1 - Drive Connector
2.5” Bulldog User Guide April 10, 2006 page 5 of 14
3.1.4 MOUNTING
The AT2515 may be mounted in any orientation. A total of eight bottom and eight side
mounting holes are available for installation. The mounting holes require M3 screws with a
maximum depth of 5 mm.
The diagram given below is valid for all capacities of the AT2515 drive. The outline
dimensions are 2.75” (69.85 mm) wide, 3.94” (100.2mm) long, and 0.315” (8.00mm) tall.
Please refer to the following drawing for dimensions and mounting hole locations
Figure 2 - Mechanical Dimensions
3.1.5 COMPUTER SETUP
To be recognized by the computer, the drive translation information must typically be entered
into the System Setup or CMOS Setup utility. For non-PC compatible computers, this may not
apply. The AT2515 supports automatic detection and configuration if offered by the BIOS. If
the drive configuration must be manually entered, select drive type USER and use the table
below to determine proper setup parameters. Automatic CHS translation and LBA mode is
supported. Note that a MB is equal to 1024*1024 bytes.
2.5” Bulldog User Guide April 10, 2006 page 6 of 14
Drive Type Physical
Capacity
Cylinders
Heads
Sectors Available
Capacity
AT2515-128 128 MB 977 8 32 122 MB
AT2515-256 256 MB 980 16 32 245 MB
AT2515-384 384 MB 745 16 63 366 MB
AT2515-512 512 MB 993 16 63 489 MB
AT2515-768 768 MB 1489 16 63 732 MB
AT2515-1024 1024MB 1986 16 63 977 MB
AT2515-2048 2048MB 3969 16 63 1953 MB
AT2515-3072 3072MB 5953 16 63 2930 MB
AT2515-4096 4096MB 7937 16 63 3906.5 MB
AT2515-6144 6144MB 11628 16 63 5723.2 MB
AT2515-8192 8192MB 15504 16 63 7630.9 MB
3.1.6 PARTITION
The drive must be partitioned using the system’s FDISK utility. For operating systems other
than DOS, please refer to your OS operating guides. Note that changing the partition
information will erase all data currently on the drive. Refer to your OS manual for information
regarding partitioning a hard disk.
3.1.7 FORMAT
The AT2515 is low-level formatted at the factory, which establishes the 512-byte sector size.
A high-level format is required after the partition has been established on the drive. Refer to
your OS manual for information regarding hard disk drive format procedures.
3.2 JUMPERS
The following diagram illustrates the location of the drive configuration jumpers on the AT2515.
The jumpers control the drive selection - master, slave or cable select. The jumper required is
a 2-pin vertical header on 2mm centers.
2.5” Bulldog User Guide April 10, 2006 page 7 of 14
Figure 3 - Configuration Jumpers
3.2.1 MASTER/SLAVE
The master/slave jumper allows the drive to be configured as either master or slave.
Installing the jumper allows the drive to be configured as a slave. With the jumper off, the drive
is configured as a master.
3.2.2 CABLE SELECT
2.5” Bulldog User Guide April 10, 2006 page 8 of 14
The Cable Select jumper allows the drive to be configured as a master or slave through the
IDE cable. A maximum of two drives may only be connected to one standard IDE cable.
Connecting the drive to the end of the cable configures the drive to be a master (DOS drive C:)
and connecting the drive to the middle connector of the cable configures the drive for a slave
(DOS drive D:).
With the Cable Select jumper off, the drive to uses the master/slave jumper for drive
configuration.
3.2.3 FACTORY DEFAULT
The factory default configuration is as the master drive with no jumpers installed.
3.3 IDE INTERFACE
The AT2515 uses a 44-pin 2mm connector mounted on the PCB to create both a power and
signal connection to the host. Maximum cable length is 18 inches. Recommended cable
length is 12 inches or less, especially if advanced PIO transfer modes are used.
3.3.1 IDE CONNECTOR ADAPTER
An adapter or interposer for converting the 2mm IDE connector to a standard 40-pin 0.100”
IDE connector is available from the factory. Order part number 153264-002. The adapter
converts the drive 44-pin 2mm connector to a standard 40-pin 0.100” connector. Power
arrives via a 4-pin Amp power header (EI series) identical to the connector used to supply
power to 3.5-inch floppy drives. To convert the 4-pin Amp power connector to a standard 4-
pin AT power connector, an ATA power cable adapter, part number 153273-002, is included.
2.5” Bulldog User Guide April 10, 2006 page 9 of 14
Figure 4 - IDE Adapter Board
3.3.2 IDE CONNECTOR PINOUT
Figure 5 - IDE Connector
2.5” Bulldog User Guide April 10, 2006 page 10 of 14
The following table depicts the 44-pin, 2mm-signal cable interface pinout.
PIN SIGNAL PIN SIGNAL
1 RESET- 2 GND
3 DATA7 4 DATA8
5 DATA6 6 DATA9
7 DATA5 8 DATA10
9 DATA4 10 DATA11
11 DATA3 12 DATA12
13 DATA2 14 DATA13
15 DATA1 16 DATA14
17 DATA0 18 DATA15
19 GND 20 KEY (NO PIN)
21 DMARQ 22 GND
23 IOW- 24 GND
25 IOR- 26 GND
27 IOCHRDY 28 CSEL
29 DMACK- 30 GND
31 IRQ 32 IOCS16-
33 ADDR1 34 PDIAG-
35 ADDR0 36 ADDR2
37 CS0- 38 CS1-
39 DASP- 40 GND
41 +5VOLTS 42 +5VOLTS
43 GND 44 RESERVED
4. OPERATION
4.1 ECC
The IDE controller utilizes a 72-bit Reed-Solomon Error Detection Code (EDC) and Error
Correction Code (ECC), which provides the following error immunity for each 512-byte block of
data:
1. Corrects up to three random 12-bit symbol errors.
2. Corrects single bursts up to 25 bits.
4.2 WEAR OUT
The time to failure can be logically calculated in hours using the following formula.
# Flash Chips * # Blocks *Re-programming Cycles * Area Rate
Wear Out = ------------------------------------------------------------------------------------
Average Block Programming Rate per hour (Block = 16Kbyte)
Note:The program area is the area that is not changed once it has been programmed. The
remainder of the drive is thus considered “Reprogrammable”. In the case where 64
Kbytes (128 sectors) are written every minute into an area occupying 30% of a 512 MB
disk (1 Gbit x 4 chips), the MTBF is calculated as shown below:
Indice
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