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

   MIO-2050

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 32-bit VL-bus                          |
   |-------------------+----------------------------------------|
   | Size:             | Three-quarter length, half-height card |
   |-------------------+----------------------------------------|
   | Hard drive        | Four IDE(AT) drives                    |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/C-D/20963-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |    Location     |
   |------------------------------------------+-----------------|
   | 40-pin primary IDE(AT) connector         |       J1        |
   |------------------------------------------+-----------------|
   | 40-pin secondary IDE(AT) connector       |       J2        |
   |------------------------------------------+-----------------|
   | 34-pin cable connector - floppy drive    |       J3        |
   |------------------------------------------+-----------------|
   | 16-pin game port                         |       J4        |
   |------------------------------------------+-----------------|
   | 10-pin serial port 1 - internal          |       J5        |
   |------------------------------------------+-----------------|
   | 10-pin serial port 2 - internal          |       J6        |
   |------------------------------------------+-----------------|
   | 25-pin parallel port - external          |       J7        |
   |------------------------------------------+-----------------|
   | 2-pin connector - drive active LED       |       J9        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function               | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | IDE(AT) interface enabled      |  JP1/A   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IDE(AT) interface disabled     |  JP1/A   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | VLB speed is 50 MHz            |  JP1/C   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | VLB speed is 33 MHz            |  JP1/C   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy drive order is normal   |  JP2/A   | Pins 2 & 3 |
   |   | (A:, B)                        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive order is reversed |  JP2/A   | Pins 1 & 2 |
   |   | (B:, A)                        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Floppy I/O address is 3F0-3F7h |  JP2/B   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy I/O address is 370-377h |  JP2/B   | Pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |           USER CONFIGURABLE SETTINGS (CONTINUED)           |
   |------------------------------------------------------------|
   |             Function               | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Floppy drive interface enabled |  JP2/C   | Pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Floppy drive interface         |  JP2/C   | Pins 1 & 2 |
   |   | disabled                       |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Secondary IDE IOCHRDY signal   |   JP3    |    Open    |
   |   | disabled                       |          |            |
   |---+--------------------------------+----------+------------|
   |   | Secondary IDE IOCHRDY signal   |   JP3    |   Closed   |
   |   | enabled                        |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Primary IDE IOCHRDY signal     |   JP4    |   Closed   |
   |   | enabled                        |          |            |
   |---+--------------------------------+----------+------------|
   |   | Primary IDE IOCHRDY signal     |   JP4    |    Open    |
   |   | disabled                       |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Parallel port is               |   JP6    |   Closed   |
   |   | uni-directional                |          |            |
   |---+--------------------------------+----------+------------|
   |   | Parallel port is               |   JP6    |    Open    |
   |   | bi-directional                 |          |            |
   |---+--------------------------------+----------+------------|
   |>> | Parallel port IRQ 7 select     |   JP7    | Pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Parallel port IRQ 5 select     |   JP7    | Pins 3 & 4 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Game port enabled              |   JP8    |   Closed   |
   |---+--------------------------------+----------+------------|
   |   | Game port disabled             |   JP8    |    Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     IDE MODE SELECTION                     |
   |------------------------------------------------------------|
   |       Setting        |      JP1/D       |      JP1/E       |
   |----------------------+------------------+------------------|
   |>> |  Mode 0 / cycle  |    Pins 2 & 3    |    Pins 2 & 3    |
   |   |      600ns       |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   |  Mode 1 / cycle  |    Pins 1 & 2    |    Pins 2 & 3    |
   |   |      500ns       |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   |  Mode 2 / cycle  |    Pins 2 & 3    |    Pins 1 & 2    |
   |   |      400ns       |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   |  Mode 3 / cycle  |    Pins 1 & 2    |    Pins 1 & 2    |
   |   |      240ns       |      closed      |      closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 IDE I/O ADDRESS SELECTION                  |
   |------------------------------------------------------------|
   |             Setting              |   JP1/B    |    JP9     |
   |----------------------------------+------------+------------|
   |>> | IDE I/O address is 170h or   | Pins 2 & 3 | Pins 1 & 2 |
   |   | 1F0h                         |   closed   |   closed   |
   |---+------------------------------+------------+------------|
   |   | IDE I/O address is 1F0h only | Pins 1 & 2 | Pins 2 & 3 |
   |   |                              |   closed   |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |       LPT        |       JP5/E        |       JP5/F        |
   |------------------+--------------------+--------------------|
   |>> | LPT1 (378h)  | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | LPT2 (278h)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   | LPT3 (3BCh)  | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |       COM        |       JP5/A        |       JP5/B        |
   |------------------+--------------------+--------------------|
   |>> | COM1 (3F8h)  | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM3 (3E8h)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 ADDRESS SELECTION               |
   |------------------------------------------------------------|
   |       COM        |       JP5/C        |       JP5/D        |
   |------------------+--------------------+--------------------|
   |>> | COM2 (2F8h)  | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   |---+--------------+--------------------+--------------------|
   |   | COM4 (2E8h)  | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |---+--------------+--------------------+--------------------|
   |   |   Disabled   | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                PARALLEL PORT IRQ SELECTION                 |
   |------------------------------------------------------------|
   |     Setting      |  JP7/pins 1 & 2   |   JP7/pins 3 & 4    |
   |------------------+-------------------+---------------------|
   |>> | IRQ 7        | Pins 2 & 3 closed |  Pins 1 & 2 closed  |
   |---+--------------+-------------------+---------------------|
   |   | IRQ 5        | Pins 1 & 2 closed |  Pins 2 & 3 closed  |
   +------------------------------------------------------------+