LAPC-1 Sound card Settings and Configuration

Card Type	Sound Card
Chipset/Controller	Roland
I/O Options	Line out, MIDI port, speaker jack
Maximum DRAM	N/A

CONNECTIONS
Purpose	Location	Purpose	Location
MIDI port	CN1	Line out (left)	CN3
Line out (right)	CN2	Speaker jack	CN4

I/O ADDRESS CONFIGURATION
Data Port Address		Command Port Address	J7	J8
»	330h (for Board 1)	331h	Pins 1 & 2 closed	Pins 1 & 2 closed
	332h (for Board 2)	333h	Pins 1 & 2 closed	Pins 2 & 3 closed
	334h (for Board 3)	335h	Pins 2 & 3 closed	Pins 1 & 2 closed
	336h (for Board 4)	337h	Pins 2 & 3 closed	Pins 2 & 3 closed
Note:Multiple LAPC-1 cards in the same system can only function with software which is capable of controlling multiple MPU-401 interfaces.

INTERRUPT SELECT
IRQ		J1	J2	J3	J4	J5	J6
»	IRQ2	Closed	Open	Open	Open	Open	Open
	IRQ3	Open	Open	Open	Open	Open	Closed
	IRQ4	Open	Open	Open	Open	Closed	Open
	IRQ5	Open	Open	Open	Closed	Open	Open
	IRQ6	Open	Open	Closed	Open	Open	Open
	IRQ7	Open	Closed	Open	Open	Open	Open
Note:These settings apply when all jumpers in the interrupt jumper block other than the one designated as closed are left open.