SEALEVEL SYSTEMS, INC.
DATASHARK
|
Card Type |
Serial card |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
Unidentified |
|
I/O Options |
Serial ports (2) |
|
Hard Drives supported |
None |
|
Floppy drives supported |
None |
|
Data Bus |
16-bit ISA |
|
Card Size |
Full-height |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Serial Port 1 |
J2 |
Serial Port 2 |
J3 |
|
USER CONFIGURABLE SETTINGS | ||
|
Function |
Label |
Position |
|
Port 2 enabled |
E6 |
Closed |
|
Port 2 disabled |
E6 |
Open |
|
BASE I/O ADDRESS SELECTION | ||||||
|
Port 1 |
Port 2 |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 | |
|
3F8h |
2F8h |
On |
On |
On |
Off | |
|
3E8h |
2E8h |
On |
On |
Off |
On | |
|
2F8h |
2E8h |
On |
On |
Off |
Off | |
|
2F8h |
3E8h |
On |
Off |
On |
On | |
|
3220h |
3228h |
On |
Off |
On |
Off | |
|
4220h |
4228h |
On |
Off |
Off |
On | |
|
5220h |
5228h |
On |
Off |
Off |
Off | |
|
5220h |
4220h |
Off |
On |
On |
On | |
|
280h |
290h |
Off |
On |
On |
Off | |
|
300h |
308h |
Off |
On |
Off |
On | |
|
310h |
318h |
Off |
On |
Off |
Off | |
|
280h |
288h |
Off |
Off |
On |
On | |
|
290h |
298h |
Off |
Off |
On |
Off | |
|
300h |
280h |
Off |
Off |
Off |
On | |
|
Disabled |
Disabled |
Off |
Off |
Off |
Off | |
|
SERIAL PORT 1 INTERRUPT SELECTION | ||||||||||
|
IRQ |
E1/A |
E1/B |
E1/C |
E1/D |
E1/E |
E1/F |
E1/G |
E1/H |
E1/I | |
|
2/9 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
3 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
4 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open | |
|
5 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
7 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
10 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
11 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
12 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
15 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
SERIAL PORT 2 INTERRUPT SELECTION | ||||||||||
|
IRQ |
E2/A |
E2/B |
E2/C |
E2/D |
E2/E |
E2/F |
E2/G |
E2/H |
E2/I | |
|
2/9 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
3 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
4 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open | |
|
5 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
7 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
10 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
11 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
12 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
15 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
SERIAL INTERRUPT MODE SELECTION PORT 1 | ||
|
IRQ |
E3 | |
|
Normal |
Pins 1 & 3, 2 & 4 closed | |
|
Shared Interrupt mode without resistor |
Pins 3 & 5, 4 & 6 closed | |
|
Shared Interrupt mode with resistor |
Pins 3 & 5, 4 & 6, 8 & 10 closed | |
|
None |
Open | |
|
Note: When using the shared interrupt mode, either port 1 or port 2 must include a 1K ohm pull-down resistor. This is done by either closing pins 7 & 9 or pins 8 & 10 on E3. If there is more than one Datashark in use, or if you wish to completely remove the pull-down resistor for hardware compatibility, set E3 in shared interrupt mode and do not include the pull-down resistor. This will prevent the ports from triggering an interrupt. | ||
|
PORT 1 CLOCK MODES | |
|
DIVIDE |
E4 |
|
1 |
Pins 5 & 6 closed |
|
2 |
Pins 3 & 4 closed |
|
4 |
Pins 1 & 2 closed |
|
PORT 2 CLOCK MODES | |
|
DIVIDE |
E5 |
|
1 |
Pins 5 & 6 closed |
|
2 |
Pins 3 & 4 closed |
|
4 |
Pins 1 & 2 closed |