INTELLIGENT SYNCHRONOUS COMMUNICATIONS ADAPTER IO card Settings and Configuration

Card Type	I/O controller
Chipset/Controller	Texas Instruments
I/O Options	Serial port
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location
Serial port	CN1

I/O ADDRESS CONFIGURATION
Address		JB2/A	JB2/B	JB2/C	JB2/D
»	380h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	370h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	378h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	388h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	390h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
	398h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
	3A0h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

INTERRUPT SELECT
IRQ		JB1/A	JB1/B	JB1/C
»	IRQ3	Closed	Open	Open
	IRQ4	Open	Closed	Open
	IRQ7	Open	Open	Closed

DMA CONFIGURATION
DRQ	DACK	JB1/D	JB1/E	JB1/F	JB1/G
1	1	Closed	Open	Closed	Open
1	3	Closed	Open	Open	Closed
3	1	Open	Closed	Closed	Open
3	3	Open	Closed	Open	Closed

FACTORY CONFIGURED SETTINGS
Jumper	Setting
J4	Pins 1 & 2 closed
J5	Pins 1 & 2 closed
J7	Closed