SNB-C038 Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
25-pin parallel port-external	J1
9-pin serial port 1 (COM1/3/4)-internal	J2
9-pin serial port 2 (COM2/3/4)-external	J3
34-pin control cable connector-floppy drive	J4
40-pin IDE Interface (AT) connector	J5
4-pin connector-drive active LED	J6

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Floppy drive enabled	JP2	pins 1 & 2 closed
	Floppy drive disabled	JP2	pins 1 & 2 open
»	Hard drive enabled	JP2	pins 3 & 4 closed
	Hard drive disabled	JP2	pins 3 & 4 open
»	IOCHRDY signal enabled	JP2	pins 5 & 6 closed
	IOCHRDY signal disabled	JP2	pins 5 & 6 open

SERIAL PORT 1 (CN2) CONFIGURATION
COM		JP1/pins 1 & 2	JP1/pins 3 & 4
»	COM1 (3F8-3FFh)	closed	open
	COM3 (3E8-3EFh)	open	closed
	COM4 (2E8-2EFh)	closed	closed
	Disabled	open	open

SERIAL PORT 2 (CN3) CONFIGURATION
COM		JP1/pins 5 & 6	JP1/pins 7 & 8
»	COM2 (2F8-2FFh)	closed	open
	COM4 (2E8-2EFh)	open	closed
	COM3 (3E8-3EFh)	closed	closed
	Disabled	open	open

PARALLEL PORT (CN1) CONFIGURATION
LPT		JP1/pins 9 & 10	JP1/pins 11 & 12
»	LPT2 (378-37Fh)	closed	open
	LPT3 (278-27Fh)	open	closed
	Disabled	open	open

SERIAL PORT 1 (CN2) INTERRUPT REQUEST
IRQ		JP3/pins 1 & 2	JP3/pins 3 & 4
»	IRQ4	closed	open
	IRQ3	open	closed

SERIAL PORT 2 (CN3) INTERRUPT REQUEST
IRQ		JP3/pins 5 & 6	JP3/pins 7 & 8
»	IRQ3	closed	open
	IRQ4	open	closed

PARALLEL PORT (CN1) INTERRUPT REQUEST
IRQ		JP3/pins 9 & 10	JP3/pins 11 & 12
»	IRQ7	closed	open
	IRQ5	open	closed