
C P - 4 0 2 4 A T    CONNER
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SUPERSLIMLINE    Cylinders     620|  615|     |
Capacity form/unform    22/      MB        Heads           2|    4|     |
Seek time   / track  29.0/ 8.0 ms          Sector/track   34|   17|     |
Controller           IDE / AT              Precompensation
Cache/Buffer             8 KB              Landing Zone
Data transfer rate    1.125 MB/S int       Bytes/Sector      512
                      3.375 MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 60
Power: sleep          0.4 W     Humidity     %         8 80    |      8 80
       standby        0.7 W     Altitude    km    -0.061  3.048|        12.192
       idle           1.5 W     Shock        g         5       |    100
       seek           2.0 W     Rotation   RPM      2913
       read/write     3.0 W     Acoustic   dBA        40
       spin-up        7.3 W     ECC        Bit   88,SPLIT
                                MTBF         h      50000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,IEC380,IEC435,IEC950,U...


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CONNER   CP4024  PRODUCT MANUAL 00501-035

  +---------------------------------------------------------+
  |                            +-E1A         44XX  E1++E3   |
  |           (SHOWN CLOSED) E2A-+             XX   ++++    |
  |      +------+                              XX    E2     |
  |      +------+                              XX           |
  |                                            .X           |
  |                                 TASK FILE  XX           |
  |                                            XX           |
  |                                            XX           |
  |                                              1          |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  +---------------------------------------------------------+







   (AT) Adapter Card Layout          J1
  +-------------------------XXXXXXXXX.XXXXXXXXX-------------+
  |O                              oo           1          O |
  |                                E1                       |
  |                                   E2oo oooE4          O |
  |                                        E3               |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                         |
  |                                                       O |
  |                                                         |
  |                                                       O |
  +-------------+           ++                      +-------+
                +-----------++----------------------+



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CONNER   CP4024  PRODUCT MANUAL 00501-035

 Jumper Settings
 ===============

 x = Factory default configuration


 Customer Options
 ----------------
 The drive has two sets of jumpers E1, E2, E3, near the interface
 connector of the drive and E1A, E2A, on the same board edge of the
 drive about midway down.

   - E1 jumpered to E2 connects -Host Active to an internal port.

   - E2 to E3 jumpers -Host Active to IO Channel Ready on the SH260.

   - E1A jumpered selects - Slave Present.
     E1A not jumpered selects single drive only.

   - E2A jumpered addressed drive as drive C.
 x - E2A not jumpered addressed drive as drive D.


 Power/Connector Pin Description
 -------------------------------
    +--------------------------------+
    | Interface Connector Power Pins |
    +-----------+--------------------+
    |     41    |   +5V LOGIC        |
    +-----------+--------------------+
    |     43    |   GND              |
    +-----------+--------------------+
    |     42    |   +5V Motor        |
    +-----------+--------------------+
    |     40    |   GND              |
    +-----------+--------------------+

 Note: Power should be separately supplied to the logic and motor
 power input pins to minimize cross coupling of noise to the drive
 electronics.


 ---------------------------------------------------------------------
 Jumper Setting Adapter Card
 ===========================

 Jumpers
 -------
 E1 and E3 always not installed
 E2 and E4 always installed

 Note: E3 and E4 are located in a straight line with a pin between
 them. Jumper installed refers to the pin jumpered to the center pin.


 Combinations of jumpers E2, E3 and E4 can be made to determine a
 correct configuration. An explanation of the jumpers follows:

   Jumper E2 enables or disables chip select 1 (CS1). Installed
   enables it.

   Jumper E3 will clear IRQ14 with deassertion of Host SLV/ACT.

   Jumper E4 will clear IRQ14 with a status read only.

 Care must be exercised with the routing of the power & signal cables.
 They should not be routed next to the drive PCB or other high
 frequency or large current switching signals. Improper drive opera-
 tion can result from improper cable routing.



