NCL AMERICA
NCL 5475-50, NCL 5476-50
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Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two ST506/412 MFM drives
Floppy drives supported: NCL 5475-50: Two 360KB, 720KB, 1.2MB, or 1.44MB
NCL 5476-50: None
Maximum heads/cyl.: 16 heads and 2048 cylinders
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CONNECTIONS | |
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34-pin control cable connector-hard drive |
CN1 |
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20-pin data cable connector-drive 0 |
CN2 |
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20-pin data cable connector-drive 1 |
CN3 |
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34-pin data cable connector-floppy drive (NCL 5355 only) |
CN4 |
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4-pin connector-drive active LED |
CN5 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Hard drive port address is 1F0-1F7h |
JP1 |
pins 2 & 3 closed | |
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Hard drive port address is 170-177h |
JP1 |
pins 1 & 2 closed | |
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Floppy drive port address is 3F2-3F7h (5475-50 only) |
JP2 |
closed | |
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Floppy drive port address is 372-377h (5475-50 only) |
JP2 |
open | |
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Factory configured - do not alter |
JP3 |
open | |
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Factory configured - do not alter |
JP4 |
open | |
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Factory configured - do not alter |
JP5 |
open | |
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Unit select turn on the LED |
JP6 |
open | |
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Drive select turn on the LED |
JP6 |
closed | |
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Factory configured - do not alter |
JP7 |
open | |
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Factory configured - do not alter |
JP8 |
open | |
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Hard Drive Interrupt is IRQ14 (Hard-wired) |
JP9 |
pins 2 & 3 closed | |
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Hard Drive Interrupt is IRQ15 |
JP9 |
pins 1 & 2 closed | |
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Factory configured - do not alter |
JP10 |
open | |