Disk Change / Ready | Samsung SFD-321B specification

FLOPPY DISK DRIVE SPECIFICATION

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MODEL	SFD-321B

5.4.5Disk Change / Ready

By selecting proper trace plugs, this signal line (pin #34) can be used for Ready or Disk Change line.

-. Ready

This line becomes active "LOW" when the drive is selected, a disk is clamped and the spindle motor is up to speed.

(after counting at least two Index pulses) Otherwise this line goes logical "HIGH" level.

-. Disk Change

This line is active "LOW" unless disk is clamped and a Step pulse is received when the drive is selected.

DRIVE SELECT
DISK IN	inserted	ejected
STEP
DISK
CHANGE		0.5 ㎲ Max
		0.5 ㎲ Max

0.5 ㎲ Max

SEMA ELECTRONICS CO.,LTD

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Samsung SFD-321B specifications Disk Change / Ready

Contents

OEM Manual Floppy Disk Drive Specification SFD-321B Safety Standards Packaging Description Application Disk Used Performance LOW High E M Density Standard Option Floppy Disk Drive Specification Specification Environmental Conditions E M Specification Reliability Power Supply Physical Specifications Page Page Page Power Interface Signal InterfaceSFD-321B*1 Signal Interface Connector Side Interface ConnectorsSignal Interface Connector and Cable Side Connector Connector Power Interface ConnectorPower Interface Connector and Cable Side Connector Signal Logic Input Level Output Level *1 Signal LevelRecommended Interface Circuit Density Select Input SignalsType Contents Drive Select 0 Direction Select Density Mode Transfer Rate TypMotor On Step Side Select Output SignalsWrite Gate Index Write Protect TrackRead Data MFM Disk Change / Ready Timing Diagram Safety Standards S1ARB00001 Label DescriptionSerial Number Label Marking Label DescriptionPage Page Trace Options Trace Name Description Selection of Bezel Type Other Options Buyer SelectionMode Color of Bezel, Button General Comment