CA8972 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	32-bit, VL-Bus
Size:	Three quarter-length, half-height card
Hard drive supported:	Two IDE (AT) interface drives
Floppy drives supported:	360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location
40-pin primary IDE(AT) interface	CN1
40-pin secondary IDE(AT) interface	CN2
34-pin control cable connector - floppy drive	CN3
16-pin game port	CN4
10-pin serial port 1 - internal & 9-pin serial port 1 - external	CN5
10-pin serial port 2 - internal	CN6
25-pin parallel port	CN7
2-pin drive active LED for primary IDE	JP1
2-pin drive active LED for secondary IDE	JP2

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Primary IDE interface enabled	JP5	pins 1 & 2 closed
	Primary IDE interface disabled	JP5	pins 2 & 3 closed
»	Secondary IDE interface enabled	JP6	pins 1 & 2 closed
	Secondary IDE interface disabled	JP6	pins 2 & 3 closed
»	Floppy drive interface enabled	JP8	pins 1 & 2 closed
	Floppy drive interface disabled	JP8	pins 2 & 3 closed
»	Game port enabled	JP14	pins 1 & 2 closed
	Game port disabled	JP14	pins 2 & 3 closed

PARALLEL PORT CONFIGURATION
LPT		JP7	JP13
»	LPT2	pins 1 & 2 closed	pins 1 & 2 closed
	LPT3	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a

SERIAL PORT 1 CONFIGURATION
COM		JP9	JP10
»	COM1	pins 1 & 2 closed	pins 1 & 2 closed
	COM3	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a

SERIAL PORT 2 CONFIGURATION
COM		JP11	JP12
»	COM2	pins 1 & 2 closed	pins 1 & 2 closed
	COM4	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a

HDD SPEED CONFIGURATION
CPU Clock Speed	JP3	JP4
> 50MHz	pins 1 & 2 closed	pins 1 & 2 closed
40/50 MHz	pins 2 & 3 closed	pins 2 & 3 closed
25/33 MHz	pins 2 & 3 closed	pins 1 & 2 closed
<20MHz	pins 1 & 2 closed	pins 2 & 3 closed
Note: The HDD speed is configured according to the CPU clock.