Motorola MVME197LE user manual VMEbus Interface, Interfaces, Serial Port Interface

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MVME197LE Functional Description

format. Corrections for 28-, 29-, (leap year) and 30-day months are automatically made. No interrupts are generated by the clock. The MK48T08 is an 8-bit device; however the interface provided by the PCCchip2 supports 8-, 16-, and 32-bit accesses to the MK48T08. Refer to the PCCchip2 chapter in the MVME197LE, MVME197DP, and MVME197SP Single Board Computers Programmer’s Reference Guide and to the MK48T08 data sheet for detailed

programming information.

VMEbus Interface

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The local peripheral bus to VMEbus interface, the VMEbus to local peripheral bus interface, and the local-VMEbus DMA controller functions on the MVME197LE are provided by the VMEchip2. The VMEchip2 can also provide the VMEbus system controller functions. Refer to the VMEchip2 chapter in the MVME197LE, MVME197DP, and MVME197SP Single Board Computers Programmer’s Reference Guide for detailed programming information.

I/O Interfaces

The MVME197LE provides onboard I/O for many system applications. The I/O functions include serial ports, a printer port, an Ethernet transceiver interface, and a SCSI mass storage interface.

Serial Port Interface

The CD2401 serial controller chip (SCC) is used to implement the four serial ports. The serial ports support the standard baud rates (110 to 38.4K baud). Serial port 4 also supports synchronous modes of operation.

The four serial ports are different functionally because of the limited number of pins on the I/O connector.

Serial port 1 is a minimum function asynchronous port. It uses RXD, CTS, TXD, and RTS.

Serial ports 2 and 3 are full function asynchronous ports. They use RXD, CTS, DCD, TXD, RTS, and DTR.

Serial port 4 is a full function asynchronous or synchronous port. It can operate at synchronous bit rates up to 64k bits per second. It uses RXD, CTS, DCD, RTS, and DTR. It also interfaces to the synchronous clock signal lines.

Refer to the MVME197LE, MVME197DP, and MVME197SP Single Board Computers Programmer’s Reference Guide for drawings of the serial port interface connections.

MVME197LE/D2

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Contents MVME197LE/D2 MVME197LERestricted Rights Legend Document Terminology PrefaceBIT Document Title Motorola Publication Number Related DocumentationPage Page Safety Summary Safety Depends on YOU Contents Appendix a List of Figures Xii List of Tables Xiv General Description IntroductionOte FeaturesSpecifications MVME197LE SpecificationsCharacteristics Specifications Cooling Requirements FCC Compliance Equipment RequiredSupport Information 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 Installation Instructions Switch S6Connectors MVME197LE Module Installation System Considerations MVME197LE/D2 Hardware Preparation and Installation Controls and Indicators Abort Switch S2Reset Switch S3 Front Panel Indicators DS1-DS6 Memory MapsProcessor Bus Memory Map Processor Bus Memory Map Local Devices Memory Map Address Range Devices Accessed Port SizeDetailed I/O Memory Maps 110 BusSwitch Register Memory Map100 108Memory Maps ECDM0 ECDM1 ECDM2 ECDM3 ADDR/REGISTER Ecdm CSR Register Memory MapDcam I2C Register Memory Map Dcam I2C Base Address = $C0 default OffsetOperating Instructions Offset VMEchip2 Memory Map Sheet 1Operating Instructions VMEchip2 Memory Map Sheet 2 Global Access BUS Watchdog Timeout Prescaler AdjustOperating Instructions VMEchip2 Memory Map Sheet 3 Operating Instructions VMEchip2 Gcsr Base Address = $FFF40100 VMEchip2 Memory Map Sheet 4Operating Instructions PCCchip2 Memory Map Printer Busy Interrupt Control Register $FFF42034 Printer Fault Interrupt Control Register $FFF42031Printer SEL Interrupt Control Register $FFF42032 Printer PE Interrupt Control Register $FFF42033Cirrus Logic CD2400 Memory Map Offsets Size Access Cirrus Logic CD2401 Serial Port Memory MapBase Address Is $FFF45000 Data Bits Address D31 D16 D15 Address Range Description Size Bytes Accesses may be 8-bit or 32-bit, but not 16-bit11 C710 Scsi Memory Map 12. MK48T08 BBRAM, TOD Clock Memory Map13. Bbram Configuration Area Memory Map 14. TOD Clock Memory MapData Bits Address Function BBRAM, TOD Clock Memory Map 0460000000470476 5000 VMEbus Accesses to the Local Peripheral BusVMEbus Memory Map 01-W3869B03ALocal Reset Operation Software InitializationMulti-MPU Programming Considerations User’s Manual MVME197LE Functional Description Data Bus StructureMC88110 MPU Functional Description Memory Array Bus Data Bus 256 BusSwitchMC88110 Address Data MUX Address Mezzanine Address BusBattery Backup RAM and Clock Flash MemoryOnboard Dram VMEbus Interface InterfacesSerial Port Interface Ethernet Interface Printer InterfaceScsi Termination Programmable Tick TimersPeripheral Resources Scsi InterfaceInterrupt Sources Watchdog TimerProcessor Bus Timeout Local Peripheral Bus TimeoutMVME197LE/D2 Functional Description EIA-232-D Interconnections Table A-1. EIA-232-D Interconnections Pin Signal Signal Name and Description Number MnemonicRing Indicator RI is sent by the modem to User’s Manual Figure A-1. Middle-of-the-Road EIA-232-D Configuration Figure A-2. Minimum EIA-232-D Connection Numerics IndexIN-2 IN-3 Index

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