AT I/O CONTROLLER-XL505 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	32-bit VESA
Size:	Three-quarter length, half-height card
Hard drive supported:	Two IDE(AT) drives
Floppy drives supported:	320KB, 360KB, 720KB, 1.2MB, 1.44MB

CONNECTIONS
Function	Location
40-pin IDE(AT) interface connector	J1
34-pin control cable connector- floppy drive	J2
Serial port 1	J3
Serial port 2	J4
Parallel port	J5
IDE interface LED	J6

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Factory configured - do not alter	JP4	N/A
»	IDE interface enabled	JP6	pins 1 & 2 closed
	IDE interface disabled	JP6	pins 2 & 3 closed
»	Floppy drive interface enabled	JP7	pins 1 & 2 closed
	Floppy drive interface disabled	JP7	pins 2 & 3 closed

BASE MEMORY ADDRESS SELECT
Address		JP3/A	JP3/B	JP3/C
»	C800 - CBFFh	closed	closed	closed
	CC00 - CFFFh	open	closed	closed
	D000 - D3FFh	closed	open	closed
	D400 - D7FFh	open	open	closed
	D800 - DBFFh	closed	closed	open
	DC00 - DFFFh	open	closed	open
	Disabled	open	open	closed
	Disabled	open	open	open

PARALLEL PORT CONFIGURATION
LPT		JP12	JP13
»	2	pins 2 & 3 closed	pins 1 & 2 closed
	1	pins 1 & 2 closed	pins 2 & 3 closed
	3	pins 1 & 2 closed	pins 1 & 2 closed
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT CONFIGURATION
Port 1 (J3)		Port 2 (J4)	JP9	JP10	JP11
»	COM1	COM2	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
	COM1	Disabled	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
	COM2	COM1	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
	COM2	Disabled	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
	COM3	COM4	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	COM1	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	COM2	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	Disabled	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT INTERRUPT SELECT
Port 1 (J3)		Port 2 (J4)	JP5	JP8
»	IRQ4	IRQ3	pins 1 & 2 closed	pins 2 & 3 closed
	IRQ3	IRQ4	pins 2 & 3 closed	pins 1 & 2 closed