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Fujitsu 600C manual Bus signal drive conditions, 3 Bus phases vs. signal drive sources 1/2

Models: 600C

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4.2.3Bus signal drive conditions

SCSI devices drive signals of the SCSI bus. The types of SCSI devices are summarized in the following table, showing the signals that they can drive for each operating phase of the interface.

There are two kinds of signal driving methods, OR tied and NON-OR tied, as shown in Table 4.2. During an interface operating sequence. the BSY signal could be driven simultaneously by two or more SCSI units when the data bus is in the ARBITRATION or RESELECTION phase. This situation also occurs with the RST signs (Reset). These two signals must be ORtied. For other signals, either of the two methods may be used: further more, different drive methods may coexist for a signal on the bus.

Table 4-3Bus phases vs. signal drive sources (1/2)

Signal				C/D			DB7 to 0
Bus phase	BSY	SEL	'10	MSG	REQ	ACK	DBP	ATN	RST


BUSFREE	N	N	N	N	N	N	N	N	A

ARBITRATION	A	W	N	N	N	N	ID	N	A

SELECTION	I&T	I	N	N	N	I	I	I	A

RESELECTION	l&T	T	T	T	T	I	T	I	A

COMMAND	T	N	T	T	T	I	I	I	A

DATAIN	T	N	T	T	T	I	T	I	A

DATAOUT	T	N	T	T	T	I	I	I	A

STATUS	T	N	T	T	T	I	T	I	A

MESSAGE IN	T	N	T	T	T	I	T	I	A

MESSAGE OUT	T	N	T	T	T	I	I	I	A

N:The signal shall be released, since it is not being driven by any SCSI device.

A:The signal shall be driven by all SCSI devices that are actively arbitrating.

I:If driven, this signal be driven only by the active initiation

T:If the signal is driven, it shall be driven only by the active target.

W:The signal shall be driven by the one SCSI device that wins arbitration.

ID:	A unique data bit (the SCSI ID) shall be driven by each SCSI device that is actively arbitrating.
	The other seven data bits shall be released (shall not be driven) by this SCSI device. The parity bit
	(DB(P)) may be released or driven to the true state, but shall never be driven to the false state
	during this phase.
I&T:	The initiator and target drive the signal according to the interface operating sequence. The
	RESELECTION phase includes a sequence in which the initiator and target simultaneously drive
	the signal.

The signal shall be driven by the initiator, target, or both, as specified in the SELECTION phase and RESELECTION phase.

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Fujitsu 600C manual Bus signal drive conditions, 3 Bus phases vs. signal drive sources 1/2

