SCIENTIFIC MICRO SYSTEMS
OMTI 8600, 8610
|
| |
|
Data bus: |
16-bit, ISA |
|
Size: |
Full-length, full-height card |
|
Hard drives supported: |
Two MFM ST506/ST412 drives or ESDI drives |
|
Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
|
CONNECTIONS | |
|
Function |
Location |
|
34-pin control cable connector - hard drive |
J2 |
|
20-pin data cable connector - drive 0 |
J3 |
|
20-pin data cable connector - drive 1 |
J4 |
|
34-pin control cable connector - floppy drive |
J7 |
|
2-pin connector - drive active LED |
J12 |
|
DRIVE TYPE CONFIGURATION | |||||
|
Cylinders |
Heads |
W1 |
W2 |
W3 |
W4 |
|
ESDI |
ESDI |
closed |
closed |
closed |
closed |
|
918 |
15 |
open |
closed |
closed |
closed |
|
987 |
7 |
closed |
open |
closed |
closed |
|
697 |
5 |
open |
open |
closed |
closed |
|
306 |
4 |
closed |
closed |
open |
closed |
|
977 |
5 |
open |
closed |
open |
closed |
|
733 |
5 |
closed |
open |
open |
closed |
|
640 |
6 |
open |
open |
open |
closed |
|
640 |
4 |
closed |
closed |
closed |
open |
|
512 |
8 |
open |
closed |
closed |
open |
|
612 |
2 |
closed |
open |
closed |
open |
|
612 |
7 |
open |
open |
closed |
open |
|
615 |
4 |
closed |
closed |
open |
open |
|
612 |
4 |
open |
closed |
open |
open |
|
306 |
6 |
closed |
open |
open |
open |
|
306 |
4 |
open |
open |
open |
open |
|
HARD DRIVE PORT ADDRESS | ||||
|
Address |
W5 |
W6 |
W22 | |
|
320h |
open |
open |
closed | |
|
324h |
closed |
open |
closed | |
|
328h |
open |
closed |
closed | |
|
32Ch |
closed |
closed |
closed | |
|
1A0h |
open |
open |
open | |
|
1A4h |
closed |
open |
open | |
|
1A8h |
open |
closed |
open | |
|
1ACh |
closed |
closed |
open | |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
Floppy drive port address is 3F0-3F7h |
W7 |
closed | |
|
Floppy drive port address is 370-377h |
W7 |
open | |
|
Drive 0 sector type is soft |
W10 |
open | |
|
Drive 0 sector type is hard |
W10 |
closed | |
|
Drive 0 set for ST506 drive |
W11 |
open | |
|
Drive 0 set for ESDI drive |
W11 |
closed | |
|
Drive 0 set for fixed media drive |
W12 |
open | |
|
Drive 0 set for removable media drive |
W12 |
closed | |
|
Drive 1 sector type is soft |
W13 |
open | |
|
Drive 1 sector type is hard |
W13 |
closed | |
|
Drive 1 set for ST506 drive |
W14 |
open | |
|
Drive 1 set for ESDI drive |
W14 |
closed | |
|
Drive 1 set for fixed media drive |
W15 |
open | |
|
Drive 1 set for removable media drive |
W15 |
closed | |
|
BYTES PER SECTOR | |||
|
Bytes per sector/sectors per track |
W8 |
W9 | |
|
512/17 |
open |
open | |
|
512/18 |
closed |
open | |
|
1024/9 |
open |
closed | |
|
1056/9 |
closed |
closed | |
|
MISCELLANEOUS TECHNICAL NOTES |
|
Jumpers W21, W23, W24, W25 are factory configured - do not alter. |