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CONNER   CP4024  PRODUCT MANUAL 00501-035

 Notes on installation
 =====================

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

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

 Installation direction
 ----------------------
 The drive may be mounted in any attitude!


 Recommended Mounting Configuration
 ----------------------------------
 This drive is designed to be used in applications where the unit
 may experience shock and vibrations at greater levels than larger and
 heavier disk drives.

 The design features which allow greater shock tolerance are the use
 of rugged heads and media, a dedicated landing zone, closed loop
 servo positioning and specially designed motor and actuator
 assemblies.

 Eight base mounting points are provided to the customer. The drive is
 mounted using 6-32 x 3/16" max. screw insertion for the bottom or M3
 x .05-6H x 4 mm screws for the sides. The system integrator should
 allow ventilation to the drive to ensure reliable drive operation
 over the operating temperature range.

 For additional vibration isolation, an external suspension system
 may be used.


 Power Connectors
 ----------------
 DC power is provided on the 44 pin interface connector. The
 recommended mating connector is AMP part number 1-487620-9. DC power
 may also be supplied to the drive through 3 pins on the 12 pin Serial
 I/O connector. The recommended mating connector is Molex part number
 39-01-0033 utilizing Molex pins, part number 39-00-0031 or
 equivalent.

 Power is to be supplied at either the 44 pin connector or the 12 pin
 connector, but not both.


 Task File Interface Connector
 -----------------------------
 A 44 pin Task File Interface connector is mounted on the printed
 circuit board. The recommended mating connector is AMP part number
 1-487620-9 or equivalent. Two drives may be daisy chained together at
 this connector. The maximum cable length is two feet.


 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.


 Air Filtration System
 ---------------------
 The head-disk assembly is a sealed enclosure with an integral 0.3
 micro filter which maintains a clean environment for the heads and
 disks.


 Drive Mechanism
 ---------------
 A brushless DC direct drive motor rotates the spindle. The motor/
 spindle assembly is dynamically balanced to provide a minimal
 mechanical runout to the disks and to reduce vibration to the HDA. A
 dynamic brake is used to provide a fast stop to the spindle motor
 when power is removed, or upon intitiation of STANDBY MODE.


 Installation of the Drive and Adapter Card
 ------------------------------------------
  1. Remove power to the computer

  2. If another hard disk controller is installed, it is necessary to
     prevent it from responding to the addresses 1F0-7H and 3F6-7H.
     It is also necessary to ensure that the controller is
     electrically disconnected or tri-stated from IRQ14 of the mother-
     board bus. This may be done either by removing the board, by
     electrically disconnecting the signals from the interface, or by
     setting the jumpers of the board to select to disable the hard
     disk controller.

  3. Insert the board into any available card slot.

  4. Configure the Host adapter for the correct configuration of your
     computer BIOS.

     Adapter Card Jumpers   E1 and E3 always not installed
                            E2 and E4 always installed

     Note: E3 and E4 are located in a straight line with a pin between
           them, as shown below. Jumper in refers to the pin jumpered
           to the center pin.

                        E3     E4
                         o  o  o

  5. Connect power to the drive.

  6. Run the DOS FDISK program to establish DOS partitions.

     Note: DOS 3.2 and below have limitations of 32 megabytes unless
           software utility is used to overcome this.

  7. Run the DOS format program by typing "Format C:/S". The volume
     may be named with the addition of the "/V". The format will be
     completed and the system transferred if the "/S" option was used.
     If the "/V" option is used, the system will ask for a volume
     name.

  8. Files can then be copied to the C: drive from the floppy.

  9. When the system is rebooted, the system should boot from the hard
     drive (Drive C:) if the A: floppy drive is empty.


 Changing Between XT and AT
 --------------------------
 Conner AT/XT drives are capable of running on either AT or XT without
 any modifications. There is an interface pin provided to determine
 what interface (AT or XT) is to be active. To change between the two,
 change the level of the interface pin 44 and then issue either a
 software or a hardware reset or cycle power to the drive. If this
 method is used, it is possible on most versions of DOS to take a
 drive that has the DOS System on it and transfer it between an AT and
 XT machine.


