CA8972F (REV.2.1) Hard Disk/Floppy Controller Settings and Configuration

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

CONNECTIONS
Function	Location	Function	Location
40-pin primary IDE(AT) connector	CN1	10-pin serial port 2 - internal	CN5
40-pin secondary IDE(AT) connector	CN2	10-pin serial port 1 - internal	CN6
34-pin cable connector - floppy drive	CN3	25-pin parallel port - external	CN7
16-pin game port	CN4	4-pin connector - drive active LED	JP1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Primary IDE(AT) interface enabled	JP5	Pins 1 & 2 closed
	Primary IDE(AT) interface disabled	JP5	Pins 2 & 3 closed
»	Secondary IDE(AT) interface enabled	JP6	Pins 1 & 2 closed
	Secondary IDE(AT) interface disabled	JP6	Pins 2 & 3 closed
»	Floppy drive interface enabled	JP9	Pins 1 & 2 closed
	Floppy drive interface disabled	JP9	Pins 2 & 3 closed
»	Serial port 1 enabled	JP10	Pins 1 & 2 closed
	Serial port 1 disabled	JP10	Pins 2 & 3 closed
»	Serial port 1 COM1 select	JP11	Pins 1 & 2 closed
	Serial port 1 COM3 select	JP11	Pins 2 & 3 closed
»	Serial port 2 enabled	JP12	Pins 1 & 2 closed
	Serial port 2 disabled	JP12	Pins 2 & 3 closed
»	Serial port 2 COM2 select	JP13	Pins 1 & 2 closed
	Serial port 2 COM4 select	JP13	Pins 2 & 3 closed
»	Parallel port LPT1 select	JP14	Pins 1 & 2 closed
	Parallel port LPT2 select	JP14	Pins 2 & 3 closed
»	Game port enabled	JP15	Pins 1 & 2 closed
	Game port disabled	JP15	Pins 2 & 3 closed

DRAM JUMPER CONFIGURATION
Speed		JP3	JP4
»	0 ( Non-ATA or <40 MB)	Pins 2 & 3 closed	Pins 2 & 3 closed
	1 (40/50 MHz bus speed)	Pins 1 & 2 closed	Pins 1 & 2 closed
	2 (25/33 MHz bus speed)	Pins 2 & 3 closed	Pins 1 & 2 closed
	3 (CPUCLK < 20 MHz or EIDE)	Pins 1 & 2 closed	Pins 2 & 3 closed

DMA CHANNEL SELECTION
Channel		JP16	JP17
»	1	Pins 1 & 2 closed	Pins 1 & 2 closed
	3	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECTION
IRQ		J2
	IRQ3	Pins 2 &4 closed
»	IRQ4	Pins 3 & 4 closed
	IRQ5	Pins 7 & 9 closed
	IRQ7	Pins 9 & 10 closed
	IRQ2(9)	Pins 4 & 6 closed

SERIAL PORT 2 INTERRUPT SELECTION
IRQ		J2
»	IRQ3	Pins 1 & 2 closed
	IRQ4	Pins 3 & 5 closed
	IRQ5	Pins 5 & 7 closed
	IRQ2(9)	Pins 5 & 6 closed

PARALLEL PORT INTERRUPT SELECTION
IRQ		J2
	IRQ5	Pins 7 & 8 closed
»	IRQ7	Pins 8 & 10 closed
	IRQ2(9)	Pins 6 & 8 closed

PARALLEL PORT MODE SELECTION
Setting		JP7	JP8
»	Standard printer	Pins 1 & 2 closed	Pins 2 & 3 closed
	ECP	Pins 1 & 2 closed	Pins 1 & 2 closed
	EPP	Pins 2 & 3 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed