Manuals / Motorola / Computer Equipment / Personal Computer

Motorola MVME197LE user manual Pin Signal Signal Name and Description Number Mnemonic

Models: MVME197LE

1 78

Download 78 pages 27.46 Kb

Page 70

A

EIA-232-D Interconnections

Table A-1. EIA-232-D Interconnections

	Pin	Signal	Signal Name and Description
	Number	Mnemonic	Signal Name and Description
	Number	Mnemonic


	1	---	Not used.

	2	TXD	TRANSMIT DATA - data to be transmitted is furnished on
			this line to the modem from the terminal.

	3	RCD	RECEIVE DATA - data which is demodulated from the
			receive line is presented to the terminal by the modem.

	4	RTS	REQUEST TO SEND - RTS is supplied by the terminal to the
			modem when required to transmit a message. With RTS off,
			the modem carrier remains off. When RTS is turned on, the
			modem immediately turns on the carrier.

	5	CTS	CLEAR TO SEND - CTS is a function supplied to the
			terminal by the modem which indicates that it is permissible
			to begin transmission of a message. When using a modem,
			CTS follows the off-to-on transition of RTS after a time
			delay.

	6	DSR	DATA SET READY - data set ready is a function supplied
			by the modem to the terminal to indicate that the modem is
			ready to transmit data.

	7	SIG-GND	SIGNAL GROUND - common return line for all signals at
			the modem interface.

	8	DCD	DATA CARRIER DETECT - sent by the modem to the
			terminal to indicate that a valid carrier is being received.

	9-14	---	Not used.

	15	TXC	TRANSMIT CLOCK - this line clocks output data to the
			modem from the terminal.

	16	---	Not used.

	17	RXC	RECEIVE CLOCK - this line clocks input data from a
			terminal to a modem.

	18,19	---	Not used.

	20	DTR	DATA TERMINAL READY - a signal from the terminal to
			the modem indicating that the terminal is ready to send or
			receive data.

	21	---	Not used.

A-2	User’s Manual

Image 70

Motorola MVME197LE user manual Pin Signal Signal Name and Description Number Mnemonic

Contents

MVME197LE MVME197LE/D2Restricted Rights Legend Preface Document TerminologyBIT Related Documentation Document Title Motorola Publication NumberPage Page Safety Summary Safety Depends on YOU Contents Appendix a List of Figures Xii List of Tables Xiv Introduction General DescriptionFeatures OteMVME197LE Specifications SpecificationsCharacteristics Specifications Cooling Requirements Equipment Required FCC ComplianceSupport Information Unpacking Instructions Hardware PreparationHardware Preparation and Installation VMEbus Connector P1 Switch S1 Configuration SwitchesConfiguration Switch S1 General Information S1-1 to S1-8 OFF -- All Ones Factory Configuration Switch S6 Installation InstructionsConnectors MVME197LE Module Installation System Considerations MVME197LE/D2 Hardware Preparation and Installation Abort Switch S2 Controls and IndicatorsReset Switch S3 Memory Maps Front Panel Indicators DS1-DS6Processor Bus Memory Map Processor Bus Memory Map Address Range Devices Accessed Port Size Local Devices Memory MapDetailed I/O Memory Maps 108 BusSwitch Register Memory Map100 110Memory Maps Ecdm CSR Register Memory Map ECDM0 ECDM1 ECDM2 ECDM3 ADDR/REGISTERDcam I2C Base Address = $C0 default Offset Dcam I2C Register Memory MapOperating Instructions VMEchip2 Memory Map Sheet 1 OffsetOperating Instructions Global Access BUS Watchdog Timeout Prescaler Adjust VMEchip2 Memory Map Sheet 2Operating Instructions VMEchip2 Memory Map Sheet 3 Operating Instructions VMEchip2 Memory Map Sheet 4 VMEchip2 Gcsr Base Address = $FFF40100Operating Instructions PCCchip2 Memory Map Printer PE Interrupt Control Register $FFF42033 Printer Fault Interrupt Control Register $FFF42031Printer SEL Interrupt Control Register $FFF42032 Printer Busy Interrupt Control Register $FFF42034Cirrus Logic CD2401 Serial Port Memory Map Cirrus Logic CD2400 Memory Map Offsets Size AccessBase Address Is $FFF45000 Data Bits Address D31 D16 D15 12. MK48T08 BBRAM, TOD Clock Memory Map Accesses may be 8-bit or 32-bit, but not 16-bit11 C710 Scsi Memory Map Address Range Description Size Bytes14. TOD Clock Memory Map 13. Bbram Configuration Area Memory MapData Bits Address Function 0460 BBRAM, TOD Clock Memory Map000000470476 01-W3869B03A VMEbus Accesses to the Local Peripheral BusVMEbus Memory Map 5000Software Initialization Local Reset OperationMulti-MPU Programming Considerations User’s Manual Data Bus Structure MVME197LE Functional DescriptionMC88110 MPU Functional Description Mezzanine Address Bus Bus Data Bus 256 BusSwitchMC88110 Address Data MUX Address Memory ArrayFlash Memory Battery Backup RAM and ClockOnboard Dram Interfaces VMEbus InterfaceSerial Port Interface Printer Interface Ethernet InterfaceScsi Interface Programmable Tick TimersPeripheral Resources Scsi TerminationLocal Peripheral Bus Timeout Watchdog TimerProcessor Bus Timeout Interrupt SourcesMVME197LE/D2 Functional Description EIA-232-D Interconnections Pin Signal Signal Name and Description Number Mnemonic Table A-1. EIA-232-D InterconnectionsRing 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 Index NumericsIN-2 IN-3 Index