 XT Evaluation Adapter Board
 ---------------------------
 Conner Peripherals has designed an adapter board for use in XT
 systems to aid in avaluation of the drive. The drive requires a 2764
 or equivalent disk BIOS or option ROM that is IBM compatible. Jumper
 E1, when jumpered, enables the ROM. The boards act as a pass-through
 to the embedded controller on the drive. If the ROM location is not
 used, code that directly talks to the drive must be written. Neither
 the ROM nor any drive code is currently supplied by Conner
 Peripherals.

 The drive will support DMA and responds to addresses 320h-323h. The
 drive will respond properly to commands issued by the Host to this
 address that are compatible with the IBM disk drive command set.
 There are additional commands that the Conner drive will support.


 Installation of the Drive and XT Adapter Card
 ---------------------------------------------
  1. Remove power to the computer

  2. If another hard disk controller is installed, it is necessary to
     prevent it from responding to the addresses 320-323.

  3. Insert the board into any available card slot.

  4. Configure the Host adapter for the correct configuration of your
     computer BIOS. Jumper E1 is installed if board BIOS location is
     to be used.

  5. Connect power to the drive.

  6. Run the DOS FDISK program (or equivqlent) to establish DOS
     partitions.

  7. Run the DOS format program by typing "Format C:/S". The volume
     may be named with the addition of the "/V". The format will be
     completed and the system transferred if the "/S" option was used.
     If the "/V" option is used, the system will ask for a volume
     name.

  8. Files can then be copied to the C: drive from the floppy.

  9. When the system is rebooted, the system should boot from the hard
     drive (Drive C:) if the A: floppy is empty.



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CONNER   CP4024  PRODUCT MANUAL 00501-035

 Key Features
 ------------
 The CP4024 is a high performance 3.5 inch low-profile (0.78") 21.4
 megabyte (formatted) disk drive with 29 ms seek time and is designed
 to operate on IBM PC/AT or PC/XT (or equivalent) in translate mode.
 The drive features low power requirements and high shock resistance,
 enabling battery operation in portable environments.

 Because the drive contains the AT Task File and XT Register Set
 within its control logic, it requires a simplified adapter board to
 operate. Conner Peripherals has developed an adapter board to be used
 in conjunction with the drive on an AT or equivalent system. It also
 requires a simplified XT adapter board.


 - Low power requirements, enabling battery operation in portable
   environments

 - .78" high

 - 5 Volt Only Power Requirement

 - High performance rotary voice coil actuator with embedded servo
   system

 - Two of seven run length limited code

 - Sealed HDA

 - Automatic actuator latch against inner stop upon power down.

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

 - Automatic error correction and retries

 - Block size 512 bytes

 - Emulates Task File and supports additional commands

 - Supports all XT and Additional Commands

 - Up to two drives may be daisy-chained on the AT interface and one
   drive on the XT

 - Translate mode (17 sectors, 4 heads, 615 cylinders) is supported


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

       +----------------------------------+--------+
       |         track to track      max. |   8 ms |
       +----------------------------------+--------+
       |               Average msec. max. |  29    |
       |               Average msec. max. |  50    |
       +----------------------------------+--------+
       |Latency                msec. avg. |  10.3  |
       +----------------------------------+--------+
  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.



 Functional Description
 ----------------------
 The CP4024 contains all necessary mechanical and electronic parts to
 interpret control signals, position the recording heads over the
 desired track, read and write data, and provide a contaminant free
 environment for the heads and disks.


 Read/Write and Control Electronics
 ----------------------------------
 One integrated circuit is mounted within the sealed enclosure in
 close proximity to the read/write heads. Its function is to provide
 head selections, read preamplification, and write drive circuitry.
 The read/write heads are supported by a mechanism coupled to the
 voice coil actuator.

