M X L - 1 0 5 - I I I   M O B I L E M A    MAXTOR
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 PCMCIA TYPE III       Cylinders    1254|  802|     |
Capacity form/unform   105/      MB        Heads           4|    8|     |
Seek time   / track  19.0/ 6.0 ms          Sector/track     |   32|     |
Controller           PCMCIA / ATA          Precompensation
Cache/Buffer            32 KB              Landing Zone
Data transfer rate    2.100 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 70
Power: sleep          0.3 W     Humidity     %         5 90    |      5 90
       standby        1.0 W     Altitude    km    -0.060  2.500|
       idle               W     Shock        g       100       |    300
       seek               W     Rotation   RPM      4464
       read/write     2.0 W     Acoustic   dBA        34
       spin-up        3.5 W     ECC        Bit   ON THE FLY,REED SOLOMON
                                MTBF         h     300000
                                Warranty Month        12
Lift/Lock/Park     YES          Certificates     CSA,FCC,TUV,UL1950,VDE



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MAXTOR   MXL SERIES  PRODUCT MANUAL PART #1226 P4 303-651-6000

                                           10.0 Min
                                          +-++
     +- +-----------------------+------------+
     |  |                       +---------+  X
     |  |                                 |  X
     |  |                                 |  X
 54.0+  |                                 |  X
     |  |                                 |  X
 0.10|  |                                 |  X
     |  |                                 |  X
     |  |                                 |  X
     |  |                        +--------+  X
     +- +------------------------+-----------+

        +------------------+-----------------+
                    85.6   0.2

     +  +---------------------------------+
 10.5+  |                                 +--+
 + 0 +  +------------------------------------+
 - 0.05                                   ++-+
                                         10.0 Min



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                      J   U   M   P   E   R   S
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MAXTOR   MXL SERIES  PRODUCT MANUAL PART #1226 P4 303-651-6000

 Introduction
 ------------
 Maxtor MXL Series PCMCIA disk drive are 1.8" random access storage
 devices which have a PCMCIA Type form factor and incorporate both the
 PCMCIA 2.0 compatible interface and the 68-pin ATA interface.
 THE DRIVE WILL AUTOMATICALLY CONFIGURE TO THE PROPER INTERFACE WHEN
 INSERTED IN A SYSTEM.



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                      I   N   S   T   A   L   L
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MAXTOR   MXL SERIES  PRODUCT MANUAL PART #1226 P4 303-651-6000

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

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

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

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


 Recommended Mounting Configuration
 ----------------------------------
 Maxtor MXL Series drive design allows greater shock tolerance than
 that afforded by larger, heavier drives. The drive may be mounted
 within a host system at any attitude. Allow adequate ventilation to
 the drive to ensure reliable operation.


 Air Filtration System
 ---------------------
 All MXL Series drives are designed to operate in a typical mobile
 computing environment with minimum environmental control. Over the
 life of the drive, a filter and breather element maintain a clean
 environment to the heads and disks.


 Drive Mechanism
 ---------------
 A sensorless, 12-pole brushless DC direct drive motor with hydro
 dynamic bearings rotates the spindle at 4,464 RPM ( 0.25%).


 Interface Connector
 -------------------
 MXL Series drives insert into a PCMCIA 2.0 Type III socket or a
 68-pin ATA connector. The drive socket is keyed to prevent inverted
 insertion. The host socket must be capable of providing sufficient
 power.

