UN-1075 Hard Disk/Floppy Controller Settings and Configuration

Data bus: 16-bit, ISA

Size: Half-length, half-height card

Hard drives supported: Two IDE (AT) Interface drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives

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

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	IDEIOR path = ATBUS IOR	J1	Pins 2 & 3 closed
	IDEIOR path = W83758P - IOROP	J1	Pins 1 & 2 closed
»	IDEIOW path = ATBUS IOW	J2	Pins 2 & 3 closed
	IDEIOW path = W83758P - IOWOP	J2	Pins 1 & 2 closed
»	Floppy drive A & B normal mode	JP6/1	Pins 1 & 2 closed
	Floppy drive A & B change mode	JP6/1	Pins 2 & 3 closed

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Floppy drive address = 3F0h - 3F7h	JP6/2	Pins 2 & 3 closed
	Floppy drive address = 370h - 377h	JP6/2	Pins 1 & 2 closed
»	IDE bus enabled	JP6/3	Pins 1 & 2 closed
	IDE bus disabled	JP6/3	Pins 2 & 3 closed
»	HDD address = 3F6h, 3F7h, 1F0h - 1F7h	JP6/4	Pins 2 & 3 closed
	HDD address = 376h, 377h, 170h - 177h	JP6/4	Pins 1 & 2 closed
»	Floppy drive controller enabled	JP6/5	Pins 1 & 2 closed
	Floppy drive controller disabled	JP6/5	Pins 2 & 3 closed
»	Game port enabled	JP16	Closed
	Game port disabled	JP16	Open

SERIAL PORT 1 (JP3) CONFIGURATION
COM/Address		JP9/1	JP9/2
»	COM1/3F8h	Pins 1 & 2 closed	Pins 2 & 3 closed
	COM3/3E8h	Pins 2 & 3 closed	Pins 1 & 2 closed
	COM4/2E8h	Pins 1 & 2 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 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 (JP4) CONFIGURATION
COM/Address		JP9/3	JP9/4
»	COM2/2F8h	Pins 1 & 2 closed	Pins 2 & 3 closed
	COM3/3E8h	Pins 1 & 2 closed	Pins 1 & 2 closed
	COM4/2E8h	Pins 2 & 3 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 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 (JP15) CONFIGURATION
LPT/Address		JP9/5	JP9/6
»	LPT1/378h	Pins 2 & 3 closed	Pins 1 & 2 closed
	LPT2/278h	Pins 1 & 2 closed	Pins 2 & 3 closed
	LPT3/38Ch	Pins 1 & 2 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECTION
IRQ		JP12/7	JP12/8
»	IRQ7	Closed	Open
	IRQ5	Open	Closed