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# MITSUMI ELECTRONICS CORPORATION
EXTERNAL CD-ROM INTERFACE CARD (VER. 1)
Card Type CD-ROM interface card
Chip Set Unidentified
Maximum Onboard Memory None
I/O Options None
Data Bus 8-bit ISA
Floppy drives supported None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|-------------------------------+----------------------------|
| CD-ROM interface connector | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/1 | On |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/2 | On |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/3 | On |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/4 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/5 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/6 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/7 | Off |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW2/8 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP2/A | JP2/B | JP2/C | JP2/D |
|------------+-----------+-----------+-----------+-----------|
| | 1 | Closed | Closed | Open | Open |
|----+-------+-----------+-----------+-----------+-----------|
| » | 3 | Open | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
|Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
|--------+------+------+------+------+-----+-----+-----+-----|
| | 0h | On | On | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| | 4h | Off | On | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| | 8h | On | Off | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| | Ch | Off | Off | On | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| | 10h | On | On | Off | On | On | On | On | On |
|--+-----+------+------+------+------+-----+-----+-----+-----|
|» |300h | On | On | On | On | On | On | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3ECh | Off | Off | On | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F0h | On | On | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F4h | Off | On | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3F8h | On | Off | Off | Off | Off | Off | Off | Off |
|--+-----+------+------+------+------+-----+-----+-----+-----|
| |3FCh | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note:A total of 256 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: SW1/8=512, SW1/7=256, SW1/6=128, |
| SW1/5=64, SW1/4=32, SW1/3=16, SW1/2=8, SW1/1=4. Turn |
| off the switches and add the values of the switches to |
| obtain the correct memory address. (Off=1, On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1/A | JP1/B | JP1/C |
|----------------+--------------+--------------+-------------|
| | IRQ2 | Closed | Open | Open |
|---+------------+--------------+--------------+-------------|
| » | IRQ3 | Open | Closed | Open |
|---+------------+--------------+--------------+-------------|
| | IRQ5 | Open | Open | Closed |
+------------------------------------------------------------+