DATA TECHNOLOGY CORPORATION
===========================

   DTC5150BX

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 8-bit, ISA

   Size: Full-length, full-height card

   Hard drives supported: Two MFM ST506/412

   Floppy drives supported: None

<gopher://bitreich.org/I/th99/c/C-D/20060-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                  |    Location    |
   |-------------------------------------------+----------------|
   | 34-pin control cable connector-hard drive |       J1       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 0       |       J2       |
   |-------------------------------------------+----------------|
   | 20-pin data cable connector-drive 1       |       J3       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Location | Setting |
   |---------------------------------------+----------+---------|
   |>> | Sector size is set to 512         |    W1    | closed  |
   |   | (Jumpers are hard wired)          |          |         |
   |   |                                   |    W2    |  open   |
   |---+-----------------------------------+----------+---------|
   |>> | BIOS address is C800 (This jumper |    W5    | closed  |
   |   | is hard wired)                    |          |         |
   |---+-----------------------------------+----------+---------|
   |>> | BIOS enabled                      |    W6    | closed  |
   |---+-----------------------------------+----------+---------|
   |   | BIOS disabled                     |    W6    |  open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      I/O PORT ADDRESS                      |
   |------------------------------------------------------------|
   |       Address       |        W3         |        W4        |
   |---------------------+-------------------+------------------|
   |>> |      320h       |      closed       |      closed      |
   |---+-----------------+-------------------+------------------|
   |   |      324h       |       open        |      closed      |
   |---+-----------------+-------------------+------------------|
   |   |      328h       |      closed       |       open       |
   |---+-----------------+-------------------+------------------|
   |   |      32Ch       |       open        |       open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          BIOS DRIVE TYPE TABLE FOR THE BXD05 BIOS          |
   |------------------------------------------------------------|
   |     Cap./Hds./      |  SW1/3  |  SW1/4  |  SW1/7  | SW1/8  |
   |      Cyls./WPC      |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  5MB / 2 / 306 / 0  |   on    |   on    |   on    |   on   |
   |---------------------+---------+---------+---------+--------|
   | 26MB / 8 / 375 / 0  |   off   |   on    |   on    |   on   |
   |---------------------+---------+---------+---------+--------|
   |  15MB / 6 / 306 /   |   on    |   off   |   on    |   on   |
   |         256         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   | 10MB / 4 / 306 / 0  |   off   |   off   |   on    |   on   |
   |---------------------+---------+---------+---------+--------|
   | 5MB / 2 / 306 / 306 |   on    |   on    |   off   |   on   |
   |---------------------+---------+---------+---------+--------|
   |  28MB / 5 / 640 /   |   off   |   on    |   off   |   on   |
   |         640         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   | 20MB / 8 / 306 / 0  |   on    |   off   |   off   |   on   |
   |---------------------+---------+---------+---------+--------|
   |    Reserved for     |   off   |   off   |   off   |   on   |
   |    Non-standard     |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  18MB / 4 / 512 /   |   on    |   on    |   on    |  off   |
   |         256         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  27MB / 6 / 512 /   |   off   |   on    |   on    |  off   |
   |         256         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  10MB / 2 / 612 /   |   on    |   off   |   on    |  off   |
   |         128         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  22MB / 4 / 640 /   |   off   |   off   |   on    |  off   |
   |         256         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  18MB / 3 / 697 /   |   on    |   on    |   off   |  off   |
   |         697         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  30MB / 5 / 697 /   |   off   |   on    |   off   |  off   |
   |         697         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  33MB / 6 / 640 /   |   on    |   off   |   off   |  off   |
   |         256         |         |         |         |        |
   |---------------------+---------+---------+---------+--------|
   |  Split Drive Mode   |   off   |   off   |   off   |  off   |
   |       Setting       |         |         |         |        |
   |------------------------------------------------------------|
   |   Note:SW1/3, SW1/4, SW1/7, and SW1/8 set the type for     |
   |   Drive 1, and SW1/1, SW1/2, SW1/5, and SW1/6 set the type |
   |   for Drive 2                                              |
   +------------------------------------------------------------+