Contents

Fujitsu ScanPartner 600C OEM Manual Fujitsu IncVersion Page Table of Contents 2. SPECIFICATIONS1. GENERAL 3. OPERATION5. DIAGNOSTICS 5.3.4 Group 3 error flowchart no paper in ADF paper tray Page 1. General 1.1 GeneralFigure 1-1 System Block Diagram 1.2 Device Configuration 1.2.1 Outer ViewFigure 1-2 ScanPartner 600C Outer View 1.2.2 Components 2. Specifications 2.1 Functional Specifications2.1 Functional Specifications 2.2 Environmental Specifications Table 2-1 Functional SpecificationsEnvironmental Specifications Table 2-2 Environmental SpecificationsSpecifications Remarks3. OPERATION 3.1 Removing the Shipping Bracket1. Remove the shipping retainer 2. Fasten the shipping retainer 3.2 Power On/Off 3.3 Indication PanelFigure 3-1 Power Switch Figure 3-2 Indication Panel3.4 Setting the SCSI ID and Connecting the Interface Cable Table 3-1 Names and functions of the indicatorsFigure 3-3 Signal cable connection Content3.4.1 SCSI Cable Connection Host PC 3.5 Paper Specifications 3.5.1 Paper Size3.5.2 Paper conditions Figure 3-4 Paper size specifications3.5.2.2 FIatbed 3.5.2.3 Items to avoid3.5.3 Readable area Figure 3-5 ADF readable area3.6 Document Setting Method 3.6.1 Flatbed3.6.1.1 When the document size is of letter/A4 size or smaller Figure 3-6 Flatbed reading3.6.2 ADF 3.6.1.2 When the document is a thick book3.6.2.1 Setting the ADF paper chute Figure 3-7 Setting the ADF paper chute3.6.2.2 Placing the documents on the ADF paper chute Figure 3-8 Placing the document on the ADF paper chutea Angling the document sheets b Separating the sheets for easy feeding3.7 Cleaning 3.7.1 Cleaning the document cover and the document glass3.7.2 Cleaning inside the ADF Page 4. INTERFACE 4.1 Physical Specifications 4.2 SCSI Bus 4.3 Bus Phases 4.4 Commands4.5 Status STATUS phase target initiator 4.6 Messages 4.7 Command Sequence 4.8 Status Transition of Logical Unit3. Commands The following commands are supported by this scanner 4.1 Physical Specifications 4.1.1 Connection4.1.2 Physical Specification 4.1.3 TerminationSpecifications Table 4-1 SCSI physical specifications4.1.4 Pin assignments Signal NameSignal Name Pin Number4.2.1 System configuration 4.2 SCSI Bus4.2.1.1 System configuration 4.2.1.2 Addresses of SCSI devices4.2.2 Bus signals Table 4-2 Bus signals4.2.3 Bus signal drive conditions Table 4-3 Bus phases vs. signal drive sources 1/24.3 Bus Phases Table 4-4 Method of driving the interface signalFigure 4-2 Phase sequence Table 4-5 Signal delay times definition TimeDefinition Assertion4.3.1 BUS FREE phase Table 4.5 Signal delay times definitionTime definition4.3.2 ARBITRATION phase others4-12 Page 4.3.3 SELECTION phase 4.3.4 INFORMATION TRANSFER phases Table 4-6 INFORMATION TRANSFER phase typePhase DB7 to 9,P4.3.4.1 Asynchronous information transfer a Asynchronous transfer from target to initiatorb Asynchronous transler from initiator to target 4.4 Commands b Relative addressing is not supported4.4.1 RESERVE UNIT command Table 4-7 CommandsCommand d A bit and field described as Reserved are4.4.1.1 RESERVE UNIT command COMMAND phase initiator Õ target a TP third party Byteb TPID third party device ID Byte 4.4.2 RELEASE UNIT command 4.4.2.1 RELEASE UNIT command COMMAND phase initiator → target4.4.3 INQUIRY command 4.4.3.1 INQUIRY command COMMAND phase initiator → targetTable 4-10 INQUIRY command Bus phasea EVPD enable vital product data Byte b Page code ByteCAllocation length Byte EVPD4.4.3.2 Inquiry data DATA IN phase target → initiator l sftRst Soft Reset Byte e ISO version, ECMA version, ANSI approved version Bytef Asynchronous event notification capability AENC Byte g Response data format Byte4.4.4 REQUEST SENSE command 4.4.4.1 REQUEST SENSE command COMMAND phase initiator → targetTable 4-11 REQUEST SENSE command Bus phase4.4.4.2 Sense data