SMILE/AT 006 Hard Disk/Floppy Controller Settings and Configuration

CONNECTIONS
Function	Location
25-pin SCSI connector-external	CN1

IRQ SELECT
IRQ		JP5	JP18	JP19	JP20	JP21	JP22	JP23	JP24
»	IRQ15	closed	open	open	open	open	open	open	open
	IRQ12	open	closed	open	open	open	open	open	open
	IRQ11	open	open	closed	open	open	open	open	open
	IRQ10	open	open	open	closed	open	open	open	open
	IRQ3	open	open	open	open	closed	open	open	open
	IRQ4	open	open	open	open	open	closed	open	open
	IRQ5	open	open	open	open	open	open	closed	open
	IRQ7	open	open	open	open	open	open	open	closed

64KB RAM ADDRESS
Address		SW1/1	SW1/2	SW1/3	SW1/4	SW1/5 - 8
»	C0000h	off	off	on	on	on
	90000h	off	on	on	off	on
	A0000h	off	on	off	on	on
	B0000h	off	on	off	off	on
	D0000h	off	off	on	off	on

32KB RAM ADDRESS
Address		SW1/1 & 8	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6 & 7
»	C0000h	off	off	on	on	on	on
	90000h	off	on	on	off	on	on
	98000h	off	on	on	off	off	on
	A0000h	off	on	off	on	on	on
	A8000h	off	on	off	on	off	on
	B0000h	off	on	off	off	on	on
	B8000h	off	on	off	off	off	on
	C8000h	off	off	on	on	off	on
	D0000h	off	off	on	off	on	on
	D8000h	off	off	on	off	off	on

ON-BOARD ROM ADDRESS
Address		SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7	SW1/8
»	D8000h	on	off	off	on	on	on	on
	C8000h	on	on	off	on	on	on	on
	C8800h	on	on	off	on	on	on	off
	CF800h	on	on	off	off	off	off	off
	D0000h	on	off	on	on	on	on	on
	DF000h	on	off	off	off	off	off	on
	DF800h	on	off	off	off	off	off	off

CACHE CONFIGURATION
Cache	JP16	JP17
8Kx8 memory chips	closed	open
32Kx8 memory chips	open	closed

CACHE CONFIGURATION
Size	JP30	JP31
32KB RAM supported	pins 1 & 2 closed	pins 1 & 2 closed
64KB RAM supported	pins 2-& 3 closed	pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTES

JP1-JP4, JP6-JP15, and JP25-JP28 are used to configure the BIOS EPROM size. The default is JP1, JP2, JP3, JP4, JP25, JP26, and JP27 on for 2KB.