LCS-6640 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	16-bit, ISA
Size:	Three/quarter-length, full-height card
Hard drive supported:	Up to seven SCSI devices
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location
34-pin control cable connector - floppy drive	CN1
50 pin SCSI connector - internal	CN2
50 pin SCSI connector - external	CN3
2-pin connector - Drive active LED	JP6

CACHE MEMORY CONFIGURATION - JP1
Bank 0		Bank 1	Total size	Jumper 1	Jumper 2	Jumper 3	Jumper 4
	256KB	0KB	512K	closed	open	closed	closed
»	256KB	256KB	1MB	closed	open	closed	open
	256KB	1MB	2.5MB	closed	open	open	closed
	256KB	4MB	8.5MB	closed	open	open	open
	1MB	0KB	2MB	open	closed	closed	closed
	1MB	256KB	2.5MB	open	closed	closed	open
	1MB	1MB	4MB	open	closed	open	closed
	1MB	4MB	10MB	open	closed	open	open
	4MB	0KB	8MB	open	open	closed	closed
	4MB	256KB	8.5MB	open	open	closed	open
	4MB	1MB	10MB	open	open	open	closed
	4MB	4MB	16MB	open	open	open	open

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Hard drive port address is 1F0-1F7h	JP3	closed
	Hard drive port address is 170-177h	JP3	open
»	Floppy drive port address is 3F0-3F7h	JP4	closed
	Floppy drive port address is 370-377h	JP4	open

BIOS ADDRESS
Address		JP5/Jumper 1	JP5/Jumper 2
	D000h	closed	closed
»	D200h	closed	open
	D400h	open	closed
	disable	open	open

INTERRUPT REQUEST - JP7
IRQ		Jumper 1	Jumper 2	Jumper 3	Jumper 4	Jumper 5
	IRQ15	closed	open	open	open	open
»	IRQ14	open	closed	open	open	open
	IRQ12	open	open	closed	open	open
	IRQ11	open	open	open	closed	open
	IRQ10	open	open	open	open	closed

MISCELLANEOUS TECHNICAL NOTES

JP2 is factory configured - do not alter.