Samsung Floppy Disk Drive Specifications and Manual for SFD-321B

FLOPPY DISK DRIVE SPECIFICATION		PAGE	13
		MODEL	SFD-321B
4. ELECTRICAL INTERFACE
4.1 Signal Interface
	Density Select	2
	In Use (Spare)
		4
	Drive Select 3 (Spare)
		6
	Index
		8
	Drive Select 0
		10
	Drive Select 1
		12
	Drive Select 2 (Spare)
		14
HOST	Motor On		FDD
		16
CONTROLLER	Direction Select		SFD-321B(*1)
SYSTEM	Step	18
		20
	Write Data
		22
	Write Gate
		24
	Track 00
		26
	Write Protect
		28
	Read Data
		30
	Side Select
		32
	Ready/Disk Change
		34
<Note>
(*1) All odd numbers : GND
4.2 Power Interface
HOST	+5 V	1
	+5 V Return (GND)
		2	FDD
CONTROLLER
	No Connection (GND)
POWER		3	SFD-321B
	No Connection
SUPPLY		4

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