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# SONY CORPORATION
CDB-241
Card Type CD-ROM host card
Chip Set Unidentified
Maximum Onboard None
Memory
I/O Options Audio in, host bus connector, line out (2)
Data Bus 8-bit ISA
Floppy drives None
supported
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-----------------------------+-------+--------------+-------|
| Internal host bus connector | CN1 | Line out | J2 |
|-----------------------------+-------+--------------+-------|
| Line out | J1 | Audio in | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW1/A | SW1/B | SW1/C | SW1/D | SW1/E | SW1/F |
|---------+--------+--------+--------+-------+-------+-------|
| | 300h | Open | Open | Open | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 304h | Closed | Open | Open | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 308h | Open | Closed | Open | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 30Ch | Closed | Closed | Open | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 310h | Open | Open | Closed | Open | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 320h | Open | Open | Open |Closed | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 330h | Open | Open | Closed |Closed | Open | Open |
|--+------+--------+--------+--------+-------+-------+-------|
|ยป | 340h | Open | Open | Open | Open |Closed | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 350h | Open | Open | Closed | Open |Closed | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 360h | Open | Open | Open |Closed |Closed | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 370h | Open | Open | Closed |Closed |Closed | Open |
|--+------+--------+--------+--------+-------+-------+-------|
| | 380h | Open | Open | Open | Open | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 390h | Open | Open | Closed | Open | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3A0h | Open | Open | Open |Closed | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3B0h | Open | Open | Closed |Closed | Open |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3C0h | Open | Open | Open | Open |Closed |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3D0h | Open | Open | Closed | Open |Closed |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3E0h | Open | Open | Open |Closed |Closed |Closed |
|--+------+--------+--------+--------+-------+-------+-------|
| | 3F0h | Open | Open | Closed |Closed |Closed |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | SW2/A | SW2/B | SW2/C | SW2/D |
|---------+------------+------------+------------+-----------|
| 2 | Closed | Open | Open | Open |
|---------+------------+------------+------------+-----------|
| 3 | Open | Closed | Open | Open |
|---------+------------+------------+------------+-----------|
| 4 | Open | Open | Closed | Open |
|---------+------------+------------+------------+-----------|
| 5 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
|Channel | SW3/A | SW3/B | SW3/C | SW3/D | SW3/E | SW3/F |
|--------+--------+--------+--------+--------+-------+-------|
| 1 | Closed | Closed | Open | Open | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| 2 | Open | Open | Closed | Closed | Open | Open |
|--------+--------+--------+--------+--------+-------+-------|
| 3 | Open | Open | Open | Open |Closed |Closed |
+------------------------------------------------------------+