DTC-2278S/D (900140-89B) Hard Disk/Floppy Controller Settings and Configuration

Card Type	Hard drive controller card
Hard Drives supported	Two IDE (AT) drives
Floppy drives supported	Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Data Bus	32-bit VESA Local Bus
Card Size	Full-length, half-height card

CONNECTIONS
Function	Location	Function	Location
9-pin serial port 1 - external	CN1	34-pin cable connector - floppy drive	J5
25-pin parallel port - external	CN2	40-pin secondary IDE(AT) connector	J6
10-pin serial port 2 - internal	J2	40-pin primary IDE(AT) connector	J7
16-pin game port	J4	4-pin connector - drive active LED	J8

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Floppy drive interface enabled	W7	Pins 2 & 3 closed
	Floppy drive interface disabled	W7	Pins 1 & 2 closed
»	Game port enabled	W8	Closed
	Game port disabled	W8	Open
»	Parallel port is uni-directional	W17	Closed
	Parallel port is bi-directional	W17	Open

PARALLEL PORT ADDRESS SELECTION
Setting		W1	W2
»	LPT1 (378h)	Pins 2 & 3 closed	Pins 1 & 2 closed
	LPT2 (278h)	Pins 1 & 2 closed	Pins 2 & 3 closed
	LPT3 (3BCh)	Pins 2 & 3 closed	Pins 2 & 3 closed
	Disabled	Pins 1 & 2 closed	Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION
Setting		W5	W6
»	COM1 (3F8h)	Pins 1 & 2 closed	Pins 2 & 3 closed
	COM3 (3E8h)	Pins 2 & 3 closed	Pins 1 & 2 closed
	COM4 (2E8h)	Pins 2 & 3 closed	Pins 2 & 3 closed
	Disabled	Pins 1 & 2 closed	Pins 1 & 2 closed

SERIAL PORT 2 ADDRESS SELECTION
Setting		W3	W4
»	COM2 (2F8h)	Pins 1 & 2 closed	Pins 2 & 3 closed
	COM3 (3E8h)	Pins 2 & 3 closed	Pins 2 & 3 closed
	COM4 (2E8h)	Pins 2 & 3 closed	Pins 1 & 2 closed
	Disabled	Pins 1 & 2 closed	Pins 1 & 2 closed

SERIAL PORT 1 INTERRUPT SELECTION
IRQ		W14	W15	W16
	IRQ3	Open	Closed	Open
»	IRQ4	Open	Open	Closed
	IRQ5	Closed	Open	Open

SERIAL PORT 2 INTERRUPT SELECTION
IRQ		W11	W12	W13
»	IRQ3	Open	Open	Closed
	IRQ4	Open	Closed	Open
	IRQ5	Closed	Open	Open

PARALLEL PORT INTERRUPT SELECTION
IRQ		W9	W10
	IRQ5	Closed	Open
»	IRQ7	Open	Closed