DC - 880B Hard Disk/Floppy Controller Settings and Configuration

Q3/95
Data bus:	32-bit VL-Bus
Size:	Full-length, half-height card
Hard drive supported:	Up to seven SCSI drives
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, or 1.44MB, or 2.88MB drives

CONNECTIONS
Function	Location
50-pin SCSI connector - external	CN1
50-pin SCSI connector - internal	CN2
34-pin cable connector - floppy drive	CN3
2-pin connector - drive active LED	JP1
4-pin connector - speaker	JP2

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Floppy drive enabled	JP3/jumper 1	closed
»	Floppy drive disabled	JP3/jumper 1	open
»	Factory configured - do not alter	JP3/jumper 5	open

BASE I/O ADDRESS
Address		JP3/jumper 2	JP3/jumper 3	JP3/jumper 4
»	330h	closed	closed	closed
»	130h	open	open	closed
»	134h	open	open	open
»	230h	open	closed	closed
»	234h	open	closed	open
»	334h	closed	open	closed

CACHE MEMORY CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
2.5MB	(2) 1MB x 9	(2) 256K x 9
4MB	(2) 1MB x 9	(2) 1MB x 9
8MB	(2) 4MB x 9	NONE
8.5MB	(2) 4MB x 9	(2) 256K x 9
10MB	(2) 4MB x 9	(2) 1MB x 9
16MB	(2) 4MB x 9	(2) 4MB x 9
Note: Bank 0 must be installed while SIMM’s can be mixed in any combination not exceeding 16MB.