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

   MIO-550

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

   Data bus: 16-bit, ISA

   Size: Half-length, full-height card

   Hard drives supported:  Two IDE (AT) Interface drives

   Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
   drives

<gopher://bitreich.org/I/th99/c/C-D/20266-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                   |  Location   |
   |----------------------------------------------+-------------|
   | 2-pin connector-drive active LED             |     CN1     |
   |----------------------------------------------+-------------|
   | 34-pin data cable connector-floppy drive     |     CN2     |
   |----------------------------------------------+-------------|
   | 16-pin connector-game port                   |     CN3     |
   |----------------------------------------------+-------------|
   | 10-pin connector-serial port 2               |     CN4     |
   |----------------------------------------------+-------------|
   | 40-pin IDE (AT) Interface connector-internal |     CN5     |
   |----------------------------------------------+-------------|
   | DB-9 male connector-serial port 1            |     CN6     |
   |----------------------------------------------+-------------|
   | DB-25 female connector-parallel port         |     CN7     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function             |  Location  |  Setting   |
   |----------------------------------+------------+------------|
   |>> | Serial Port 1 (CN6) DMA      |    JP1     |    open    |
   |   | disabled                     |            |            |
   |---+------------------------------+------------+------------|
   |   | Serial Port 1 (CN6) DMA      |    JP1     |   closed   |
   |   | enabled                      |            |            |
   |---+------------------------------+------------+------------|
   |>> | Serial Port 2 (CN4) DMA      |    JP1A    |    open    |
   |   | disabled                     |            |            |
   |---+------------------------------+------------+------------|
   |   | Serial Port 2 (CN4) DMA      |    JP1A    |   closed   |
   |   | enabled                      |            |            |
   |---+------------------------------+------------+------------|
   |>> | Baud rate up to 448Kbps      |    JP2     | pins 1 & 2 |
   |   | (Clock input is 7.3728)      |            |   closed   |
   |---+------------------------------+------------+------------|
   |   | Baud rate up to 56Kbps       |    JP2     | pins 2 & 3 |
   |   | (Clock input is 1.8432)      |            |   closed   |
   |---+------------------------------+------------+------------|
   |>> | Game port enabled            | JP3/jumper |   closed   |
   |   |                              |     11     |            |
   |---+------------------------------+------------+------------|
   |   | Game port disabled           | JP3/jumper |    open    |
   |   |                              |     11     |            |
   |---+------------------------------+------------+------------|
   |>> | Floppy drive enabled         | JP3/jumper |   closed   |
   |   |                              |     12     |            |
   |---+------------------------------+------------+------------|
   |   | Floppy drive disabled        | JP3/jumper |    open    |
   |   |                              |     12     |            |
   |---+------------------------------+------------+------------|
   |>> | Hard drive enabled           | JP3/jumper |   closed   |
   |   |                              |     13     |            |
   |---+------------------------------+------------+------------|
   |   | Hard drive disabled          | JP3/jumper |    open    |
   |   |                              |     13     |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          SERIAL PORT CONFIGURATION JUMPERS - JP3           |
   |                                                            |
   |     JUMPERS 1-4 - SERIAL PORT 1 (DEFAULT SETTING = >> )     |
   |                                                            |
   | JUMPERS 5-8 - SERIAL PORT 2 (DEFAULT SETTING = >>&IACUTE; ) |
   |------------------------------------------------------------|
   |       COM        |  Jumper  |  Jumper  | Jumper  | Jumper  |
   |                  |   1/5    |   2/6    |   3/7   |   4/8   |
   |------------------+----------+----------+---------+---------|
   |>> | COM1 (3F8)   |   open   |   open   |  open   | closed  |
   |---+--------------+----------+----------+---------+---------|
   |>> | i COM2 (2F8) |   open   |  closed  |  open   |  open   |
   |---+--------------+----------+----------+---------+---------|
   |   | COM3 (3E8)   |   open   |   open   | closed  |  open   |
   |---+--------------+----------+----------+---------+---------|
   |   | COM4 (2E8)   |  closed  |   open   |  open   |  open   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         PARALLEL PORT CONFIGURATION JUMPERS - JP3          |
   |------------------------------------------------------------|
   |         LPT         |   JP3 Jumper 9   |   JP3 Jumper 10   |
   |---------------------+------------------+-------------------|
   |>> |   LPT1 (378)    |       open       |      closed       |
   |---+-----------------+------------------+-------------------|
   |   |   LPT2 (278)    |      closed      |       open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               SERIAL PORT IRQ JUMPERS - JP4                |
   |                                                            |
   |     JUMPERS 1-4 - SERIAL PORT 1 (DEFAULT SETTING = >> )     |
   |                                                            |
   | JUMPERS 5-8 - SERIAL PORT 2 (DEFAULT SETTING = >>&IACUTE; ) |
   |------------------------------------------------------------|
   |     IRQ      |  Jumper   |  Jumper   |  Jumper  |  Jumper  |
   |              |    1/5    |    2/6    |   3/7    |   4/8    |
   |--------------+-----------+-----------+----------+----------|
   |    | IRQ2    |  closed   |   open    |   open   |   open   |
   |----+---------+-----------+-----------+----------+----------|
   |    | IRQ5    |   open    |  closed   |   open   |   open   |
   |----+---------+-----------+-----------+----------+----------|
   |>>  | IRQ4    |   open    |   open    |  closed  |   open   |
   |----+---------+-----------+-----------+----------+----------|
   |>>  | i IRQ3  |   open    |   open    |   open   |  closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     PARALLEL PORT IRQ                      |
   |------------------------------------------------------------|
   |       IRQ        |    JP4 Jumper 9    |   JP4 Jumper 10    |
   |------------------+--------------------+--------------------|
   |   |     IRQ5     |       closed       |        open        |
   |---+--------------+--------------------+--------------------|
   |>> |     IRQ7     |        open        |       closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |         SERIAL PORT DMA MODE SELECT JUMPERS - JP5          |
   |                                                            |
   |      PINS 1-8 - SERIAL PORT 1 (DEFAULT SETTING = >> )       |
   |                                                            |
   | PINS 9-16 - SERIAL PORT 2 (DEFAULT SETTING = >>&IACUTE; )   |
   |------------------------------------------------------------|
   |         DMA          |  Serial Port 1   |  Serial Port 2   |
   |                      |      (CN6)       |      (CN4)       |
   |----------------------+------------------+------------------|
   |>>  | Receive DMA1    | pins 3 & 4 and 7 | pins 11 & 12 and |
   |    |                 |    & 8 closed    |  15 & 16 closed  |
   |----+-----------------+------------------+------------------|
   |    | Transmit DMA1   | pins 1 & 3 and 7 | pins 9 & 11 and  |
   |    |                 |    & 8 closed    |  15 & 16 closed  |
   |----+-----------------+------------------+------------------|
   |>>  | i Receive DMA3  | pins 2 & 4 and 5 | pins 10 & 12 and |
   |    |                 |    & 6 closed    |  13 & 14 closed  |
   |----+-----------------+------------------+------------------|
   |    | Transmit DMA3   | pins 1 & 2 and 5 | pins 9 & 10 and  |
   |    |                 |    & 6 closed    |  13 & 14 closed  |
   +------------------------------------------------------------+