NCL AMERICA
NCL5127
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Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard Drives Supported: Two MFM ST506/412 drives
Floppy Drives Supported: None
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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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5-pin connector-DC power |
CN4 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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BIOS enabled |
JP1 |
pins 1 & 2 closed | |
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BIOS disabled |
JP1 |
pins 2 & 3 closed | |
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Factory configured - do not alter |
JP4 |
pins 2 & 3 closed | |
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Head select is 8 or less |
JP6 |
pins 1 & 2 closed | |
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Head select is up to 16 |
JP6 |
pins 2 & 3 closed | |
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DRIVE TABLE FOR NCL-5127 BIOS | |||||
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Drive Type # |
Heads |
Cylinders |
Drive Type # |
Heads |
Cylinders |
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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 |
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Note:Types 10-15 are supported by Virtual Split only
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DRIVE 0 CONFIGURATION TABLE | ||||||||
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# |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
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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 |
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DRIVE 1 CONFIGURATION TABLE | ||||||||
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# |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
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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 |