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). |