DTC2280+ (400542-89A) Hard Disk/Floppy Controller Settings and Configuration

Data bus:	16-bit ISA
Size:	Half-length, half-height card
Hard drive supported:	Two IDE(AT) interface drives
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, 1.44MB

CONNECTIONS
Function	Location
40-pin IDE(AT) interface connector	J1
34-pin cable connector - floppy drive	J2
9-pin serial port 1 - external	J3
10-pin serial port 2 - internal	J4
25-pin parallel port - external	J5
16-pin game port - internal	J6
2-pin connector - drive active LED	JP8

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Floppy drives A & B normal	JP6/1	pins 1 & 2 closed
	Floppy drives A & B reversed	JP6/1	pins 2 & 3 closed
»	Floppy drive interface address is 3F0h	JP6/2	pins 2 & 3 closed
	Floppy drive interface address is 370h	JP6/2	pins 1 & 2 closed
»	IDE(AT) interface enabled	JP6/3	pins 1 & 2 closed
	IDE(AT) interface disabled	JP6/3	pins 2 & 3 closed

USER CONFIGURABLE SETTINGS(CONTINUED)
Function		Location	Setting
»	IDE(AT) interface address is 1F0h	JP6/4	pins 2 & 3 closed
	IDE(AT) interface address is 170h	JP6/4	pins 1 & 2 closed
»	Floppy drive interface enabled	JP6/5	pins 1 & 2 closed
	Floppy drive interface disabled	JP6/5	pins 2 & 3 closed
»	Game port enabled	JP16	closed
	Game port disabled	JP16	open
»	Factory configured - do not alter	JP17	N/A
»	Factory configured - do not alter	JP18	N/A
»	Hard drive interrupt IRQ14 select	JP19	pins 1 & 2 closed
	Hard drive interrupt IRQ15 select	JP19	pins 2 & 3 closed
»	Factory configured - do not alter	JP20	N/A
»	Factory configured - do not alter	JP24	N/A
»	Factory configured - do not alter	JP25	N/A

SERIAL PORT 1 CONFIGURATION
Port 1		JP9/1	JP9/2
»	COM1	pins 1 & 2 closed	pins 2 & 3 closed
	COM3	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT 2 CONFIGURATION
Port 2		JP9/3	JP9/4
»	COM2	pins 1 & 2 closed	pins 2 & 3 closed
	COM4	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

PARALLEL PORT CONFIGURATION
LPT		JP9/5	JP9/6
»	1 (378h)	pins 2 & 3 closed	pins 1 & 2 closed
	2 (278h)	pins 1 & 2 closed	pins 2 & 3 closed
	3 ( BCh)	pins 1 & 2 closed	pins 1 & 2 closed

SERIAL PORT 1 INTERRUPT SELECTION
IRQ		JP12/1	JP12/2	JP12/3
»	IRQ4	closed	open	open
	IRQ3	open	closed	open
	IRQ5	open	open	closed

SERIAL PORT 2 INTERRUPT SELECTION
IRQ		JP12/4	JP12/5	JP12/6
»	IRQ3	closed	open	open
	IRQ4	open	closed	open
	IRQ5	open	open	closed

PARALLEL PORT INTERRUPT SELECTION
IRQ		JP12/7	JP12/8
»	7	closed	open
»	5	open	closed