  +---+---+--------------------------+-----------------------------+
  |Pin|I/O|PCMCIA  Memory            |PCMCIA  I/O                  |
  +---+---+--------------------------+-----------------------------+
  | 01|   |GND     Ground            |GND     Ground               |
  +---+---+--------------------------+-----------------------------+
  | 02|I/O|D3      Data Bit 3        |D3      Data Bit 3           |
  +---+---+--------------------------+-----------------------------+
  | 03|I/O|D4      Data Bit 4        |D4      Data Bit 4           |
  +---+---+--------------------------+-----------------------------+
  | 04|I/O|D5      Data Bit 5        |D5      Data Bit 5           |
  +---+---+--------------------------+-----------------------------+
  | 05|I/O|D6      Data Bit 6        |D4      Data Bit 6           |
  +---+---+--------------------------+-----------------------------+
  | 06|I/O|D7      Data Bit 7        |D3      Data Bit 7           |
  +---+---+--------------------------+-----------------------------+
  | 07|I  |CE1-    Card Enable       |CE1-    Card Enable          |
  +---+---+--------------------------+-----------------------------+
  | 08|I  |A10     Address Bit 10    |A10     Address Bit 10       |
  +---+---+--------------------------+-----------------------------+
  | 09|I  |OE-     Output Enable     |OE-     Output Enable        |
  +---+---+--------------------------+-----------------------------+
  | 10|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 11|I  |A9      Address Bit 9     |A9      Address Bit 9        |
  +---+---+--------------------------+-----------------------------+
  | 12|I  |A8      Address Bit 8     |A8      Address Bit 8        |
  +---+---+--------------------------+-----------------------------+
  | 13|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 14|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 15|I  |WE-     Write Enable      |WE1     Write Enable         |
  +---+---+--------------------------+-----------------------------+
  | 16|O  |RDY/BSY Ready/Busy        |IREQ-   Interrupt Request    |
  +---+---+--------------------------+-----------------------------+
  | 17|I  |Vcc                       |Vcc                          |
  +---+---+--------------------------+-----------------------------+
  | 18|I  |N/U     Not Used          |N/U     Not Used             |
  +---+---+--------------------------+-----------------------------+
  | 19|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 20|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 21|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 22|I  |A7      Address Bit 7     |A7      Address Bit 7        |
  +---+---+--------------------------+-----------------------------+
  | 23|I  |A6      Address Bit 6     |A6      Address Bit 6        |
  +---+---+--------------------------+-----------------------------+
  | 24|I  |A5      Address Bit 5     |A5      Address Bit 5        |
  +---+---+--------------------------+-----------------------------+
  | 25|I  |A4      Address Bit 4     |A4      Address Bit 4        |
  +---+---+--------------------------+-----------------------------+
  | 26|I  |A3      Address Bit 3     |A3      Address Bit 3        |
  +---+---+--------------------------+-----------------------------+
  | 27|I  |A2      Address Bit 2     |A2      Address Bit 2        |
  +---+---+--------------------------+-----------------------------+
  | 28|I  |A1      Address Bit 1     |A1      Address Bit 1        |
  +---+---+--------------------------+-----------------------------+
  | 29|I  |A0      Address Bit 0     |A0      Address Bit 0        |
  +---+---+--------------------------+-----------------------------+
  | 30|I/O|D0      Data Bit 0        |D0      Data Bit 0           |
  +---+---+--------------------------+-----------------------------+
  | 31|I/O|D1      Data Bit 1        |D1      Data Bit 1           |
  +---+---+--------------------------+-----------------------------+
  | 32|I/O|D2      Data Bit 2        |D2      Data Bit 2           |
  +---+---+--------------------------+-----------------------------+
  | 33|O  |WP      Write Protect     |IOIS16- IO Port is 16 bit    |
  +---+---+--------------------------+-----------------------------+
  | 34|   |GND     Ground            |GND     Ground               |
  +---+---+--------------------------+-----------------------------+
  | 35|   |GND     Ground            |GND     Ground               |
  +---+---+--------------------------+-----------------------------+
  | 36|O  |CD1-    Card Detect       |CD1-    Card Detect          |
  +---+---+--------------------------+-----------------------------+
  | 37|I/O|D11     Data Bit 11       |D11     Data Bit 11          |
  +---+---+--------------------------+-----------------------------+
  | 38|I/O|D12     Data Bit 12       |D12     Data Bit 12          |
  +---+---+--------------------------+-----------------------------+
  | 39|I/O|D13     Data Bit 13       |D13     Data Bit 13          |
  +---+---+--------------------------+-----------------------------+
  | 40|I/O|D14     Data Bit 14       |D14     Data Bit 14          |
  +---+---+--------------------------+-----------------------------+
  | 41|I/O|D15     Data Bit 15       |D15     Data Bit 15          |
  +---+---+--------------------------+-----------------------------+
  | 42|I  |CE2-    Card Enable       |CE2-    Card Enable          |
  +---+---+--------------------------+-----------------------------+
  | 43|I  |N/U     Not Used          |N/U     Not Used             |
  +---+---+--------------------------+-----------------------------+
  | 44|I  |N/U     Not Used          |IORD-   IO Read              |
  +---+---+--------------------------+-----------------------------+
  | 45|I  |N/U     Not Used          |IOWR-   IO Write             |
  +---+---+--------------------------+-----------------------------+
  | 46|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 47|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 48|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 49|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 50|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 51|I  |Vcc                       |Vcc                          |
  +---+---+--------------------------+-----------------------------+
  | 52|I  |N/U     Not Used          |N/U     Not Used             |
  +---+---+--------------------------+-----------------------------+
  | 53|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 54|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 55|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 56|I  |N/U     Not Used - HiZ    |N/U     Not Used - HiZ       |
  +---+---+--------------------------+-----------------------------+
  | 57|I  |N/U     Not Used          |N/U     Not Used             |
  +---+---+--------------------------+-----------------------------+
  | 58|I  |RESET   Card Reset        |RESET   Card Reset           |
  +---+---+--------------------------+-----------------------------+
  | 59|O  |WAIT-   Extend Bus Cycle  |WAIT-   Extend Bus Cycle     |
  +---+---+--------------------------+-----------------------------+
  | 60|O  |N/U     Not Used          |INPACK- Input Port ACK       |
  +---+---+--------------------------+-----------------------------+
  | 61|I  |REG-    Register Select   |REG-    Register Select      |
  +---+---+--------------------------+-----------------------------+
  | 62|O  |N/U     Not Used          |N/U     Not Used             |
  +---+---+--------------------------+-----------------------------+
  | 63|O  |N/U     Not Used          |STSCHG- Change Status        |
  +---+---+--------------------------+-----------------------------+
  | 64|I/O|D8      Data Bit 8        |D8      Data Bit 8           |
  +---+---+--------------------------+-----------------------------+
  | 65|I/O|D9      Data Bit 9        |D9      Data Bit 9           |
  +---+---+--------------------------+-----------------------------+
  | 66|I/O|D10     Data Bit 10       |D10     Data Bit 10          |
  +---+---+--------------------------+-----------------------------+
  | 67|O  |CD2-    Card Detect       |CD2-    Card Detect          |
  +---+---+--------------------------+-----------------------------+
  | 68|   |GND     Ground            |GND     Ground               |
  +---+---+--------------------------+-----------------------------+

