
S T 3 5 4 4 A             F I L E P R O    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders    2805| 1023| 1048|
Capacity form/unform   528/      MB        Heads           4|   16|   16|
Seek time   / track  12.0/ 3.0 ms          Sector/track     |   63|   63|
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer           256 KB READ-AHEAD   Landing Zone
Data transfer rate    4.000 MB/S int       Bytes/Sector      512
                     10.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 60
Power: sleep          1.3 W     Humidity     %         8 80    |      8 80
       standby        1.4 W     Altitude    km    -0.061  4.500|        12.192
       idle           3.8 W     Shock        g         5       |     75
       seek           5.7 W     Rotation   RPM      4500
       read/write     4.8 W     Acoustic   dBA        40
       spin-up            W     ECC        Bit   32,ON THE FLY
                                MTBF         h     250000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,IEC380,UL1950,VDE



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CONNER   CFA-540A  PRODUCT MANUAL P/N 00548-001, REV. A MARCH 1994

  +---------------------------------------------------------+
  | +-+                                                     |XXJ4
  | | |HDA                                                  |xx1 Power
  | | |                                                     |XXJ2
  | | |                                                     |XX
  | +-+                                                     |XXI
  |                                                         |XXN
  |                                                         |XXT
  |                                                         |XXE
  |                                                         |XXR
  |                                                         |XXF
  |                                                         |XXA
  |+-+C/D                                                   |XXC
  || |A/C ATA/ISA                                           |XXE
  || |                                                      |  1
  || |                                                      |XXJ6
  |+-+                                                      |XX Power
  +---------------------------------------------------------+  1



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                      J   U   M   P   E   R   S
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CONNER   CFA-540A  PRODUCT MANUAL P/N 00548-001, REV. A MARCH 1994

 Jumper Setting
 ==============

 C/D Master/Slave Configuration
 ------------------------------
 CLOSED  Single Drive
 CLOSED  Master Drive
 OPEN    Slave Drive


 A/C Master/Slave Protocol
 -------------------------
 CLOSED  ATA/CAM master/slave mode
 OPEN    Conner master/slave mode

 All other pins are reserved!


 Master/Slave Configuration
 --------------------------
 When two drives are daisy-chained on the host interface, one must be
 designated at the master drive (C: drive) and one as the slave drive
 (D: drive). Commands from the host are written in parallel to both
 drives.

 When the C/D jumper on the drive is closed, the drive will assume the
 role of a master. When C/D is open, the drive will act as a slave. In
 single-drive configurations, C/D must remain in the closed (master)
 position.

 For each command sent from the host, the DRV bit in the drive/head
 register selects the master or the slave drive. When the DRV bit is
 reset (0), the master drive is selected, and when the DRV bit is set
 (1), the slave drive is selected.

 Once the drives receive the command, only the drive with jumper C/D
 set to the appropriate position will execute the command. For
 example, if the DRV bit is set, only the slave drive (jumper C/D
 open) will execute the command.

 NOTE
 If the command is a diagnostic command, both drives will execute the
 command and the slave will report its status to the master via the
 Host PDIAG signal.

 Throughout this manual, drive selection always refers to the state of
 the DRV bit and the position of the C/D jumper.

 The drive supports two master/slave modes via the A/C jumper. When
 A/C is open, ATA/CAM master/slave mode is selected. When A/C is
 closed, Conner master/slave mode is selected.


 Supported Master/Slave Modes
 ----------------------------
 There are three different master/slave methods that Conner supports.

 - ISA Original

 - Conner

 - ATA/CAM

 Of these three methods, the drive supports all except ISA/Original
 mode, with which is compatible.

 NOTE
 The ATA/CAM master/slave method is not compatible with the other two
 methods. The Conner mode is backward-compatible to the ISA Original
 mode, but is not compatible with the other.

 These three methods are explained in the following sections. For
 signals followed by a ' ', activate means go low and deactivate means
 go high.


 ISA Original Master/Slave
 -------------------------
 The signals used for master/slave operation and determination are
 Host DASP  and Host PDIAG .

 Host DASP  can be used to:

  - drive an activity LED

  - indicate that the slave drive is present to the master

 The Host PDIAG  is used to indicate that the slave has passed
 diagnostics both at power-on reset (POR) and when the diagnostic
 command is issued.

