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Ciprico Rimfire 3880 manual

Models: Rimfire 3880

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Chapter 2 Hardware Essentials

Address Buffer Port

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Control Field

Use this byte-wide field to tailor the RF3880 adapter’s use of the system bus.

With it, you can set-up the adapter to:

•Transfer data in 16-bit, 32-bit or 64-bit mode on the VMEbus.

•Byte or word swap command structures to be compatible with the byte and word ordering of either Intel or Motorola architectures.

Note

For any of the control bits to be considered valid by the adapter, the SET bit must be one.

Note

The RF3880 supports 64-bit wide block transfers for only those Address Modifiers listed in the VME specification.

Byte and word swapping are further discussed in Chapter 8, Details of Usage.

The bit meanings of the Control Field are as follows:

7	6	5	4	3	2	1	0
SET	0	0	0	0	WID	WSC	BSC

Table 7: Control Field of Address Buffer Port

BSC Byte Swapping Control - Defines whether high and low bytes of a word will be swapped during transfer of status and parameter blocks.

0 ⇒ No swapping.

1 ⇒ Change byte order.

WSC Word Swapping Control - Defines whether high and low words of a double word will be swapped during transfer of status and parameter blocks.

0 ⇒ No swapping.

1 ⇒ Change word order.

WID WIDth of data transfers - Determines (in conjunction with VMEbus Address Modifier) the width of data transfers across the system bus.

0 ⇒16-bit data transfers.

(forces 16-bit transfers regardless of Address Modifier used.)

1 ⇒32-bit or 64-bit data transfers, dependent on the Address Modifier used.

SET select new control SETtings - Determines whether the rest of the bits in the Control Field should be applied to adapter operation.

0 ⇒ ignore all other bits.

1 ⇒ apply bit values to next transfer.

