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# MITSUMI ELECTRONICS
INTERFACE CARD
Card Type CD-ROM interface card
Chip Set Unidentified
Maximum Onboard None
Memory
I/O Options Audio in, audio (2), CD-ROM interface
connector
Data Bus 16-bit ISA
Floppy drives None
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Audio in | CN1 | Audio left channel | J1 |
|----------------------+-------+---------------------+-------|
| CD-ROM interface | CN2 | Audio right channel | J2 |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
|Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
|--------+------+------+------+------+-----+-----+-----+-----|
|» |300h | Off | Off | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |304h | Off | Off | On | On | On | On | On | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |308h | Off | Off | On | On | On | On | Off | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |30Ch | Off | Off | On | On | On | On | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |310h | Off | Off | On | On | On | Off | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3ECh | Off | Off | Off | Off | Off | On | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F0h | Off | Off | Off | Off | Off | Off | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F4h | Off | Off | Off | Off | Off | Off | On | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F8h | Off | Off | Off | Off | Off | Off | Off | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3FCh | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note:A total of 255 base address settings are |
| available. The switches are a binary representation of |
| the decimal memory addresses. SW1/8 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/1=512, SW1/2=256, SW1/3=128, |
| SW1/4=64, SW1/5=32, SW1/6=16, SW1/7=8, and SW1/8=4. |
| Turn off the switches and add the values of the |
| switches to obtain the correct memory address. (Off=1, |
| On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP1/A | JP1/B | JP1/C |
|---------------+--------------+--------------+--------------|
| » | 5 | Closed | Open | Open |
|----+----------+--------------+--------------+--------------|
| | 6 | Open | Closed | Open |
|----+----------+--------------+--------------+--------------|
| | 7 | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP2/A | JP2/B | JP2/C | JP2/D | JP2/E |
|----------+---------+---------+---------+---------+---------|
| | 2/9 | Closed | Open | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 3 | Open | Closed | Open | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| | 5 | Open | Open | Closed | Open | Open |
|---+------+---------+---------+---------+---------+---------|
| » | 10 | Open | Open | Open | Closed | Open |
|---+------+---------+---------+---------+---------+---------|
| | 11 | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| Note: This interface card work in conjunction with |
| the Mitsumi Internal CD-ROM drive (Ver.1.0). |
+------------------------------------------------------------+