 At power-on time, the slave drive activates Host PDIAG  and Host
 DASP . Host PDIAG  remains activated from POR until a diagnostic
 command is issued by the host. Once a diagnostic is issued by the
 host, the slave deactivates Host PDIAG  until either:

  - the slave successfully completes the diagnostic command

  - the host issues a reset

 There are no real timing constraints on Host PDIAG  and Host DASP .
 At POR, they are both activated within a second or two. When the
 diagnostic command is issued by the host, the slave inactivates Host
 PDIAG  within 100-200 microseconds and is required to reactivate it
 within 5 seconds (the only timing constraint) if it successfully
 completes the command.

 This scheme works fairly well except for two problems:

 - There is no way to tell when the slave becomes ready. If the slave
   becomes ready much later than the master, the slave will miss any
   command that are issued before it goes not busy because the host
   only polls the master to see if the "controller" is ready.

 - In a two-drive configuration, the Host DASP  line is not available
   to drive a drive activity indicator.

 In this mode of master/slave, master/slave re-configures with either
 a hardware or software reset. A hardware reset is either a POR or
 host reset.

 This version of master/slave is present on generations 1, 2, and 3
 of Conner drives.


 Conner Master/Slave
 -------------------
 To remendy the problem of the host not knowing when the slave was
 ready, Conner developed a backward-compatible solution, which we call
 Conner Master/Slave.

 In Conner Master/Slave, the use of the Host PDIAG  signal has been
 changed slightly during reset so that the slave will indicate when it
 will go not busy. Its use in the diagnostic command has not been
 changed.

 During POR or any host reset, the slave drive activates Host PDIAG
 within 1ms. The master drive waits slightly longer that 1 ms for
 Host PDIAG  to be activated before it determines that no slave is
 present. The slave then deactivates Host PDIAG  when it is ready. The
 master waits:

 - up to 14 seconds for the slave to deactivate Host PDIAG on either
   a POR or a host reset

 - 450 ms for the slave to deactivate Host PDIAG  on a host software
   reset

 If the master times out, it goes not busy.

 In this mode of master/slave, master/slave re-configures with either
 a hardware or software reset. A hardware reset is either a Power On
 Reset (POR) or host bus reset.

 This solution was implemented in generations 4 and greater of Conner
 drives.


 ATA/CAM Master/Slave
 --------------------
 This industry-standard master/slave solution was developed by the CAM
 shortly after the development of the Conner Master/Slave. The
 polarity of Host PDIAG  is opposite that of the Conner solution and
 this is what makes this master/slave scheme incompatible with the
 Conner scheme.

 At power-on time, the slave deactivates Host PDIAG  and then
 activates Host DASP  within 1 ms of either POR or host reset. Host
 DASP  activate indicates that a slave is present. The slave
 activates Host PDIAG  when it is ready to accept commands or after 30
 seconds. The drive will inactivate Host DASP  when it receives the
 first command or after 30 seconds, whichever occurs first. This
 period is reduced to 450ms for a software reset. A hardware reset is
 either a POR or host bus reset.

 This solution was implemented in generations 4.5 and greater of
 Conner drives and is selectable with the A/C jumper or the CAM bit in
 the feature word.



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                      I   N   S   T   A   L   L
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CONNER   CFA-540A  PRODUCT MANUAL P/N 00548-001 REV. A MARCH 1994

 Notes on Installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+

 The drive will operate in all axis (6 directions).


 Mounting the Drive
 ------------------
 You can mount the drive either vertically or horizontally. The drive
 will meet all performance specifications when mounted at any orienta-
 tion.

 CAUTION
 The surface(s) on which you mount the drive should be flat and
 paralled to prevent uneven pressure on the drive. Mounting the drive
 on an uneven surface could cause the drive's base to deform, degrad-
 ing drive performance.

 CAUTION
 When using the side mounting holes, verify the screw length to ensure
 clearance from the drive's printed circuit board before tightening
 the screw.


 Signal Levels
 -------------
 All signal levels are TTL compatible. A logic "1" is > 2.0 Volts. A
 logic "0" is from 0.00 Volts to 0.70 Volts.


 Read/Write Heads and Disks
 --------------------------
 Data is recorded on 95mm diameter disks through 3370-type thin film
 heads.