User’s Guide

21020285 D

Image 33

Ciprico Rimfire 3880 manual

Contents

Rimfire 3880 Scsi Host Bus Adapter Page Page 21020285 D User’s Guide Preface Organization Initiator Mode Pass-through Commands Describes OrganizationOverview of the RF3880 User’s Guide Notational Graphic ConventionsConventions Graphic Representation of Parameter Block21020285 D Reference Documents Reference DocumentsContents Scsi ID Status Block Format LUN LUN Table of Contents Description of Fields Command Identifier Diagnostic/Self-test 09H Table of Contents Table of Contents Introduction Summary Specifications Index O d u c t O v e r v i e w About Rimfire Design Latest Bus SpecificationsBuffering scheme Product Overview About the Rimfire 3880 DesignBuffer Management Target Mode ImplementationProduct Overview What next? What next?R d w a r e E s s e n t i a l s Introduction SummaryHardware Essentials Introduction Intel 80186XL Hardware Structure DescriptionQLogic FAS Pipelined System Interface Data BufferBlock Diagram Hardware EssentialsGenerator blocks are part of the PSI Choosing an Address Modifier Board AddressingChoosing a VMEbus Address Hardware Essentials Board AddressingOverview of the Ports Hardware Port AddressesHardware Essentials Hardware Ports General Hardware Port AddressesHardware Essentials Hardware Ports General Hardware Essentials Address Buffer Port Address Buffer PortAddress Buffer Port Writes Address Modifier FieldControl Field of Address Buffer Port Hardware Essentials Address Buffer Port Control FieldSingle Command Structure Address Fields Channel Attention PortHardware Essentials Channel Attention Port Channel Attention Channel FormatStatus Port Reset Status Port Reset FormatStatus Port Hardware Essentials Status PortStatus Port Error Codes Status Port Error CodesStatus Port General Status Port General FormatChapter Hardware Essentials Status Port Status Port Catastrophic Error CodesHardware Essentials Reset Port Reset PortHardware Essentials Descriptions of Port Usage Descriptions of Port UsageHardware Essentials R d w a r e Installation Hardware Installation Introduction Overview Installation Process Hardware Installation Unpacking the Board Step Unpacking BoardShipping Damage Unpacking the Board Step Jumpers Termination Hardware Installation Jumpers and TerminationDefault Jumper Settings Configuration JumpersBus Request/Grant and Sysfail Jumpers Bus Request/ Grant JumperJumper SysfailExample Example Base Address Jumper SettingsAddresses For the Address Modifier JumperScsi bus Termination Replacement FuseGeneral Steps Hardware Installation Board InsertionPower-up Sequence Hardware Installation Apply power and observe LEDsMeaning LED’s Error Conditions Hardware Installation Configure and Connect Scsi Devices Step Configure Connect Scsi DevicesSelectable Options OptionsCabling Scsi Cable ConnectorHardware Installation M m a n d O p e r a t i o n Command Operation Introduction What the Adapter must accomplish Command Operation What the Adapter must accomplishParameter BaseBlock ParameterCommand Descriptor Block Base Status Block Command Operation Base Status BlockStatus Block Format Base Status BlockCommand Operation Base Status Block Multiple Status Blocks Setting up Unit OptionsFormat Single Command Structure Single Command StructureCommand Operation Single Command Structure Parameter BlockBit-meanings of Interrupt Field Command Operation Single Command Structure InterruptCommand Operation Using a Single Command Structure Using a Single Command StructureExample Start Command List Board-control Some Example Single CommandsCommand Operation Some Example Single Commands Command Identifier = 822F4HInterrupt = 0300H Command = 01H21020285 D User’s Guide Example Pass-through command PB Example 2Inquiry Pass-through CommandCommand Operation Command Operation Some Example Single Commands Command List Structure Format Command List StructureDescription of the Fields Number of Status Blocks Number of Parameter BlocksParameter Block Space Status Block SpaceCommand Operation Creating the Command List Structure Creating Command List StructureCommand Guidelines Using a Command List StructureCommand Operation Using a Command List Structure Index GuidelinesAdding a Parameter Block Removing a Status Block Command Operation Example ‘C’ Routines for Command List Example ‘C’ Routines for Command ListStcdone Command Operation Example ‘C’ Routines for Command List Command Operation I t i a t o r t h r o u g h D e P a s s C o m m a n d s Introduction Summary Initiator Mode Pass-through Commands IntroductionInitiator Pass- through Parameter Block Format Command FormatTarget ID Address ModifierBit-meanings of Flags-1 Field Setting DBV DAT and DIR Bits Using Table Values Example DAT and DIR bit settingsDIR and DAT Settings, Vendor-unique DAT and DIR Automatic Settings Table of DAT DIR Automatic Settings4EH Initiator Mode Pass-through Commands Flags-2 Bit-meanings of Flag-2 FieldMeaning of TAG Opts Bits Scsi Command Descriptor Block VME Memory AddressTransfer Count Message Format Pass-through Message Parameter BlockMessage Code Description of Fields Scsi Pass-through Status BlockBit-meanings of Flags Field Error Scsi Status Field during Unexpected Scsi Phase Bit-meanings of Scsi Status FieldMeaning of Status Byte Code Meaning of Status Byte Unexpected Phase Three signals. This is described belowDefault Ordering of Sense Bytes Up to 32 Sequential Sense BytesOrdering of 1st 16 Sequential Sense Bytes Example of Selected Sense Bytes Initiator Mode Pass-through Commands R g e t t h r o u g h D e P a s s C o m m a n d s Target Mode Pass-through Commands Introduction Target Mode Pass-through Commands Overview of Target Mode What is Target Mode?Target Mode Pass-through Commands Adapter must have a means of handling Scsi protocol issuesWhat must the adapter accomplish in Target Mode? New commands Overview Special Target Mode CommandsTarget Mode Enable Command Target Mode Disable CommandScsi Command Descriptor Block Groups Command Descriptor Block Group CodesCommand Operation Sequence Events Enabling Target ModeTarget Mode Pass-through Commands Command Operation Sequence Events Receiving a Command From an Initiator Sequence of Events Responding to an Initiator Target Selection Data Structure Target Selection Data StructureMeaning of Flags Field Meaning of Scsi Flags Field Identify Message Received Command Descriptor Block LengthInitiator Identifier Message Bytes ReceivedSemaphore Field Target Mode Response Command Target Mode Response Parameter BlockInitiator ID ⇒ Target Mode Response command Meaning of Response Control Flags Field Status or 1st Message Byte Message ByteTarget Mode Response Command Status Block First TM Response Command Status BlockSecond TM Response Command Status Block Meaning