DCE376 Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
34-pin data cable connector-floppy drive	P0
50-pin SCSI connector-internal	P3
4-pin connector-drive active LED	P5

USER CONFIGURABLE SETTINGS (FOR REV 1D)
Function		Location	Setting
»	Factory configured - do not alter	J1 & J2	pins 2 & 3 closed
»	Supports 64K PROM	J5	pins 2 & 3 closed
	Supports 128K PROM	J5	pins 1 & 2 closed
»	Hard Drive Interrupt IRQ14 enabled	J10	pins 1 & 2 closed
	Hard Drive Interrupt IRQ14 disabled	J10	open
»	Factory configured - do not alter	J11	pins 2 & 3 closed
»	Factory configured - do not alter	J12 & J13	pins 1 & 2 closed

USER CONFIGURABLE SETTINGS (FOR REV 1E)
Function		Location	Setting
»	Supports 64K PROM	J1	pins 2 & 3 closed
	Supports 128K PROM	J1	pins 1 & 2 closed
»	Factory configured - do not alter	J2	pins 2 & 3 closed
»	Factory configured - do not alter	J9	pins 2 & 3 closed
»	Hard Drive Interrupt IRQ14 enabled	J10	pins 1 & 2 closed
	Hard Drive Interrupt IRQ14 disabled	J10	open
»	Floppy drive enabled	J11	pins 2 & 3 closed
	Floppy drive disabled (Revisions prior to "1E" require special PROM's)	J11	pins 1 & 2 closed
»	Factory configured - do not alter	J12	pins 1 & 2 closed
»	DCE376 emulates primary controller position	J13	pins 1 & 2 closed
	DCE376 emulates secondary controller position	J13	pins 2 & 3 closed
	Factory setting for 3Px firmware	J14	pins 1 & 2 closed
	Factory setting for 2Px firmware	J14	pins 2 & 3 closed
»	Factory configured - do not alter	J16	open

CACHE CONFIGURATION (FOR REV 1D)
Size	J3	J4	J6	J7	J8	J9
256KB	pins 1 & 2	pins 1 & 2	open	pins 1 & 2	pins 1 & 2	pins 1 & 2
1024KB	pins 2 & 3	pins 2 & 3	open	pins 1 & 2	pins 2 & 3	pins 1 & 2
4096KB	pins 2 & 3	open	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3
Note:Pins designated should be in the closed position.

CACHE CONFIGURATION (FOR REV 1E)
Size	J3	J4	J5	J6	J7	J8
256KB	pins 1 & 2	pins 1 & 2	pins 1 & 2	open	pins 1 & 2	pins 1 & 2
1024KB	pins 2 & 3	pins 2 & 3	pins 1 & 2	open	pins 2 & 3	pins 1 & 2
4096KB	pins 2 & 3	open	2-3 closed	pins 2 & 3	pins 2 & 3	pins 2 & 3
Note:Pins designated should be in the closed position.