MITSUMI ELECTRONICS
INTERFACE CARD
|
Card Type |
CD-ROM interface card |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
None |
|
I/O Options |
Audio in, audio (2), CD-ROM interface connector |
|
Data Bus |
16-bit ISA |
|
Floppy drives supported |
None |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Audio in |
CN1 |
Audio left channel |
J1 |
|
CD-ROM interface connector |
CN2 |
Audio right channel |
J2 |
|
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). |