 The single microprocessor controlled circuit card provides the
 remaining electronic functions which include:

        - Read/Write Circuitry
        - Rotary Actuator Control
        - Interface Control
        - Spin Speed Control
        - Dynamic Braking
        - Power Management

 The microprocessor performs diagnostics upon application of power. If
 an error is detected the drive will not come READY.

 At power down or the start of STANDBY MODE the heads are auto-
 matically retracted to the inner diameter of the disk and are latched
 and parked on a landing zone that is inside the data tracks.


 Read/Write Heads and Disks
 --------------------------
 Data is recorded on one 65mm diameter disk two miniature composite
 heads.


 Error Correction
 ----------------
 The disk performs internal error correction. The error correction
 polynominal is capable of correcting one error burst with a maximum
 of 8 bits per 512 byte block.


 Split ECC
 ---------
 The new generation of Conner driver feature a split sector with
 separate ECC's for each half of the sector's data field. This allows
 improved error correction performance. The first 245 bytes of the
 sector are written with their own ECC which allows for a correction
 of any single defect of up to 8 consecutive bits. The second 267
 bytes of a sector also have their own ECC. This allows for one ECC
 correction for each half of a sector, or up to two correction for
 per sector depending on placement of the defects.

 IBM diagnostics expect an uncorrectable error to be reported when
 there are two defects more than 8 bits apart. This will not happen if
 the defects are in different segments of the sector. In that case the
 improved correction capability will correct bot errors. Also, for
 most systems IBM only transfers 4 bytes of the syndrome on a Read
 Long. The CP4024 will return 512 bytes of data plus 7 bytes of ECC
 syndrome from the second segment in XT mode and in the AT mode.


 Error Codes
 -----------
 The following table list the error codes and types related to byte 0
 of the Sense Block after the Request Sense command.

 Type 0  (Drive) Error Codes
   0     No error
   1     No Index Signal
   2     No Seek Complete
   3     Write Fault Detect
   4     Drive not Ready
   6     No Track 0 after Recalibrate
   8     Seek in progress reported after Test Drive Ready

 Type 1  (Controller) Error Codes
   0     ECC error in the ID field
   1     Uncorrectable data error during a read
   2     Address Mark not found
   4     Sector not found
   5     Seek error. R/W head positioned on a wrong cylinder
   8     Correctable Data Field Error
   9     Bad Track flag found

 Type 2  (Command) Error Codes
   0     Invalid Command received from the Host
   1     Illigal disk address

 Type 3  (Miscellaneous) Error Codes
   0     RAM sector-buffer error detect during diagnostic
   1     Program memory checksum error
   2     ECC Polynomial Error


 Reliability and Maintenance
 ---------------------------
 MTBF                     50,000 hours POH
 MTTR                     10 minutes typical
 Preventive Maintenance   None
 Component Design Life    5 years


 Safety Standard
 ---------------
 Conner Peripherals disk drives are designed to comply with relevant
 product safety standards such as:

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

 - CSA 22.2#154, Data Processing Equipment and CSA 22.2#220, Inform-
   ation Processing and Business Equipment.

 - IEC 435 Safety Requirements for Data Processing Equipment, IEC 380,
   Safety of Electrically Energized Office Machines, and IEC 950,
   Safety of Information Technology Equipment Including Electrical
   Business Equipment.

 - VDE 0805 Equivalent to IEC 435, VDE 0805 TIEL 100, Equivalent to
   IEC 950, and VDE 0806, Equivalent to IEC 380.


 Evaluation Adapter Board
 ------------------------
 In order to facilitate evaluation and aid those manufacturers
 interested in quickly getting the disk drive running, Conner
 Peripherals has developed an adapter board to be used in conjunction
 with the drive on an AT or equivalent system. The drive requires no
 special driver program as it works with the existing AT Bios or
 equivalent. It is hoped that the interface will be incorporated into
 the motherboard of the AT device or on some other multi-function
 adapter. The artwork and Bill of Materials are available upon re-
 quest.


 Acoustic Noise
 --------------
 The sound pressure level will not exceed 40 dBA at a distance of 1
 meter from the drive.


