(TXT) View Source
       
       # NCL AMERICA
       
          NCL 5475-50, NCL 5476-50
       
          +------------------------------------------------------------+
          +------------------------------------------------------------+
       
          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
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | 34-pin control cable connector-hard drive            | CN1 |
          |------------------------------------------------------+-----|
          | 20-pin data cable connector-drive 0                  | CN2 |
          |------------------------------------------------------+-----|
          | 20-pin data cable connector-drive 1                  | CN3 |
          |------------------------------------------------------+-----|
          | 34-pin data cable connector-floppy drive (NCL 5355   | CN4 |
          | only)                                                |     |
          |------------------------------------------------------+-----|
          | 4-pin connector-drive active LED                     | CN5 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Location |  Setting   |
          |------------------------------------+----------+------------|
          | » | Hard drive port address is     |   JP1    | pins 2 & 3 |
          |   | 1F0-1F7h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Hard drive port address is     |   JP1    | pins 1 & 2 |
          |   | 170-177h                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Floppy drive port address is   |   JP2    |   closed   |
          |   | 3F2-3F7h (5475-50 only)        |          |            |
          |---+--------------------------------+----------+------------|
          |   | Floppy drive port address is   |   JP2    |    open    |
          |   | 372-377h (5475-50 only)        |          |            |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP3    |    open    |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP4    |    open    |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP5    |    open    |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | Unit select turn on the LED    |   JP6    |    open    |
          |---+--------------------------------+----------+------------|
          |   | Drive select turn on the LED   |   JP6    |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP7    |    open    |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP8    |    open    |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | Hard Drive Interrupt is IRQ14  |   JP9    | pins 2 & 3 |
          |   | (Hard-wired)                   |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Hard Drive Interrupt is IRQ15  |   JP9    | pins 1 & 2 |
          |   |                                |          |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP10   |    open    |
          |   | alter                          |          |            |
          +------------------------------------------------------------+