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# ROLAND CORPORATION
LAPC-1
Card Type Sound Card
Chipset/Controller Roland
I/O Options Line out, MIDI port, speaker jack
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| 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. |
+------------------------------------------------------------+