SCIENTIFIC MICRO SYSTEMS
OMTI 5510, OMTI 6510
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Data bus: 8-bit, ISA/AT
Size: Half-length, full-height card
Hard drives supported: OMTI 5510: Two MFM ST506/412 drives
OMTI 6510: Two RLL ESDI drives
Floppy drives supported: None
Maximum Hds/Cyls: 16 heads and 2048
Interleave 1:1
Note: Pin 1 on cable connectors is shown for the 5510.
For the 6510, pin orientation is opposite, with pin 1 located in the upper left corner.
|
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 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
BIOS enabled |
W7 |
open | |
|
BIOS disabled |
W7 |
closed | |
|
BIOS address is C8000h |
W8 |
open | |
|
BIOS address is CA000h |
W8 |
closed | |
|
Drive 0 soft sectored (5510 only) |
W11 |
open | |
|
Drive 0 hard sectored (5510 only) |
W11 |
closed | |
|
Drive 1 soft sectored (5510 only) |
W14 |
open | |
|
Drive 1 hard sectored (5510 only) |
W14 |
closed | |
|
I/O PORT ADDRESS | |||
|
Address |
Jumper W5 |
Jumper W6 | |
|
320h |
open |
open | |
|
324h |
closed |
open | |
|
328h |
open |
closed | |
|
32Ch |
closed |
closed | |
|
SECTOR CONFIGURATION JUMPERS | ||||
|
Bytes per Sector |
SPT |
Jumper W9 |
Jumper W10 | |
|
512 |
18 |
open |
open | |
|
256 |
32 |
closed |
open | |
|
512 |
17 |
open |
closed | |
|
1024 |
9 |
closed |
closed | |
|
DRIVE CONFIGURATION | |||||
|
Drive |
Drive 0 |
Drive 1 | |||
|
Type |
Jumper W12 |
Jumper W13 |
Jumper W15 |
Jumper W16 | |
|
Fixed |
open |
open |
open |
open | |
|
Reserved |
closed |
open |
closed |
open | |
|
Reserved |
open |
closed |
open |
closed | |
|
Removable |
closed |
closed |
closed |
closed | |
|
DRIVE TYPE CONFIGURATION | ||||||
|
DRIVE 1 |
DRIVE 0 |
BIOS #1002411 | ||||
|
Jumepr W1 |
Jumper W2 |
Jumper W3 |
Jumper W4 |
Cyl. |
Hds. |
Precomp |
|
closed |
closed |
closed |
closed |
2 |
612 |
400 |
|
open |
closed |
open |
closed |
2 |
612 |
128 |
|
closed |
open |
closed |
open |
6 |
306 |
128 |
|
open |
open |
open |
open |
4 |
306 |
128 |
|
DRIVE CONFIGURATION JUMPERS - BIOS #1002450, #-2451, -#-2302 & #-2570, | ||||||
|
W1 |
W2 |
W3 |
W4 |
HDS |
CYLS |
WPC |
|
closed |
closed |
closed |
closed |
15 |
918 |
none |
|
closed |
closed |
closed |
open |
4 |
640 |
256 |
|
closed |
closed |
open |
closed |
5 |
645 |
320 |
|
closed |
closed |
open |
open |
4 |
512 |
256 |
|
closed |
open |
closed |
closed |
7 |
987 |
none |
|
closed |
open |
closed |
open |
2 |
612 |
400 |
|
closed |
open |
open |
closed |
7 |
634 |
320 |
|
closed |
open |
open |
open |
6 |
306 |
128 |
|
open |
closed |
closed |
closed |
11 |
918 |
none |
|
open |
closed |
closed |
open |
8 |
512 |
256 |
|
open |
closed |
open |
closed |
11 |
754 |
none |
|
open |
closed |
open |
open |
4 |
612 |
256 |
|
open |
open |
closed |
closed |
5 |
697 |
256 |
|
open |
open |
closed |
open |
2 |
612 |
128 |
|
open |
open |
open |
closed |
6 |
640 |
256 |
|
open |
open |
open |
open |
4 |
306 |
128 |
|
DRIVE CONFIGURATION JUMPERS - BIOS #1002452 | ||||||
|
W1 |
W2 |
W3 |
W4 |
HDS. |
CYLS. |
WPC |
|
closed |
closed |
closed |
closed |
3 |
