TEXT View Source
# NCL AMERICA
NCL 525
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Three/quarter-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Four IDE(AT) Interface drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 40-pin IDE(AT) Interface connector - IDE-0 | J5 |
|-----------------------------------------------+------------|
| 40-pin IDE(AT) Interface connector - IDE-1 | J6 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | J3 |
|-----------------------------------------------+------------|
| 4-pin connector - Drive active LED | J4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | Jumper JP8 | Jumper JP8A |
|-------------------+-------------------+--------------------|
| » | C800h | open | open |
|---+---------------+-------------------+--------------------|
| | CC00h | closed | open |
|---+---------------+-------------------+--------------------|
| | D800h | open | closed |
|---+---------------+-------------------+--------------------|
| | DC00h | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | DMA Request channel is DRQ2 | JP1 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | DMA Request channel is DRQ3 | JP1 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | DMA Acknowledge channel is | JP2 | Pins 1 & 2 |
| | DACK2 | | closed |
|---+--------------------------------+----------+------------|
| | DMA Acknowledge channel is | JP2 | Pins 2 & 3 |
| | DACK3 | | closed |
|---+--------------------------------+----------+------------|
| » | IDE-0 Hard Drive interrupt is | JP3 | Pins 1 & 2 |
| | IRQ14 | | closed |
|---+--------------------------------+----------+------------|
| | IDE-0 Hard Drive interrupt is | JP3 | Pins 2 & 3 |
| | IRQ11 | | closed |
|---+--------------------------------+----------+------------|
| » | IDE-1 Hard Drive interrupt is | JP4 | Pins 1 & 2 |
| | IRQ15 | | closed |
|---+--------------------------------+----------+------------|
| | IDE-1 Hard Drive interrupt is | JP4 | Pins 2 & 3 |
| | IRQ12 | | closed |
|---+--------------------------------+----------+------------|
| » | IDE-0 IRQ Buffer mode disabled | JP5 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IDE-0 IRQ Buffer mode enabled | JP5 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | IDE-0 I/O Channel Ready | JP6 | open |
| | disabled | | |
|---+--------------------------------+----------+------------|
| | IDE-0 I/O Channel Ready | JP6 | closed |
| | enabled | | |
|---+--------------------------------+----------+------------|
| » | IDE-1 I/O Channel Ready | JP7 | open |
| | disabled | | |
|---+--------------------------------+----------+------------|
| | IDE-1 I/O Channel Ready | JP7 | closed |
| | enabled | | |
|---+--------------------------------+----------+------------|
| » | Floppy drive interrupt is IRQ6 | JP9 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive interrupt is | JP9 | Pins 2 & 3 |
| | IRQ10 | | closed |
|---+--------------------------------+----------+------------|
| » | Floppy drive port address is | JP10 | closed |
| | 3F2-3F7h | | |
|---+--------------------------------+----------+------------|
| | Floppy drive port address is | JP10 | open |
| | 372-377h | | |
|---+--------------------------------+----------+------------|
| » | IDE-0 normal operation mode | JP11 | open |
| | enabled | | |
|---+--------------------------------+----------+------------|
| | IDE-0 diagnostic mode enabled | JP11 | closed |
|---+--------------------------------+----------+------------|
| » | IDE-1 normal operation mode | JP12 | open |
| | enabled | | |
|---+--------------------------------+----------+------------|
| | IDE-1 diagnostic mode enabled | JP12 | closed |
|---+--------------------------------+----------+------------|
| » | IDE-1 IRQ Buffer mode disabled | JP13 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IDE-1 IRQ Buffer mode enabled | JP13 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Floppy drive enabled | JP14 | open |
|---+--------------------------------+----------+------------|
| | Floppy drive disabled | JP14 | closed |
+------------------------------------------------------------+