IDC-747 Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
34-pin data cable connector-floppy drives	CN1
40-pin IDE (AT) Interface connector-drives 1 & 2	CN2
40-pin IDE (AT) Interface connector-drives 3 & 4	CN3
4-pin connector-drive active LED	CN4

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Normal I/O decoder speed	JP1	pins 1 & 2 closed
	Fast I/O decoder speed	JP1	pins 2 & 3 closed
»	Hard drive port address is 1F0-1F7h, 3F6-3F7h	JP3/jumper 4	closed
	Hard drive port address is 170-177h, 376-377h	JP3/jumper 4	open
»	Floppy drive enabled	JP3/jumper 5	closed
	Floppy drive disabled	JP3/jumper 5	open
»	Factory configured - do not alter	JP3/jumper 6	closed
»	Factory configured - do not alter	JP3/jumper 7	N/A

BIOS ADDRESS
Address		JP3/jumper 1	JP3/jumper 2	JP3/jumper 3
»	D800h	open	closed	closed
	D000h	open	open	closed
	C800h	open	closed	open
	Disabled	open	open	open

INTERRUPT REQUEST
IRQ		JP2/jumper 1	JP2/jumper 2	JP2/jumper 3	JP2/jumper 4
	IRQ5	closed	open	open	open
	IRQ12	open	closed	open	open
»	IRQ14	open	open	closed	open
	IRQ15	open	open	open	closed

MISCELLANEOUS TECHNICAL NOTES

This card's cache feature supports 256KB, 1MB, or 4MB SIMM's; making the maximum cache capacity 16MB. The same size SIMM must be installed in each socket of a bank and Bank 0 must be filled for proper operation of the controller.