DATA EN phase target → initiator b Error code Bytea Allocation length Byte a Valid Bytef ILI incorrect length indicator Byte d FM file mark Bytee EOM end of medium Byte g Sense key Byte4.4.5 SEND DIAGNOSTIC command j Command-specific information bytes Bytes 8 to BTable 4-14 SEND DIAGNOSTIC command Bus phase4.4.5.1 SEND DIAGNOSTIC command COMMAND phase initiator → target Table 4.14 SEND DIAGNOSTIC commandBus phase Step4.4.6 TEST UNIT READY command 4.4.5.2 Contents of self-testBus phase 4.4.5.3 Results of self-test4.4.6.1 TEST UNIT READY command COMMAND phase initiator → target 4.4.6.2 AcknowledgmentByte Operation code4.4.7 SET WINDOW command 4.4.7.1 SET WINDOW command COMMAND phase initiator → targetTable 4-16 SET WINDOW command Bus phase4.4.7.2 Window date DATA OUT phase initiator → target a TRANSFER LENGTH Bytes 6 toa Header b Window descriptor block e X, Y resolution XR, YR Bytes 2 to 3 and 4 to c Window identifier Byted Auto Byte f Upper left X,YULX, ULY Bytes 6 to 9, A to DValues under 0 in are omitted h Brightness ByteRemarks I Bit per pixel Byte 1A n RIF reverse image format Byte 1D, bitp Bit ordering Bytes 1E to 1F m Halftone pattern Bytes lB to 1C lB reserved4.4.7.3 Update of ScanPartner 600C OEM manual 4.4.7.4 B&W Scanning Vender unique parametersq Compression type, argument Bytes 20 to Table 4-18 Vender unique parameters byte 28 and later4.4.7.4.1 Vendor unique identification code Byte Status B00001 CHECK CONDITION Sense Key X05 ILLEGAL REQUEST4.4.7.4.2 Paper size byte Specified a Paper Size. Set paper size used only in ADF mode4.4.7.5 Color Scanning Vender unique parameters Table 4-19 Vendor unique parameters byte 28 and latera ADF Byte 2A, Bit b Source Byte 2A, Bitd Highlight value Byte 2B e Shadow value Byte 2Cf Line width Byte 2D to 2E Specifies line width in bytes for the current scan page4.4.8 OBJECT POSITION command 4.4.8.1 OBJECT POSITION command COMMAND phase initator → target a Position type BytePOSITION TYPE Position type4.4.8.2 Acknowledgment b Unload objectc Load object d Count Bytes 2 to4.4.9 READ command Bus phase4.4.8.3 ADF sequence Step4.4.9.1 READ command COMMAND phase initiator → target a Data type code Byteb Data type qualifier Bytes 4 to c Transfer length TL Bytes 6 to4.4.9.2 DATA IN phase target → initiator a Image data DATA TYPE CODE =b For binary data C Pixel size data DATA TYPE CODE =4.4.10 Scan command 4.4.10.1 SCAN Command phase initiator → targetBus phase Step4.5 Status STATUS phase target initiator CodeStatus of unit 4.6 Messages 4.6.1 ATN detectionPhase Status of unit4.6.2 Message types 4.6.2.1 COMMAND COMPLETE X00 MESSAGE IN phase target → initiator4.6.2.3 ABORT X06 MESSAGE OUT phase initiator → target 4.6.2.4 MESSAGE REJECT X07 MESSAGE IN/OUT phase initiator → targetATN detection phase Action4.6.2.5 NO OPERATION X08 MESSAGE OUT phase initiator → target 4.6.2.6 MESSAGE PARITY ERROR X09 MESSAGE OUT phase initiator → target4.6.2.7 BUS DEVICE RESET X0C MESSAGE OUT phase initiator → target Phase when ATN is detected4.6.2.8 IDENDIFY X80 TO XFF MESSAGE OUT phase initiator → target 4.7 Command Sequence 4.7.1 Initial sequence4.7.3 READ command sequence 4.7.2 Read sequence4.7.2.1 Read sequence for B&W mode 4.7.3.1 Single READ4.7.3.2 Multiple READ 4.8 Status Transition of Logical Unit 4.9 Error Table ERRORHARD ILLEGAL4.10 Items for Specifying Window Imagecomposition BinaryPage 5. Diagnostics 5.1 Online diagnostics5.1 Online Diagnostics 5.2 Offline Diagnostics 5.3 Diagnostic Flowcharts5.2 Offline diagnostics Error indicationTable 5-2 Offline diagnostics results Ready LED5.3 Diagnostic flowcharts 5.3.1 Group 1 error flowchart Lamp assembly5.3.2 Group 2 error flowchart Flatbed/ADF motor 5.3.3 Group 3 error flowchart paper in ADF paper tray 5.3.4 Group 3 error flowchart no paper in ADF paper tray ADF paper-out