ROLAND CORPORATION
==================

   LAPC-1

   Card Type          Sound Card                                  
   Chipset/Controller Roland                                      
   I/O Options        Line out, MIDI port, speaker jack           
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/P-R/50352-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |      Purpose      | Location |     Purpose      | Location |
   |-------------------+----------+------------------+----------|
   | MIDI port         |   CN1    | Line out (left)  |   CN3    |
   |-------------------+----------+------------------+----------|
   | Line out (right)  |   CN2    | Speaker jack     |   CN4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 I/O ADDRESS CONFIGURATION                  |
   |------------------------------------------------------------|
   |    Data Port    |  Command Port  |     J7     |     J8     |
   |     Address     |    Address     |            |            |
   |-----------------+----------------+------------+------------|
   |>>  | 330h (for  |      331h      | Pins 1 & 2 | Pins 1 & 2 |
   |    |  Board 1)  |                |   closed   |   closed   |
   |----+------------+----------------+------------+------------|
   |    | 332h (for  |      333h      | Pins 1 & 2 | Pins 2 & 3 |
   |    |  Board 2)  |                |   closed   |   closed   |
   |----+------------+----------------+------------+------------|
   |    | 334h (for  |      335h      | Pins 2 & 3 | Pins 1 & 2 |
   |    |  Board 3)  |                |   closed   |   closed   |
   |----+------------+----------------+------------+------------|
   |    | 336h (for  |      337h      | Pins 2 & 3 | Pins 2 & 3 |
   |    |  Board 4)  |                |   closed   |   closed   |
   |------------------------------------------------------------|
   |   Note:Multiple LAPC-1 cards in the same system can only   |
   |   function with software which is capable of controlling   |
   |   multiple MPU-401 interfaces.                             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      INTERRUPT SELECT                      |
   |------------------------------------------------------------|
   |   IRQ   |    J1    |  J2   |  J3   |  J4   |  J5   |  J6   |
   |---------+----------+-------+-------+-------+-------+-------|
   |>> | IRQ2 |  Closed  | Open  | Open  | Open  | Open  | Open  |
   |--+------+----------+-------+-------+-------+-------+-------|
   |  | IRQ3 |   Open   | Open  | Open  | Open  | Open  |Closed |
   |--+------+----------+-------+-------+-------+-------+-------|
   |  | IRQ4 |   Open   | Open  | Open  | Open  |Closed | Open  |
   |--+------+----------+-------+-------+-------+-------+-------|
   |  | IRQ5 |   Open   | Open  | Open  |Closed | Open  | Open  |
   |--+------+----------+-------+-------+-------+-------+-------|
   |  | IRQ6 |   Open   | Open  |Closed | Open  | Open  | Open  |
   |--+------+----------+-------+-------+-------+-------+-------|
   |  | IRQ7 |   Open   |Closed | Open  | Open  | Open  | Open  |
   |------------------------------------------------------------|
   |  Note:These settings apply when all jumpers in the         |
   |  interrupt jumper block other than the one designated as   |
   |  closed are left open.                                     |
   +------------------------------------------------------------+