Samsung Comprehensive Guide to SFD-321B Floppy Disk Drive Specifications and Options
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FLOPPY DISK DRIVE SPECIFICATION

PAGE

27

 

 

MODEL

SFD-321B

 

 

9. OPTION SELECTION

FDD can be modified for different functions than the standard specification. These modifications should be implemented by the factory according to the request of the customers.

9.1 Trace Options

By putting a chip-resistor onto a proper trace, FDD can be used for the following different functions.

Trace Name

Description

 

 

DS0

Activate Drive Select 0 line

DS1

Activate Drive Select 1 line

 

 

DC

Activate Disk Change Signal

RDY

Activate Ready Signal

 

 

OPA

For 3 Mode usage

OPB (*1)

For 1.6MB usage

 

 

<Note>

(*1) Both "OPA" and "OPB" open : 2 Mode (1MB / 2MB)

"OPB" is connected and "OPA" is open : 2 Mode (1MB / 1.6MB)

"OPA" is connected and "OPB" is open : 3 Mode (1MB / 1.6MB / 2MB)

SEMA ELECTRONICS CO.,LTD

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Contents OEM Manual Floppy Disk Drive Specification SFD-321BSafety Standards Packaging Description Application Disk UsedPerformance LOW High E M Density Standard OptionFloppy Disk Drive Specification Specification Environmental ConditionsE M Specification ReliabilityPower 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 Input Signals Type ContentsDensity Select Drive Select 0Density Mode Transfer Rate Typ Motor OnDirection Select StepOutput Signals Write GateSide Select IndexWrite Protect TrackRead Data MFM Disk Change / Ready Timing Diagram Safety Standards Label Description Serial Number Label MarkingS1ARB00001 Label DescriptionPage Page Trace Options Trace Name DescriptionOther Options Buyer Selection ModeSelection of Bezel Type Color of Bezel, ButtonGeneral Comment
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