ISA-151A Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
34-pin control cable connector-floppy drive	CN1
40-pin control cable connector-hard drive	CN2
34-pin control cable connector-floppy tape drive	CN3
4-pin connector drive active LED	CN9

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	IOCHRDY signal disabled	JP1	open
	IOCHRDY signal enabled	JP1	closed
»	DMA request disabled	JP2/jumper 1, 2, & 3	open
	DREQ 5 (DMA request)	JP2/jumper 1	closed
	DREQ 6 (DMA request)	JP2/jumper 2	closed
	DREQ 7 (DMA request)	JP2/jumper 3	closed
»	DMA acknowledge disabled	JP3/jumper 1, 2, & 3	open
	DACK 5 (DMA acknowledge)	JP3/jumper 1	closed
	DACK 6 (DMA acknowledge)	JP3/jumper 2	closed
	DACK 7 (DMA acknowledge)	JP3/jumper 3	closed
»	DMA signal to the ATA adaptor disabled	JP4	open
	DMA signal to the ATA adaptor enabled	JP4	closed
»	ATA Hard Disk mode select	JP5	open
	ATA Tape Mode select	JP5	closed
»	BIOS is IBM, AMI or equivalent (Polled)	JP6	pins 2 & 3 closed
	BIOS is Phoenix (Interrupt Driven)	JP6	pins 1 & 2 closed
»	Factory configured - do not alter	JP7	open
»	Floppy drive enabled	JP8	closed
	Floppy drive disabled	JP8	open
»	Back to back I/O delay enabled	JP10	closed
	Back to back I/O delay disabled	JP10	open
»	Floppy drive port address is 3F0-3F7h	JP11	open
	Floppy drive port address is 370-377h	JP11	closed
»	Hard drive port address is 1F0-1F7h	JP12	open
	Hard drive port address is 170-177h	JP12	closed
»	IRQ14 (hard drive interrupt request)	JP13	pins 2 & 3 closed
	IRQ15 (hard drive interrupt request)	JP13	pins 1 & 2 closed