  -------------+-----------------------------------------------------
  Signal Name  |Signal Description
  -------------+-----------------------------------------------------
  Address Bus  |PCMCIA Mode - (Memory and I/O) Signals A0 through A25
               |are the host address signals which select a Memory or
               |I/O register. A0 is not used in Word-Access Mode.
  -------------+-----------------------------------------------------
  Data Bus     |All modes - Signals D0 through D15 constiture the bi-
               |directional data bus.
  -------------+-----------------------------------------------------
  Card Enable  |PCMCIA Mode - (Memory and I/O) CE1 enables transfer
               |of even-numbered bytes; CE2, odd-numbered bytes.
  -------------+-----------------------------------------------------
  Output Enable|PCMCIA Mode - (Memory and I/O) The OE line is the
               |active-low signal used to gate Memory Read data from
               |the card.
  -------------+-----------------------------------------------------
  Write Enable |PCMCIA Mode - (Memory and I/O) The WE signal is used
               |to strobe Memory Write data into the card.
  -------------+-----------------------------------------------------
  Ready/Busy   |PCMCIA Memory Mode - the Ready/Busy signal is driven
               |low to indicate the card is busy and unable to accept
               |a Data Transfer operation.
  -------------+-----------------------------------------------------
  Interrupt    |PCMCIA I/O Mode - The Interrupt Request signal is
  Request      |asserted to indicate to the host that the card
               |requires host software service.
  -------------+-----------------------------------------------------
  Card Detect  |All Modes - The -CD1 and -CD2 signals provide
               |indication that a card is inserted.
  -------------+-----------------------------------------------------
  Write Protect|PCMCIA Memory Mode - The WP output signal reflects the
               |state of the card's Write Protect switch.
  -------------+------------------------------------------------------
  IOIS16 bit   |PCMCIA I/O Mode - The IOIS16 output signal is
  Port         |asserted when the IO Port being addressed is capable
               |of 16 bit access.
  -------------+-----------------------------------------------------
  REG          |PCMCIA Mode - (Memory and I/O) The -REG signal is
               |asserted to select an access to Attribute Memory or
               |I/O space.
  -------------+-----------------------------------------------------
  Status       |PCMCIA Memory Mode - not used
  Changed      |
               |PCMCIA I/O Mode - status changed is asserted to
               |indicate a change in state of RDY/BSY or Write Protect
  -------------+-----------------------------------------------------
  Reset        |PCMCIA Mode - the Reset signal clears the card
               |configuration registers and places the card in PCMCIA
               |Memory mode, active high.
  -------------+-----------------------------------------------------
  Wait         |PCMCIA Mode - (Memory and I/O) The WAIT signal may be
               |asserted by the card to insert Wait States into host
               |I/O cycles.
  -------------+-----------------------------------------------------
  I/O Read     |PCMCIA Memory Mode - not used.
               |
               |PCMCIA I/O Mode - The IORD signal enables data to the
               |host data bus for I/O mode register reads.
  -------------+-----------------------------------------------------
  I/O Write    |PCMCIA Memory Mode - Not used.
               |
               |PCMCIA I/O Mode - The IOWR strobes data from the host
               |data bus for I/O mode Register Writes.
  -------------+-----------------------------------------------------
  Input        |PCMCIA Memory Mode - Not Used.
  Acknowledge  |
               |PCMCIA I/O Mode - The input acknowledge is asserted
               |when the card can respond to Read Cycle at the address
               |asserted.
  -------------+-----------------------------------------------------



