Motorola MVME197LE manual Scsi Interface, Scsi Termination

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Functional Description

The Ethernet Station Address is displayed on a label attached to the VMEbus P2 connector. In addition, the eight bytes including the Ethernet address are stored in the configuration area of the BBRAM, with the two lower bytes of those set to 0. That is, 08003E2XXXXX0000 is stored in the BBRAM. At an address of $FFFC1F2C, the upper four bytes (08003E2X) can be read. At an address of $FFFC1F30, the lower four bytes (XXXX0000) can be read. Refer to the BBRAM, TOD Clock memory map description later in this chapter. The MVME197LE debugger has the capability to retrieve or set the Ethernet address.

If the data in the BBRAM is lost, the user should use the number on the VMEbus P2 connector label to restore it. Refer to the MVME197BUG 197Bug Debugging Package User’s Manual.

The Ethernet transceiver interface is located on the MVME197LE main module, and the industry standard connector is located on the MVME712X transition module.

Support functions for the 82596CA are provided by the PCCchip2. Refer to the 82596CA LAN Coprocessor User’s Manual and to the PCCchip2 chapter in the MVME197LE, MVME197DP, and MVME197SP Single Board Computers Programmer’s Reference Guide for detailed programming information.

SCSI Interface

The MVME197LE provides for mass storage subsystems through the industry- standard SCSI bus. These subsystems may include hard and floppy disk drives, streaming tape drives, and other mass storage devices. The SCSI interface is implemented using the NCR 53C710 SCSI I/O controller.

Support functions for the 53C710 are provided by the PCCchip2. Refer to the NCR 53C710 SCSI I/O Processor Data Manual and to the PCCchip2 chapter in the MVME197LE, MVME197DP, and MVME197SP Single Board Computers Programmer’s Reference Guide for detailed programming information.

SCSI Termination

The system configurer must ensure that the SCSI bus is terminated properly. On the MVME197LE, the terminators are located on the P2 transition board. The +5V power to the SCSI bus termination resistors is provided by the P2 transition board.

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Contents MVME197LE Restricted Rights Legend Document Terminology PrefaceBIT Document Title Motorola Publication Number Related DocumentationPage Page Safety Summary Safety Depends on YOU Contents Hardware Preparation and Installation Using the 197Bug Debugger Appendix a Configure and Environment Commands List of Figures Xiv List of Tables Xvi Overview IntroductionRequirements Features Specifications Block DiagramMVME197LE Specifications Block Diagram Memory Array Bus Data Bus 256 BusSwitchMC88110 Address Data MUX Address Mezzanine Address BusFunctional Description Front Panel Switches and IndicatorsOnboard Dram Data Bus StructureMC88110 MPU Flash MemorySerial Port Interface Battery Backup RAM and ClockVMEbus Interface InterfacesEthernet Interface Printer InterfaceScsi Termination Scsi InterfacePeripheral Resources Processor Bus Memory Map ConnectorsMemory Maps Interrupt SourcesDramsize Processor Bus Memory MapLocal Devices Memory Map Address Range Devices Accessed Port SizeVMEbus Accesses to the Local Peripheral Bus VMEbus Memory MapVMEbus Short I/O Memory Map Hardware Preparation Unpacking InstructionsHardware Preparation and Installation VMEbus Connector P1 Configuration Switches Switch S1Configuration Switch S1 General Information S1-1 to S1-8 OFF -- All Ones Factory Configuration Switch S6 Installation InstructionsMVME197LE Module Installation System Considerations MVME197LEIG/D1 Hardware Preparation and Installation Description of 197Bug Overview of M88000 FirmwareInstallation and Start-up Comparison With M68000-Based Firmware197Bug Implementation Ote Terminal to make sure XON/XOFF handshaking is enabledAutoboot Network Boot ROMbootRestarting the System ResetBreak AbortMemory Requirements SYSFAIL* Assertion/NegationMPU Clock Speed Calculation DEL Terminal Input/Output ControlDisk I/O Support Blocks Versus SectorsDevice Probe Function Disk I/O via 197Bug Commands Dskcfig Disk I/O via 197Bug System CallsDefault 197Bug Controller and Device Parameters Disk I/O Error CodesNetwork I/O Support RARP/ARP Protocol Modules Bootp Protocol ModulePhysical Layer Manager Ethernet Driver UDP/IP Protocol ModulesMultiprocessor Control Register Mpcr Method Network Boot Control ModuleNetwork I/O Error Codes Multiprocessor SupportMpar Gcsr Method Diagnostic FacilitiesDebugger General Information Debugger Entering Debugger Command LinesExpression as a Parameter Syntactic VariablesData Type Base Identifier Examples Address as a Parameter Address FormatsOffset Registers Port Numbers Entering and Debugging ProgramsHardware Functions Calling System Utilities From User ProgramsPreserving The Debugger Operating Environment 197Bug Vector Table and WorkspaceCPU/MPU Registers Floating Point SupportSingle Precision Real Double Precision RealScientific Notation Debugger Commands 197Bug Debugger Command SetNocm Noma Name Nioc RL Addrbhw Using the 197Bug Debugger Cnfg MI Configure Board Information BlockENV D Set Environment to Bug/Operating SystemENV Parameter and Options Default Meaning of Default Table A-1. ENV Command ParametersConfigure and Environment Commands Ffbffffc Table A-1. ENV Command Parameters Memory Requirement s 01FFFFFF Table A-1. ENV Command Parameters Efffffff FF7FFFFF Table A-1. ENV Command Parameters Table A-1. ENV Command Parameters Table A-1. ENV Command Parameters Disk/Tape Controller Modules Supported DISK/TAPE Controller DataMVME323 4 Devices Disk/Tape Controller Default ConfigurationsSingle Board Computers 7 Devices MVME320 4 DevicesMVME328 14 Devices MVME327A 9 DevicesMVME350 1 Device IOT Parameter IOT Command Parameters for Supported Floppy TypesDisk/Tape Controller Data Network Controller Modules Supported Network Controller DataNetwork Controller Data Numerics SymbolsIN-2 IN-3 Nvram A-2 XON/XOFF Index

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