SCIENTIFIC MICRO SYSTEMS
OMTI 5520B
|
| |
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Data bus: |
8-bit ISA |
|
Size: |
Half-length, full-height card |
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Hard drive supported: |
Two MFM ST-506/412 drives |
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Floppy drives supported: |
None |
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CONNECTIONS | |
|
Function |
Location |
|
34-pin control cable connector - hard drive |
J1 |
|
20-pin data cable connector - drive 1 |
J2 |
|
20-pin data cable connector - drive 2 |
J3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
BIOS controller enabled |
W7 |
open | |
|
BIOS controller disabled |
W7 |
closed | |
|
BIOS controller address is C8000h |
W8 |
open | |
|
BIOS controller address is CA000h |
W8 |
closed | |
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HARD DISK TYPE SELECTION FOR DRIVES 0 AND 1 | |||||||
|
Model |
Cylinder Nbr. |
Head Nbr. |
WPC cyl. |
W1 |
W2 |
W3 |
W4 |
|
CDC 9415-36 |
697 |
5 |
256 |
open |
open |
closed |
closed |
|
Cynthia 570 |
987 |
7 |
N/A |
closed |
open |
closed |
closed |
|
DMA/Ricoh (10MB removeable) |
612 |
2 |
400 |
closed |
open |
closed |
open |
|
Lapine 3522 |
306 |
4 |
128 |
open |
open |
open |
open |
|
Maxtor XT1140 |
918 |
15 |
N/A |
closed |
closed |
closed |
closed |
|
Miniscribe 3012/3212 |
612 |
2 |
128 |
open |
open |
closed |
open |
|
Miniscribe 3425 |
612 |
4 |
128 |
open |
closed |
closed |
closed |
|
Microscience HH312 |
306 |
4 |
N/A |
closed |
closed |
open |
closed |
|
Quantum Q540 |
512 |
8 |
256 |
open |
closed |
closed |
open |
|
Rodime 352 |
306 |
4 |
N/A |
closed |
closed |
open |
closed |
|
Seagate ST212/412 |
306 |
4 |
128 |
open |
open |
open |
open |
|
Seagate ST213 |
612 |
2 |
256 |
closed |
open |
open |
open |
|
Seagate ST225 |
615 |
4 |
256 |
open |
closed |
open |
open |
|
Seagate ST4026 |
615 |
4 |
300 |
closed |
closed |
open |
open |
|
Seagate ST4038 |
733 |
5 |
300 |
closed |
open |
open |
closed |
|
Seagate ST4051 |
977 |
5 |
300 |
open |
closed |
open |
closed |
|
Vertex V170 |
987 |
7 |
N/A |
closed |
open |
closed |
closed |
|
Note: Install jumpers W1 through W4 in a two-drive system, only when both drives are the same model and that model is listed above. If drive model is not listed above, do not install jumpers W1 through W4. WPC is Write Precompensation. | |||||||
|
HARD DISK I/O ADDRESS SELECTION | |||
|
Address |
W5 |
W6 | |
|
320h |
open |
open | |
|
324h |
closed |
open | |
|
328h |
open |
closed | |
|
32Ch |
closed |
closed | |