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                      F   E   A   T   U   R   E  S
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MAXTOR   MXL SERIES  PRODUCT MANUAL PART #1226 P4 303-651-6000


 Interface Connector
 -------------------
 MXL Series drives insert into a PCMCIA 2.0 Type III socket or a
 68-pin ATA connector. The drive socket is keyed to prevent inverted
 insertion. The host socket must be capable of providing sufficient
 power.

  +---+---+--------------------------+
  |Pin|I/O|ATA                       |
  +---+---+--------------------------+
  | 01|   |GND     Ground            |
  +---+---+--------------------------+
  | 02|I/O|D3      Data Bit 3        |
  +---+---+--------------------------+
  | 03|I/O|D4      Data Bit 4        |
  +---+---+--------------------------+
  | 04|I/O|D5      Data Bit 5        |
  +---+---+--------------------------+
  | 05|I/O|D6      Data Bit 6        |
  +---+---+--------------------------+
  | 06|I/O|D7      Data Bit 7        |
  +---+---+--------------------------+
  | 07|I  |CS0-    Chip Select 0     |
  +---+---+--------------------------+
  | 08|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 09|I  |ATA-    Select ATA Mode   |
  +---+---+--------------------------+
  | 10|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 11|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 12|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 13|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 14|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 15|I  |N/U     Not Used          |
  +---+---+--------------------------+
  | 16|O  |INTRQ   Interrupt Request |
  +---+---+--------------------------+
  | 17|I  |Vcc                       |
  +---+---+--------------------------+
  | 18|I  |N/U     Not Used          |
  +---+---+--------------------------+
  | 19|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 20|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 21|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 22|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 23|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 24|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 25|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 26|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 27|I  |A2      Address Bit 2     |
  +---+---+--------------------------+
  | 28|I  |A1      Address Bit 1     |
  +---+---+--------------------------+
  | 29|I  |A0      Address Bit 0     |
  +---+---+--------------------------+
  | 30|I/O|D0      Data Bit 0        |
  +---+---+--------------------------+
  | 31|I/O|D1      Data Bit 1        |
  +---+---+--------------------------+
  | 32|I/O|D2      Data Bit 2        |
  +---+---+--------------------------+
  | 33|O  |IOCS16- 16 Bit Transfer   |
  +---+---+--------------------------+
  | 34|   |GND     Ground            |
  +---+---+--------------------------+
  | 35|   |GND     Ground            |
  +---+---+--------------------------+
  | 36|O  |CD1-    Card Detect       |
  +---+---+--------------------------+
  | 37|I/O|D11     Data Bit 11       |
  +---+---+--------------------------+
  | 38|I/O|D12     Data Bit 12       |
  +---+---+--------------------------+
  | 39|I/O|D13     Data Bit 13       |
  +---+---+--------------------------+
  | 40|I/O|D14     Data Bit 14       |
  +---+---+--------------------------+
  | 41|I/O|D15     Data Bit 15       |
  +---+---+--------------------------+
  | 42|I  |CS1-    Chip Select 1     |
  +---+---+--------------------------+
  | 43|I  |N/U     Not Used          |
  +---+---+--------------------------+
  | 44|I  |IOR-    IO Read           |
  +---+---+--------------------------+
  | 45|I  |IOW-    IO Write          |
  +---+---+--------------------------+
  | 46|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 47|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 48|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 49|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 50|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 51|I  |Vcc                       |
  +---+---+--------------------------+
  | 52|I  |N/U     Not Used          |
  +---+---+--------------------------+
  | 53|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 54|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 55|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 56|I  |N/U     Not Used - HiZ    |
  +---+---+--------------------------+
  | 57|I  |N/U     Not Used          |
  +---+---+--------------------------+
  | 58|I  |RESET-  Drive Reset       |
  +---+---+--------------------------+
  | 59|O  |IOCHRDY Extend Bus Cycle  |
  +---+---+--------------------------+
  | 60|O  |DREQ    DMA Request       |
  +---+---+--------------------------+
  | 61|I  |DACK    DMA Acknowledge   |
  +---+---+--------------------------+
  | 62|O  |DASP-   Drive Active      |
  +---+---+--------------------------+
  | 63|O  |N/U     Not Used          |
  +---+---+--------------------------+
  | 64|I/O|D8      Data Bit 8        |
  +---+---+--------------------------+
  | 65|I/O|D9      Data Bit 9        |
  +---+---+--------------------------+
  | 66|I/O|D10     Data Bit 10       |
  +---+---+--------------------------+
  | 67|O  |CD2-    Card Detect       |
  +---+---+--------------------------+
  | 68|   |GND     Ground            |
  +---+---+--------------------------+

