IB02 Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
50-pin SCSI connector-external	J1
50-pin SCSI connector-internal	J2

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Not used	SW1/switch 3	off
»	Not used	SW1/switch 4	off
»	Factory configured - do not alter	SW2/switch 1	off
»	DMA Channel 1 selected	SW2/switch 2	on
	DMA Channel 3 selected	SW2/switch 2	off
»	SCSI parity check enabled	SW2/switch 6	on
	SCSI parity check disabled	SW2/switch 6	off
»	SCSI bus disconnect enabled	SW2/switch 7	on
	SCSI bus disconnect disabled	SW2/switch 7	off
»	Factory configured - do not alter	SW3/switch 1 & 2	off
»	Factory configured - do not alter	SW3/switch 8	off

INTERRUPT REQUEST
IRQ		SW2/switch 3	SW2/switch 4	SW2/switch 5
»	IRQ2	on	off	on
	IRQ5	off	on	off

DMA TRANSFER MODE
Mode	SW1/switch 1	SW1/switch 2
Single-byte (for use with PC, PC/XT)	on	on
8-byte (for use in a PC/AT with DOS)	on	off
Reserved	off	on
4-byte (for use in a PC/AT with multi-tasking)	off	off

SCSI ADDRESS
SCSI ID	SW2/switch 8	SW2/switch 9	SW2/switch 10
0	off	off	off
1	on	off	off
2	off	on	off
3	on	on	off
4	off	off	on
5	on	off	on
6	off	on	on
7	on	on	on

BIOS ADDRESS - SW3
Address	Switch 3	Switch 4	Switch 5	Switch 6	Switch 7
C800h	on	on	off	on	on
CA00h	off	on	off	on	on
CC00h	on	off	off	on	on
CE00h	off	off	off	on	on
D000h	on	on	on	off	on
D200h	off	on	on	off	on
D400h	on	off	on	off	on
D600h	off	off	on	off	on
D800h	on	on	off	off	on
DA00h	off	on	off	off	on
DC00h	on	off	off	off	on
DE00h	off	off	off	off	on
E000h	on	on	on	on	off
E200h	off	on	on	on	off
E400h	on	off	on	on	off
E600h	off	off	on	on	off
E800h	on	on	off	on	off
EA00h	off	on	off	on	off
EC00h	on	off	off	on	off
EE00h	off	off	off	on	off

MISCELLANEOUS TECHNICAL NOTES

For termination power, a # 1N5817 diode must be installed at socket CR2 and JP1 must be on.