BOCA RESEARCH, INC.

IOAT43

Card Type	MULTI I/O
Chipset Controller	National Semiconductor
I/O Options	Parallel port, Serial port (2)
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	J1	Serial port 1	J2
Parallel port	J3

PARALLEL PORT BASE I/O ADDRESS SELECTION
Address	J5/C
LPT1	Pins 1 & 2 closed
LPT2	Pins 2 & 3 closed

SERIAL PORT 1 BASE I/O ADDRESS SELECTION
Address	J5/A
COM1	Pins 1 & 2 closed
COM3	Pins 2 & 3 closed

SERIAL PORT 2 BASE I/O ADDRESS SELECTION
Address	J5/B
COM2	Pins 1 & 2 closed
COM4	Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECTION
IRQ		J5/D
»	7	Pins 2 & 3 closed
	5	Pins 1 & 2 closed

SERIAL PORT 1 INTERRUPT SELECTION
IRQ		J5/E pins 1 & 2	J5/F pins 1 & 2	J5/G pins 1 & 2	J5/H pins 1 & 2
»	4	Open	Closed	Open	Open
	3	Closed	Open	Open	Open
	5	Open	Open	Closed	Open
	9	Open	Open	Open	Closed

SERIAL PORT 2 INTERRUPT SELECTION
IRQ		J5/E pins 2 & 3	J5/F pins 2 & 3	J5/G pins 2 & 3	J5/H pins 2 & 3
»	3	Closed	Open	Open	Open
	4	Open	Closed	Open	Open
	5	Open	Open	Closed	Open
	9	Open	Open	Open	Closed

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