  -------------+-----------------------------------------------------
  Signal Name  |Signal Description
  -------------+-----------------------------------------------------
  Address Bus  |ATA Mode - Signals A0 through A25 are the host address
               |lines which select an ATA register to the drive.
               |Signals A3 through A25 are not used and are high
               |impedance.
  -------------+-----------------------------------------------------
  Data Bus     |All modes - Signals D0 through D15 constiture the bi-
               |directional data bus.
  -------------+-----------------------------------------------------
  Chip Select  |ATA Mode - Chip selects 0 selects command block
               |register addresses 1F0-1F7H. Chip Select 1 selects
               |control registers 3F6-3F7H.
  -------------+-----------------------------------------------------
  Output Enable|ATA Mode - This line selects ATA mode. At power on
               |reset, if this line remains low, the drive will
               |initialize in ATA mode. If this line ever goes high,
               |the drive will switch to the PCMCIA mode.
  -------------+-----------------------------------------------------
  Write Enable |ATA Mode - not used
  -------------+-----------------------------------------------------
  Interrupt    |ATA Mode - Interrupt is the most asserted when the
  Request      |disk requires attention.
  -------------+-----------------------------------------------------
  Card Detect  |All Modes - The -CD1 and -CD2 signals provide
               |indication that a card is inserted.
  -------------+-----------------------------------------------------
  IOIS16       |ATA Mode - Indication to the host that the 16 bit
               |data port has been assigned and the drive is prepared
               |to transfer a 16 bit data word.
  -------------+-----------------------------------------------------
  DMA          |ATA Mode - This signal is used with DREQ proc. DMA
  Acknowledge  |transfer to acknowledge receipt of data.
  -------------+-----------------------------------------------------
  Status       |ATA  Mode - not used
  Changed      |
  -------------+-----------------------------------------------------
  Reset-       |ATA Mode - reset signal from the host system, active
               |during power up and inactive thereafter. Active low.
  -------------+-----------------------------------------------------
  I/O Channel  |ATA Mode - this signal may be driven by the drive to
  Ready        |insert wait states into host I/O cycles.
  -------------+-----------------------------------------------------
  Drive Active |ATA Mode - signal that indicates if the drive is
               |active.
  -------------+-----------------------------------------------------
  I/O Read     |ATA Mode - Read strobe enables data from register on
               |drive onto the host data bus.
  -------------+-----------------------------------------------------
  I/O Write    |ATA Mode - Write strobe, the rising edge of which
               |clocks data from the data bus into a register on the
               |drive.
  -------------+-----------------------------------------------------
  DMA Request  |ATA Mode - This signal is used with DACK for data
               |transfers by asserting this signal, the drive
               |indicates that data is ready to be transferred to and
               |from the host.
  -------------+-----------------------------------------------------


 Interface Functional Description
 --------------------------------
 The MXL-105-III conforms to the PCMCIA 2.0 and the PCMCIA-ATA 1.0
 specification.

 When powered-up in the PCMCIA mode, the Card Information Structure is
 readable in PCMCIA attribute memory space. All addressing modes de-
 fined in the PCMCIA-ATA specifications are available. Addressing mode
 selection can be accomplished by writing the appropriate configura-
 tion registers in attribute memory space.

 When powered-up in ATA mode, the drive conforms to the 68-pin ATA
 mode as defined in the PCMCIA-ATA specification and the Small Form
 Factor disk drive specification.


 Sector Address Translation
 --------------------------
 The MXL-105-III features a Universal Translate Mode. In an AT-class
 system, the drive may be configured to any specified logical
 combination of cylinders, heads, and sectors (within the range of the
 drive's formatted capacity).

 The MXL-105-III powers-up in the Translate Mode:

 802 Cyl., 8 heads, 32 Sec.