NCL5127 Hard Disk/Floppy Controller Settings and Configuration
NCL AMERICA
NCL5127
Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard Drives Supported: Two MFM ST506/412 drives
Floppy Drives Supported: None
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 |
5-pin connector-DC power | CN4 |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
| » | BIOS enabled | JP1 | pins 1 & 2 closed |
BIOS disabled | JP1 | pins 2 & 3 closed | |
| » | Factory configured - do not alter | JP4 | pins 2 & 3 closed |
| » | Head select is 8 or less | JP6 | pins 1 & 2 closed |
Head select is up to 16 | JP6 | pins 2 & 3 closed | |
DRIVE TABLE FOR NCL-5127 BIOS | |||||
Drive Type # | Heads | Cylinders | Drive Type # | Heads | Cylinders |
0 | 7 | 699 | 8 | 6 | 640 |
1 | 6 | 612 | 9 | 5 | 733 |
2 | 4 | 640 | 10 | 7 | 733 |
3 | 4 | 612 | 11 | 5 | 830 |
4 | 2 | 612 | 12 | 7 | 830 |
5 | 2 | 306 | 13 | 10 | 830 |
6 | 4 | 320 | 14 | 15 | 918 |
7 | 4 | 306 | 15 | 5 | 977 |
Note:Types 10-15 are supported by Virtual Split only
| |||||
DRIVE 0 CONFIGURATION TABLE | ||||||||
# | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
0 | closed | closed | closed | open | open | open | open | closed |
1 | closed | closed | open | open | open | open | open | open |
2 | closed | open | closed | open | open | open | open | open |
3 | closed | open | open | open | open | open | open | open |
4 | open | closed | closed | open | open | open | open | open |
5 | open | closed | open | open | open | open | open | open |
6 | open | open | closed | open | open | open | open | open |
7 | open | open | open | open | open | open | open | open |
8 | closed | closed | closed | closed | open | open | open | open |
9 | closed | closed | open | closed | open | open | open | open |
10 | closed | open | closed | closed | open | open | open | closed |
11 | closed | open | open | closed | open | open | open | closed |
12 | open | closed | closed | closed | open | open | open | closed |
13 | open | closed | open | closed | open | open | open | closed |
14 | open | open | closed | closed | open | open | open | closed |
15 | open | open | open | closed | open | open | open | closed |
DRIVE 1 CONFIGURATION TABLE | ||||||||
# | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
1 | open | open | open | open | closed | closed | open | open |
2 | open | open | open | open | closed | open | closed | open |
3 | open | open | open | open | closed | open | open | open |
4 | open | open | open | open | open | closed | closed | open |
5 | open | open | open | open | open | closed | open | open |
6 | open | open | open | open | open | open | closed | open |
7 | open | open | open | open | open | open | open | open |
8 | open | open | open | closed | closed | closed | closed | open |
9 | open | open | open | closed | closed | closed | open | open |
My Books
