AOH :: NCL5125.TXT

NCL's 5125 2:1 MFM AT hard disk controller

National Computer Ltd.5125 MFM 16 bit controller
  2:1 interleave 2 hd/2 fd


JUMPER    OPEN/CLOSED  RESULT
_______________________________
JP 0        open        I/O Address Host to Controller 1F0-1F7
 "          closed      "     "     "     "     "      170-177
JP1         open        "     "     "     "     "      3F2-3F7
 "          closed      "     "     "     "     "      372-377
JP2-5       -----       FACTORY TEST ONLY
JP6         closed      For Normal Operation

FIXED DISK INTERFACE
_______________________________
CN1=34 pin control cable
CN2=20 pin data cable (drive 1)
CN3=20 pin data cable (drive 2)

FLOPPY DISK INTERFACE
_______________________________
CN4=34 pin control and data cable

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