NCL 5475-50, NCL 5476-50 Hard Disk/Floppy Controller Settings and Configuration
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
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 only) | CN4 |
4-pin connector-drive active LED | CN5 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | Hard drive port address is 1F0-1F7h | JP1 | pins 2 & 3 closed |
| Hard drive port address is 170-177h | JP1 | pins 1 & 2 closed | |
| » | Floppy drive port address is 3F2-3F7h (5475-50 only) | JP2 | closed |
Floppy drive port address is 372-377h (5475-50 only) | JP2 | open | |
| » | Factory configured - do not alter | JP3 | open |
| » | Factory configured - do not alter | JP4 | open |
| » | Factory configured - do not alter | JP5 | open |
| » | Unit select turn on the LED | JP6 | open |
Drive select turn on the LED | JP6 | closed | |
| » | Factory configured - do not alter | JP7 | open |
| » | Factory configured - do not alter | JP8 | open |
| » | Hard Drive Interrupt is IRQ14 (Hard-wired) | JP9 | pins 2 & 3 closed |
Hard Drive Interrupt is IRQ15 | JP9 | pins 1 & 2 closed | |
| » | Factory configured - do not alter | JP10 | open |
My Books