of Status Block Flags Field Meaning of Command Status Flags Field Message Byte Received Target Mode Error Sequence CodesA r d c o n t r o l C o m m a n d s Board-control Commands Introduction Board-control Commands Using the Reference Using the ReferenceGeneral Status Block Board-control Commands General Status BlockGeneral Status Block Format General Status BlockList of Commands Board-control Commands List of CommandsBoard-control Commands Start Command List Parameter Block Board-control Commands Start Command List 01HCommand List Memory Address Adapter IDCommand Code Board-control Commands Start Command List 01H InterruptStop Command List Parameter Block Board-control Commands Stop Command List 02HBoard-control Commands Identify 05H Identify Command Parameter BlockIdentify 05H Identify Command Status Block Identify Command Status BlockEngineering Revision Firmware RevisionOption Flags Field Identify Status Block Board-control Commands Identify 05H Option FlagsAdapter Scsi ID Bits Day, Month, YearBoard-control Commands Board Statistics 06H Board Statistics Command Parameter BlockBoard Statistics 06H Options Field Board-control Commands Board Statistics 06H OptionsTotal Scsi Commands issued to an ID Total Commands ProcessedTarget Mode Selection Count Statistics Data StructureBoard-control Commands General Options 07H Command Format Description of FieldsGeneral Options Command Parameter Block General Options 07HBus Throttle Field Values Bus ThrottleSelect Flags Select Flags ByteCommand code for this command is 07H Unit Options Command Parameter Block Board-control Commands Unit Options 08HUnit Options 08H Unit Scsi IDRetry Limit Board-control Commands Unit Options 08H Disconnect Time-outRetry Control Retry ControlSelect Time-out Unit FlagsUnit Flags Sense Count Initiator ModeSelected Sense Bytes Example Selection of Sense Bytes Example Use of Selected Sense Bytes FieldsBoard-control Commands Diagnostic/Self-test 09H Diagnostic/ Self-test 09HDiagnostic/Self-test Parameter Block Diagnostics Command Test Flags FieldCommand code for this operation is 09H Diagnostic Command Status Block Flags ByteBit-meanings of Flags Byte in Status Block Board-control Commands Target Mode Enable 0AH Target Mode Enable 0AHTarget Mode Enable Parameter Block Pointer to the Target Selection Data StructureMeaning of Selection Interrupt Field Board-control Commands Target Mode Disable 0BH Target Mode Disable 0BHTarget Mode Disable Parameter Block Meaning of Flags-1 FieldCommand Identifier of CMD to be Aborted Board-control Commands Abort 0DHAbort 0DH Abort Parameter BlockScsi Hard Reset 10H Board-control Commands Scsi Hard Reset 10HScsi Hard Reset Parameter Block Board Information 15H Board-control Commands Board Information 15HBoard Information Data Structure Board-control Commands Board Information 15H OptionsBoard Information Options Field Board Information Data StructureBoard Information Select Flags Field Board-control Commands Board Information 15H Bus Throttle RST Reset Jumper Board-control Commands Board Information 15H Option FlagsBoard-control Commands Board Information 15H Termination Scsi Cfig BlockAdapter Base Model # Per Target Sense Count Per Target Retry LimitPer Target Device Flags Bit-meanings of Device Flags FieldPer Target Synch Period Per Target Selected Sense Bytes Per Target WidthBoard-control Commands Extended Board Statistics 16H Extended Board Statistics 16HExtended Board Statistics Parameter Block Extended Board Options Field Board-control Commands Extended Board Statistics 16H OptionsNumber of Scsi Parity Errors Total Commands IssuedPer Scsi Target Number of Commands Extended Statistics Data StructureBoard-control Commands Per Scsi Target Queue Full CountPer Scsi Target Maximum Queued Board-control Commands Extended Unit Options 18H Extended Unit Options 18HExtended Unit Options Parameter Block Extended Unit Options Data Structure Extended Unit Options Data Structure Description of FieldsBit-meanings of Retry Control Field Unit Flags of Extended Unit Options Board-control Commands Extended Unit Options 18H Unit FlagsBoard-control Commands Extended Unit Options 18H Selected Sense Bytes T a i l s o f U s a g e Details of Usage Introduction Details of Usage Byte and Word Swapping Need for SwappingExample of Memory Differences Variations in Intel and Motorola MemoryPass-through command Parameters Motorola Ordering Intel OrderingCommand Structure Swapping RF3880 Swapping OptionsIntel Ordered Parameter Block Data Swapping Sharing TapesDual Initiators Tagged How to UseQueuing TaggedDetails of Usage Tagged Queuing Choose a tag message Meaning of Flags-2 FieldRF3880 sends the tag message Queue Tag Numbers UsageQueue Full Status Message RejectTarget Mode Usage Scsi Protocol Handling Scsi Bus Reset HandlingSelection Queue Abort Command Handling Synchronous Data Transfer Requests Target Mode Disable Command HandlingWide Data Transfer Requests Message parity errors Parity error conditionsInitiator-detected Error messages Target RoutinesDisconnect Privilege Message HandlingMessage Bytes Received from the Initiator 21020285 D User’s Guide User’s Guide 21020285 D Details of Usage Error codes Status Block Error Codes Appendix a Error Codes IntroductionCodes Reported in Status Block and Status Port Error Codes Appendix a Error Codes Summary2BH Appendix a Error CodesA1H Status Port Error Codes Catastrophic Error CodesAppendix a Error Codes Status Port Error Codes Self-test Error Codes Diagnostic Command 8CH Self-test Status Port Error CodesB l e s a n d C o n n e c t o r s Appendix B Cables and Connectors Introduction Appendix B Cables and Connectors Scsi Connector ConnectorCable Connector Pin-outs for the RF3886 Maximum Cable LengthVMEbus Connector Pinouts Appendix B Cables and Connectors VMEbus Connector PinoutsP1 Connector Retry P2 ConnectorAppendix B Cables and Connectors Specification s Appendix C Specifications Introduction Specifications Appendix C SpecificationsSpecifications for the Rf3880 Appendix C Specifications 21020285 D User’s Guide Fault s Appendix D Defaults Introduction Appendix D Defaults Hardware Defaults Hardware DefaultsHardware Defaults Jumpers Defaults for Hardware PortsDefaults Appendix D DefaultsCommand Defaults TAG Appendix D Defaults S i g n D i f f e r e n c e s Appendix E Design Differences Introduction Appendix E Design Differences Features no longer Supported Features no longer SupportedScatter/Gather Operations Byte and Word Swapping of DataAppendix E Design Differences Implementation Differences Status Port Error Codes and Test FlagsWidth of Data Transfers on the VMEbus Extended Scsi ID’sScsi Data Widths Block Mode TransfersOdd-byte Addressing How to Maximize PerformanceD e Index User’s Guide 21020285 D PSI Scsi ID Index Page 21020285 D