HCWDWX1 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	8-bit ISA
Size:	Half-length, full-height card
Hard drive supported:	Two MFM ST506/412 drives
Floppy drives supported:	None

CONNECTIONS
Function	Location
34-pin control cable connector - hard drive	J1
20-pin data cable connector - drive 0	J2
20-pin data cable connector - drive 1	J3
External power connector	J4

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Factory configured - do not alter	J1/A	N/A
»	Factory configured - do not alter	J1/B	N/A
»	Factory configured - do not alter	J1/D	N/A
	Controller supports up to 16 heads	W6	pins 1 & 2 closed
	Controller supports up to 8 heads	W6	pins 2 & 3 closed

ADDRESS SELECT
I/O Address		Base Memory Address	W3	W4	W8
»	320 - 323h	C8000 - C9FFFh	closed	pins 2 & 3	pins 2 & 3
	324 - 327h	CA000 - CBFFFh	closed	pins 1 & 2	pins 1 & 2
	N/A	Disabled	open	N/A	N/A
Note: All pins designated should be placed in the closed position.

PRE-SELECTED DRIVE CONFIGURATIONS
				First Drive	Second Drive
	Capacity	Heads	Cylinders	J1/E	J1/F	J1/G	J1/H
»	10MB	4	306	open	open	open	open
	21MB	4	612	closed	closed	closed	closed
	10MB	2	612	open	closed	open	closed
	21MB	4	612	closed	open	closed	open

INTERRUPT SELECT
IRQ		W7	J1/C
»	IRQ5	pins 1 & 2 closed	open
	IRQ2	pins 2 & 3 closed	closed
Note: The location of jumper W7 is not identified in manufacturer documentation.