 The CFA540A contains:

 - two disks with two data surfaces each and four read/write heads

 At power-down, the heads are automatically retracted to the inner
 diameter of the disk and are latched and parked on a landing zone
 that is inside the data tracks.


 Data and Power Connections
 --------------------------
 The drive has a single 40-pin data connector, as well as an auxiliary
 connector which is reserved for factory or evaluation use.

 The drive has a standard 4-pin power connector and may optionally
 have a 3-pin connector, only one of which should be used at a time.

 The drive also has a jumper blcok located nect to the auxiliary
 connector which can be set to specify drive operational parameters.


 Attaching a Data Cable to the Drive
 -----------------------------------
 Attach the data cable from the host to the Task File Interface
 connector.

 CAUTION
 Do not route the data/power cable next to the drive PCB or any other
 high frequency or large current switching signals. Improper drive
 operation can result from improper cable routing.

 The recommended mating connector for the Task File Interface is
 Molex P/N 15-47-5401 or equivalent. You may daisy-chain two drives on
 this connector. The maximum cable length is 18 inches.


 Power Connector
 ---------------
 The drive has a standard 4-pin DC power connector and may have an
 optional, smaller, 3-pin connector. Power must only be supplied at
 one source.

 4-Pin Power and pin connector assignments
 -------------------+
 --+  +------------+|  pin 1    +12 Volts
   |  | 4  3  2  1 ||  pin 2    GND
  -+  +------------+|  pin 3    GND
  ------------------+  pin 4    + 5 Volts


 3-Pin Power and pin connector assignments
 ----------------+
 --+  +---------+|  pin 1    + 5 Volts
   |  | 1  2  3 ||  pin 2    +12 Volts
  -+  +---------+|  pin 3    GND
 ----------------+

 The mating connector for the 4 pin connector is AMP 1-480424-0
 (housing) and AMP 60619-4 (loose piece) or 61117-4 (strip) contacts.

 The mating connector for the 3-pin connector is Molex series 54-84
 (header), Molex part number 39-01-0033 (housing), and terminal part
 number 39-00-0031 (loose) or 39-00-0023 (strip).



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                      F   E   A   T   U   R   E  S
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CONNER   CFA-540A  PRODUCT MANUAL P/N 00548-001 REV. A, MARCH 1994

 Overview of the Drives
 ----------------------
 The Conner Filepro Advantage CFA540A is a high-performance,
 low-profile hard disk drives that are designed to operate with an IBM
 PC/AT or equivalent host computer system in translate mode.

 The drive provides these features:

 - High performance rotary voice coil actuator with embedded servoing
   eliminate the need for T-cal

 - 1/7 Run length limited code

 - High shock resistance

 - Sealed HDA

 - Automatic actuator latch against inner stop upon power-down

 - Microprocessor-controlled diagnostics routines that are auto-
   matically executed at start-up.

 - 256KB segmentable cache buffer

 - Read Look Ahead and selectable Write Caching

 - Automatic error correction and retries, ECC on the fly

 - supports ATA Standard PIO Mode 3 and DMA Mode 1

 - Block size 512 bytes

 - supports both CHS and LBA addressing

 - Allows daisy-chaining up to two drives on the AT interface

 - Auto-Translate (Universal Translate)

 - 4-byte ECC diagnostic check in read/write

 The drive supports either of the following Master/Slave protocol
 standards:

 - ATA/CAM (AT Attachment/Common Access Method)

 - ISA/Conner (Industrie-Standard Architecture)


 Firmware
 --------
 The drive's firmware includes a command set which the host uses to
 control the drive. The command set allows the host to request the
 following types of actions:

 - report drive status
 - seek a specific point on the disk
 - read and write data


 Universal Translate Mode
 ------------------------
 Conner has established a Universal Translate Mode which enables the
 user to configure the drive in an AT environment to any cylinder,
 head, and sector configuration desired. The translate configuration
 is limited only by the maximum capacity of the drive. Upon initial
 power up to the drive it will default to a configuration shown below:

          Cylinders        Heads       Sectors
 CFA540A    1048            16           63

 After the drive is ready, the host system may issue INIT DRIVE PARMS
 COMMAND (command code 91hex) to alter the translate configuration
 (number of heads and number of sectors per track). The drive will
 then:

 - calculate the total number of available logical tracks based upon
   the entered sector and head values

 - save the drive parameters in non-volatile memory for subsequent
   drive operations

 NOTE
 Many BIOS are limited to a maximum of 1024 cylinders. This can be
 manually entered into the User Defined parameter list. Feature bit 14
 can be set to force the drive to report 1024 cylinders for
 installation in systems in which the BIOS automatically set the drive
 parameters.

