WD1007A-WA4 Hard Disk/Floppy Controller Settings and Configuration

Data Bus	16-bit
Card Size	Full-length, full-height card
Hard Drives supported	Two ESDI drives
Sector Interleave	1:1
Floppy drives supported	Two 360KB or 720KB drives

CONNECTIONS
Function	Function
4-pin connector-drive active LED	J1	34-pin data cable connector-floppy drive	J5
20-pin data cable connector-drive 1	J2	9-pin serial port - external	J6
20-pin data cable connector-drive 0	J3	25-pin parallel port - external	J7
34-pin data cable connector-controller board	J4

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Primary floppy address 3FX	W1/pins 1 & 2	closed
	Floppy controller disabled	W1/pins 2 & 3	closed
	Secondary floppy address 37X	W1/pins 3 & 4	closed
»	Primary hard disk address 1FX	W2/pins 1 & 2	closed
	Secondary hard disk address 17X	W2/pins 2 & 3	closed
»	Primary parallel port address 37X	W3/pins 1 & 2	closed
	Parallel port disabled	W3/pins 2 & 3	closed
	Secondary port address 27X	W3/pins 3 & 4	closed
»	Primary serial port address 3FX	W4/pins 1 & 2	closed
	Serial port disabled	W4/pins 2 & 3	closed
	Secondary serial port address 2FX	W4/pins 3 & 4	closed
»	Digital input register, non-latched	W9	open
	Digital input register, latched	W9	closed
»	WD 1007 mode	W16/pins 1 & 2	open
	WD 1005 mode	W16/pins 1 & 2	closed
»	Translation enabled	W16/pins 3 & 4	open
	Translation disabled	W16/pins 3 & 4	closed
»	ECC correction, 4 bytes	W16/pins 5 & 6	open
	ECC correction, 7 bytes	W16/pins 5 & 6	closed

BIOS ADDRESS SELECTION
Address		W13	W14	W15
»	C8000h-C9FFFh	N/A	Pins 2 & 3 closed	Pins 2 & 3 closed
	CA000-CBFFFh	N/A	Pins 2 & 3 closed	Pins 1 & 2 closed
	CC000-CDFFFh	N/A	Pins 1 & 2 closed	Pins 2 & 3 closed
	CE00-CFFFh	Closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	BIOS disabled	Open	N/A	N/A

MISCELLANEOUS TECHNICAL NOTES

Note: This controller has a built-in low-level format program. To enter the program, run the BIOS routine through the DOS DEBUG utility and at the prompt enter: G=C800:5.