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 [Image] 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 Pins 3 & 5, 4 & 6 closed resistor Shared Interrupt mode with Pins 3 & 5, 4 & 6, 8 & 10 closed resistor 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