 Seek Times
 ----------

       +----------------------------------+--------+
       |         track to track      max. |   3 ms |
       +----------------------------------+--------+
       |               Average msec. read |  10,5  |
       |               Average msec. write|  11,5  |
       |               Average msec. max. |  20    |
       +----------------------------------+--------+
       |Latency                msec. avg. |   6.67 |
       +----------------------------------+--------+
       The timing is measured through the interface with the drive
       operating at nominal DC input voltages. The timing also assumes
       that:
             - BIOS and PC system hardware dependency have been
               subtracted from timing measurements.


       The average seek time is determined by averaging the seek time
       for a minimum of 1000 seeks of random length over the surface
       of the disk.


 Head Positioning Mechanism
 --------------------------
 The two read/write heads are supported by a mechanism coupled to a
 rotary voice coil actuator.


 Task File Interface Signal Connector Pin 28
 -------------------------------------------
 Pin 28 +Spindle Sync/Cable Select (I/O)
 Optional. Thi ssignal may optionally be used for functions.
 Some systems, however, may require this pin to be isolated because
 it was defined as ALE prior to the ATA specification.

 - Spindle Sync is a signal used by the drives which are interconnect
   on the same cable to synchronize their spindle rotation with each
   other.

 - Cable Select routes the C/D select to this spin. When set high,
   drive D: is selected; when set low, drive C: is selected.


 Error Correction
 ----------------
 The drive use a Reed-Solomon code to perform error detection and
 correction. For each 512-byte block, the software error correction
 polynominal is capable of correcting:

 - one error burst up to 22 bits

 - two error burst up to 11 bits each

 Single bursts of 11 bits or less are corrected on the fly (OTF) with
 no performance degradation.


 Execute Drive Diagnostic
 ------------------------
 Command Number: 90 hex

 Description
 This command performs the internal diagnostic tests implemented by
 the drive. The diagnostic tests are only executed upon receipt of
 this command.

 The drive sets BSY immediately upon of the command. If the drive is a
 master, the drive performs the diagnostic tests and saves the
 results. It then checks to see if a slave drive is present and waits
 up to 5 seconds for the slave to complete its diagnostics. If the
 slave successfully completes its diagostics, it asserts -HOST PDIAG.
 If unsuccessful, the master drive resets BSY in the Status register
 and generates an interrupt. The Error bit (ERR) is set in the Status
 register and the Error register is updated.

 The value in the Error register should be viewed as a unique 8-bit
 code and not as the single-bit flags defined previously. The inter-
 face registers are set to initial values except for the Error
 register.

 The table below details the codes in the Error register and a
 corresponding explanation.

 Error Code    Description
 01 hex        No error detected
 02 hex        Format device error
 03 hex        Sector buffer error
 8x hex        Slave drive failed

 Additional codes may be implemented at the manufacturer's option.

 NOTE
 If the slave drive fails diagnostics, the master drive shall "OR" 80
 hex with its own status and load that code into the Error register.
 If the slave drive passes diaagnostics or there is no slave drive
 connected, the master drive shall sect bit 7 of the Error register
 Task File to 0.


 Reliability
 -----------
 MTBF                     300,000 hours POH
 MTTR                     10 minutes typical
 Preventive Maintenance   None
 Component Design Life    5 years
 Start/Stop Cycles        40,000 minimum


 Safety Standard
 ---------------
 The drive is designed to comply with relevant product safety
 standards, including:

 - UL 478, 5th edition, Standard for Safety of Information Processing
   and Business Equipment, and UL 1950, Standard for Safety of
   Information Technology Equipment

 - CSA 22.2#220, Information Processing and Business Equipment,
   CSA 22.2#950, Safety of Electrically Energized Office Machines

 - IEC 380, Safety of Electrically Energized Office Machines, and
   IEC 950, Safety of Information Technology Equipment Including
   Electrical Business Equipment

 - VDE 0805, VDE 0805 TIEL 100, VDE 0806

 - Complies with FCC Class B, Part 15, Subpart J


