DIAMOND FLOWER, INC.
====================

   MU-440

   Card Type          Serial controller                           
   Chipset/Controller Unidentified UART                           
   I/O Options        Serial I/O ports (4)                        
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/C-D/50490-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |    Purpose    |   Location   |    Purpose    |  Location   |
   |---------------+--------------+---------------+-------------|
   | Serial port 3 |      J1      | Serial port 2 |     J3      |
   |---------------+--------------+---------------+-------------|
   | Serial port 4 |      J2      | Serial port 1 |     J4      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               COMPATIBLE MODE ADDRESS SELECT               |
   |------------------------------------------------------------|
   | Port 1  | Port 2 | Port 3 | Port 4 | SW1/1 | SW1/2 | SW1/3 |
   |  (J4)   |  (J3)  |  (J1)  |  (J2)  |       |       |       |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3F8h   |  2F8h  |  3E0h  |  3E8h  |  Off  |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3F8h   |  2F8h  |  2B0h  |  2B8h  |  On   |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3F8h   |  2F8h  |  1B0h  |  1B8h  |  Off  |  On   |  Off  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                EXPANDED MODE ADDRESS SELECT                |
   |------------------------------------------------------------|
   | Port 1  | Port 2 | Port 3 | Port 4 | SW1/1 | SW1/2 | SW1/3 |
   |  (J4)   |  (J3)  |  (J1)  |  (J2)  |       |       |       |
   |---------+--------+--------+--------+-------+-------+-------|
   |  280h   |  288h  |  290h  |  298h  |  On   |  On   |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  3E0h   |  3E8h  |  2E0h  |  2E8h  |  Off  |  Off  |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  2A0h   |  2A8h  |  2B0h  |  2B8h  |  On   |  Off  |  On   |
   |---------+--------+--------+--------+-------+-------+-------|
   |  1A0h   |  1A8h  |  2A0h  |  2A8h  |  Off  |  On   |  On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT SELECT                      |
   |------------------------------------------------------------|
   |    IRQ     |  SW1/4  |  SW1/5  |  SW1/6  | SW1/7  | SW1/8  |
   |------------+---------+---------+---------+--------+--------|
   |>> |  IRQ5  |   Off   |   Off   |   Off   |   On   |  Off   |
   |---+--------+---------+---------+---------+--------+--------|
   |   |  IRQ2  |   On    |   Off   |   Off   |  Off   |  Off   |
   |---+--------+---------+---------+---------+--------+--------|
   |   |  IRQ3  |   Off   |   On    |   Off   |  Off   |  Off   |
   |---+--------+---------+---------+---------+--------+--------|
   |   |  IRQ4  |   Off   |   Off   |   On    |  Off   |  Off   |
   |---+--------+---------+---------+---------+--------+--------|
   |   |  IRQ7  |   Off   |   Off   |   Off   |  Off   |   On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           PRIMARY PORT NORMAL/FORCED TRUE SELECT           |
   |------------------------------------------------------------|
   |   Setting   |     JP7/A     |     JP7/B     |    JP7/C     |
   |-------------+---------------+---------------+--------------|
   |   Normal    |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2  |
   |             |    closed     |    closed     |    closed    |
   |-------------+---------------+---------------+--------------|
   | Forced True |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3  |
   |             |    closed     |    closed     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PRIMARY PORT DTE/DCE SELECT                 |
   |------------------------------------------------------------|
   |                         Jumper JP8                         |
   |------------------------------------------------------------|
   |             DTE              |             DCE             |
   |------------------------------+-----------------------------|
<gopher://bitreich.org/I/th99/i/C-D/50490-2.png>
   |                      | [3][IMG]                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           SECOND PORT NORMAL/FORCED TRUE SELECT            |
   |------------------------------------------------------------|
   |   Setting   |     JP6/A     |     JP6/B     |    JP6/C     |
   |-------------+---------------+---------------+--------------|
   |   Normal    |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2  |
   |             |    closed     |    closed     |    closed    |
   |-------------+---------------+---------------+--------------|
   | Forced True |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3  |
   |             |    closed     |    closed     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 SECOND PORT DTE/DCE SELECT                 |
   |------------------------------------------------------------|
   |                         Jumper JP5                         |
   |------------------------------------------------------------|
   |             DTE              |             DCE             |
   |------------------------------+-----------------------------|
<gopher://bitreich.org/I/th99/i/C-D/50490-4.png>
   |                      | [5][IMG]                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |            THIRD PORT NORMAL/FORCED TRUE SELECT            |
   |------------------------------------------------------------|
   |   Setting   |     JP1/A     |     JP1/B     |    JP1/C     |
   |-------------+---------------+---------------+--------------|
   |   Normal    |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2  |
   |             |    closed     |    closed     |    closed    |
   |-------------+---------------+---------------+--------------|
   | Forced True |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3  |
   |             |    closed     |    closed     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 THIRD PORT DTE/DCE SELECT                  |
   |------------------------------------------------------------|
   |                         Jumper JP3                         |
   |------------------------------------------------------------|
   |             DTE              |             DCE             |
   |------------------------------+-----------------------------|
<gopher://bitreich.org/I/th99/i/C-D/50490-6.png>
   |                      | [7][IMG]                    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           FOURTH PORT NORMAL/FORCED TRUE SELECT            |
   |------------------------------------------------------------|
   |   Setting   |     JP2/A     |     JP2/B     |    JP2/C     |
   |-------------+---------------+---------------+--------------|
   |   Normal    |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2  |
   |             |    closed     |    closed     |    closed    |
   |-------------+---------------+---------------+--------------|
   | Forced True |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3  |
   |             |    closed     |    closed     |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 FOURTH PORT DTE/DCE SELECT                 |
   |------------------------------------------------------------|
   |                         Jumper JP4                         |
   |------------------------------------------------------------|
   |             DTE              |             DCE             |
   |------------------------------+-----------------------------|
<gopher://bitreich.org/I/th99/i/C-D/50490-8.png>
   |                      | [9][IMG]                    |
   +------------------------------------------------------------+