MS-3802 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:	Two 360KB, 720KB, 1.2MB or 1.44MB drives

CONNECTIONS
Function	Location
40-pin IDE (AT) interface connector - port 1	CN1
4-pin connector - drive active LED	CN2
34-pin control cabled connector - floppy drive	CN3
Game port	CN4
10-pin serial port 2 - internal	CN5
9-pin serial port 1 - external	CN6
25-pin parallel port	CN7

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Factory configured - do not alter	JP2	Pins 1 & 2 closed
»	Factory configured - do not alter	JP6	Pins 1 & 2 closed
»	Factory configured - do not alter	JP12	Pins 2 & 3 closed
»	Game port enabled	JP23	Pins 1 & 2 closed
	Game port disabled	JP23	Pins 2 & 3 closed

HARD DRIVE SPEED
Speed	JP1	JP3
Low	Pins 1 & 2 closed	Pins 1 & 2 closed
Middle	Pins 1 & 2 closed	Pins 2 & 3 closed
High	Pins 2 & 3 closed	Pins 2 & 3 closed

HARD DRIVE
Setting		JP4	JP5
»	HDD enabled	Pins 1 & 2 closed	Pins 2 & 3 closed
	HDD disabled	Pins 2 & 3 closed	Pins 1 & 2 closed

SERIAL PORT 1 CONFIGURATION
COM		JP8	JP9
»	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		JP10	JP11
»	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

BIOS ADDRESS
Address	JP14	JP15
C800h	Closed	Closed
CC00h	Closed	Open
D800h	Open	Closed
DC00h	Open	Open
Note:The locations of JP14 and JP15 are not specified in manufacturer’s documentation.

FLOPPY DRIVE
Setting		JP18	J19
»	Primary drive only enabled	Pins 1 & 2 closed	Pins 1 & 2 closed
	Primary and secondary drives enabled	Pins 1 & 2 closed	Pins 2 & 3 closed
	Disabled	Pins 2 & 3 closed	N/A

PARALLEL PORT CONFIGURATION
LPT		JP20	JP21	JP22
»	LPT1	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	LPT2	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
	Disabled	Pins 2 & 3 closed	N/A	N/A