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# NCL AMERICA
NCL 5426
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two ST506/412MFM drives
Floppy drives supported: None
Maximum heads/cyl.: 16 heads and 2048 cylinders
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|----------------------------------------------+-------------|
| 34-pin control cable connector-hard drive | CN1 |
|----------------------------------------------+-------------|
| 20-pin data cable connector-drive 0 | CN2 |
|----------------------------------------------+-------------|
| 20-pin data cable connector-drive 1 | CN3 |
|----------------------------------------------+-------------|
| 4-pin connector-drive active LED | CN4 |
|----------------------------------------------+-------------|
| 10-pin connector - drive power connector | DPC |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|---------------------------------------+----------+---------|
| » | Hard drive address is 1F0-1F7h | JP0 | open |
|---+-----------------------------------+----------+---------|
| | Hard drive address is 170-177h | JP0 | closed |
|---+-----------------------------------+----------+---------|
| » | Floppy drive port address is | JP1 | open |
| | 3F2-3F7h | | |
|---+-----------------------------------+----------+---------|
| | Floppy drive port address is | JP1 | closed |
| | 372-377h | | |
|---+-----------------------------------+----------+---------|
| » | LED always "on" | JP2 | open |
|---+-----------------------------------+----------+---------|
| | LED "on" only when drive is | JP2 | closed |
| | select | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRIVE TYPES SUPPORTED BY THE NCL542X FIRMWARE |
|------------------------------------------------------------|
| TYPE | HEADS | CYLS. | W.P.C. | L.Z. |
|-----------+------------+-----------+------------+----------|
| 1 | 4 | 306 | 128 | 305 |
|-----------+------------+-----------+------------+----------|
| 2 | 4 | 615 | 300 | 615 |
|-----------+------------+-----------+------------+----------|
| 3 | 6 | 615 | 300 | 615 |
|-----------+------------+-----------+------------+----------|
| 4 | 8 | 940 | 512 | 940 |
|-----------+------------+-----------+------------+----------|
| 5 | 6 | 940 | 512 | 940 |
|-----------+------------+-----------+------------+----------|
| 6 | 4 | 615 | N/A | 615 |
|-----------+------------+-----------+------------+----------|
| 7 | 8 | 462 | 256 | 511 |
|-----------+------------+-----------+------------+----------|
| 8 | 5 | 733 | N/A | 733 |
|-----------+------------+-----------+------------+----------|
| 9 | 15 | 900 | N/A | 901 |
|-----------+------------+-----------+------------+----------|
| 10 | 3 | 820 | N/A | 820 |
|-----------+------------+-----------+------------+----------|
| 11 | 5 | 855 | N/A | 855 |
|-----------+------------+-----------+------------+----------|
| 12 | 7 | 855 | N/A | 855 |
|-----------+------------+-----------+------------+----------|
| 13 | 8 | 306 | 128 | 319 |
|-----------+------------+-----------+------------+----------|
| 14 | 7 | 733 | N/A | 733 |
|-----------+------------+-----------+------------+----------|
| 15 | Reserved | - | - | - |
+------------------------------------------------------------+