DTC2280 (VER.2) 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:	360KB, 720KB, 1.2MB, 1.44MB

CONNECTIONS
Function	Location
40-pin IDE(AT) interface connector	JP1
16-pin game port - internal	JP2
9-pin serial port 1 - external	JP3
10-pin serial port 2 - internal	JP4
34-pin control cable connector - floppy drive	JP5
2-pin connector - drive active LED	JP8
25-pin parallel port - external	JP15

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	AT bus IDEIOR mode enabled	J1	pins 2 & 3 closed
	W83758P IDEIOR mode enabled	J1	pins 1 & 2 closed
»	AT bus IDEIOW mode enabled	J2	pins 2 & 3 closed
	W83758P IDEIOW mode enabled	J2	pins 1 & 2 closed
»	Floppy drives A & B normal	JP6/A	pins 1 & 2 closed
	Floppy drives A & B reversed	JP6/A	pins 2 & 3 closed

USER CONFIGURABLE SETTINGS(CONTINUED)
Function		Location	Setting
»	Floppy drive interface address 3F0 - 3F7h	JP6/B	pins 2 & 3 closed
	Floppy drive interface address 370 - 377h	JP6/B	pins 1 & 2 closed
»	IDE(AT) interface enabled	JP6/C	pins 1 & 2 closed
	IDE(AT) interface disabled	JP6/C	pins 2 & 3 closed
»	IDE(AT) interface address 3F6, 3F7, 1F0 - 1F7h	JP6/D	pins 2 & 3 closed
	IDE(AT) interface address 376, 377, 170 - 177h	JP6/D	pins 1 & 2 closed
»	Floppy drive interface enabled	JP6/E	pins 1 & 2 closed
	Floppy drive interface disabled	JP6/E	pins 2 & 3 closed
	Parallel port is bi-directional	JP11	open
	Parallel port is unidirectional	JP11	closed
»	Game port enabled	JP16	closed
	Game port disabled	JP16	open
»	Hard drive interrupt is IRQ14	JP18	pins 1 & 2 closed
	Hard drive interrupt is IRQ15	JP18	pins 2 & 3 closed

SERIAL PORT 1 CONFIGURATION
Port 1		JP9/A	JP9/B
»	COM1	pins 1 & 2 closed	pins 2 & 3 closed
	COM3	pins 2 & 3 closed	pins 1 & 2 closed
	COM4	pins 1 & 2 closed	pins 1 & 2 closed
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT 2 CONFIGURATION
Port 2		JP9/C	JP9/D
»	COM2	pins 1 & 2 closed	pins 2 & 3 closed
	COM3	pins 1 & 2 closed	pins 1 & 2 closed
	COM4	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

PARALLEL PORT CONFIGURATION
LPT		JP9/E	JP9/F
»	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
	Disabled	pins 2 & 3 closed	pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECT
IRQ		JP12/A	JP12/B	JP12/C
»	IRQ4	closed	open	open
	IRQ3	open	closed	open
	IRQ5	open	open	closed

SERIAL PORT 2 INTERRUPT SELECT
IRQ		JP12/D	JP12/E	JP12/F
»	IRQ3	closed	open	open
	IRQ4	open	closed	open
	IRQ5	open	open	closed

PARALLEL PORT INTERRUPT SELECT
IRQ		JP12/G	JP12/H
»	IRQ7	closed	open
	IRQ5	open	closed