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 |