1024 |
512 |
|
open |
closed |
closed |
closed |
5 |
1024 |
512 |
|
closed |
closed |
open |
closed |
7 |
1024 |
512 |
|
open |
closed |
open |
closed |
8 |
1024 |
512 |
|
closed |
open |
closed |
closed |
2 |
612 |
128 |
|
open |
open |
closed |
closed |
4 |
612 |
128 |
|
closed |
open |
open |
closed |
2 |
615 |
128 |
|
open |
open |
open |
closed |
4 |
615 |
128 |
|
closed |
closed |
closed |
open |
4 |
512 |
256 |
|
open |
closed |
closed |
open |
6 |
512 |
256 |
|
closed |
closed |
open |
open |
8 |
512 |
256 |
|
open |
closed |
open |
open |
3 |
697 |
128 |
|
open |
open |
closed |
open |
9 |
925 |
128 |
|
closed |
open |
closed |
open |
5 |
697 |
128 |
|
closed |
open |
open |
open |
6 |
306 |
128 |
|
open |
open |
open |
open |
4 |
306 |
128 |
|
DRIVE CONFIGURATION JUMPERS - BIOS #1002571 | ||||||
|
W1 |
W2 |
W3 |
W4 |
HDS. |
CYLS. |
WPC |
|
closed |
closed |
closed |
closed |
8 |
1024 |
none |
|
open |
closed |
closed |
closed |
4 |
612 |
none |
|
closed |
open |
closed |
closed |
6 |
615 |
none |
|
open |
open |
closed |
closed |
4 |
616 |
none |
|
closed |
closed |
open |
closed |
7 |
987 |
none |
|
open |
closed |
open |
closed |
7 |
1166 |
none |
|
closed |
open |
open |
closed |
11 |
1224 |
none |
|
open |
open |
open |
closed |
15 |
1224 |
none |
|
closed |
closed |
closed |
open |
4 |
820 |
none |
|
open |
closed |
closed |
open |
6 |
820 |
none |
|
closed |
open |
closed |
open |
5 |
1024 |
none |
|
open |
open |
closed |
open |
9 |
1024 |
none |
|
closed |
closed |
open |
open |
5 |
830 |
none |
|
open |
closed |
open |
open |
7 |
830 |
none |
|
closed |
open |
open |
open |
10 |
830 |
none |
|
open |
open |
open |
open |
4 |
615 |
none |
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DRIVE CONFIGURATION JUMPERS - BIOS #1002312 | ||||||
|
W1 |
W2 |
W3 |
W4 |
Hds. |
Cyls. (RWC) |
Step Rate |
|
open |
open |
open |
open |
4 |
615 |
25 m sec |
|
open |
open |
open |
closed |
5 |
987 |
10 m sec |
|
open |
open |
closed |
open |
4 |
612 |
25 m sec |
|
open |
open |
closed |
closed |
8 |
640 |
25 m sec |
|
open |
closed |
open |
open |
4 |
306 (128) |
25 m sec |
|
open |
closed |
open |
closed |
8 |
612 |
25 m sec |
|
open |
closed |
closed |
open |
10 |
830 |
10 m sec |
|
open |
closed |
closed |
closed |
6 |
640 |
25 m sec |
|
closed |
open |
open |
open |
4 |
306 |
25 m sec |
|
closed |
open |
open |
closed |
7 |
830 |
10 m sec |
|
closed |
open |
closed |
open |
4 |
612 (128) |
25 m sec |
|
closed |
open |
closed |
closed |
15 |
918 |
10 m sec |
|
closed |
closed |
open |
open |
2 |
615 |
25 m sec |
|
closed |
closed |
open |
closed |
5 |
980 (700) |
25 m sec |
|
closed |
closed |
closed |
open |
8 |
1024 |
10 m sec |
|
closed |
closed |
closed |
closed |
4 |
640 |
25 m sec |
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MISCELLANEOUS TECHNICAL NOTES |
|
W1 through W4 are used to configure the drive type. To support most of the drives on the market, there have been several different BIOS's offered. The different BIOS drive type tables are listed above with the proper jumper settings. |