CA8871 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	32-bit, VL-Bus
Size:	Three quarter-length, full-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 IDE (AT) interface connector	CN1
34-pin control cable connector - floppy drive	CN2
Game port	CN3
9-pin serial port 1 - external	CN4
10-pin serial port 2 - internal	CN5
25-pin parallel port	CN6
2-pin connector - drive active	JP6

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	IDE port enabled	JP7	pins 1 & 2 closed
	IDE port disabled	JP7	pins 2 & 3 closed
»	Hard drive is installed in system	JP12	pins 2 & 3 closed
	Hard drive is not installed in system	JP12	pins 1 & 2 closed
»	Floppy drive enabled	JP16	pins 1 & 2 closed
	Floppy drive disabled	JP16	pins 2 & 3 closed
»	Game port enabled	JP19	pins 1 & 2 closed
	Game port disabled	JP19	pins 2 & 3 closed

ACTIVE TIME
Wait State		JP3	JP4	JP5
»	9T	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
	3T	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
	4T	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
	5T	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed
	6T	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
	7T	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
	8T	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
	10T	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
Note:The value of variable "T" is the CPU clock speed.

RECOVERY TIME
Wait State		JP8	JP9	JP10
»	15T	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
	5T	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
	7T	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
	9T	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed
	11T	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
	13T	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
	17T	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
	19T	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
Note:The value of variable "T" is the CPU clock speed.

PARALLEL PORT CONFIGURATION
LPT/Address		JP11	JP17
»	LPT1/378h	pins 1 & 2 closed	pins 1 & 2 closed
	LPT2/278h	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a

SERIAL PORT 1 CONFIGURATION
COM/Address		JP13	JP14
»	COM1/3F8h	pins 1 & 2 closed	pins 1 & 2 closed
	COM3/3E8h	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a

SERIAL PORT 2 CONFIGURATION
COM/Address		JP15	JP18
»	COM2/2F8h	pins 1 & 2 closed	pins 1 & 2 closed
	COM4/2E8h	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	pins 2 & 3 closed	n/a