Black Box IC026AE-R2, IC026A-R2 manual Untalk UNT

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CHAPTER 5: Peripheral Operation

5.6.1MY TALK ADDRESS (MTA)

When the interface converter is addressed to talk, it retrieves data from the serial input buffer and outputs it to the IEEE 488 bus. It substitutes the selected IEEE bus terminators for the received serial terminators. The inter- face converter will continue to output serial input buffer data as long as the IEEE controller allows.

5.6.2MY LISTEN ADDRESS (MLA)

When the interface converter is addressed to listen, it accepts data from the active talker and outputs this data through the serial interface. It substitutes the selected serial terminators for the received IEEE bus terminators.

5.6.3DEVICE CLEAR (DCL AND SDC)

Device Clear resets the interface converter’s IEEE input and serial input buffers. Any pending data and Service Requests (SRQ), including the information they convey, are lost.

5.6.4INTERFACE CLEAR (IFC)

IFC places the interface converter in the Talker/Listener Idle State. It clears any pending requests for service (SRQ). The condition which caused the SRQ remains unmodified.

5.6.5SERIAL POLL ENABLE (SPE)

When Serial-Poll-Enabled, the interface converter sets itself to respond to a serial poll with its serial-poll status byte if addressed to talk. When the serial- poll byte is accepted by the controller, any pending SRQs are cleared. The interface converter will continue to try to output its serial-poll response until it is “Serial-Poll-Disabled” by the controller.

5.6.6SERIAL POLL DISABLE (SPD)

Disables the interface converter from responding to serial polls by the controller.

5.6.7UNLISTEN (UNL)

UNL places the interface converter in the Listener Idle State.

5.6.8 UNTALK (UNT)

UNT places the interface converter in the Talker Idle State.

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Contents RS-232↔IEEE Interface Converter RS-232↔IEEE 488 Interface Converter Trademarks Used in this Manual RS-232↔IEEE 488 Interface Converter NOM Statement RS-232↔IEEE 488 Interface Converter Contents RS-232↔IEEE 488 Interface Converter Contents Specifications IEEE-488 InterfaceSerial Interface General SpecificationsDescription IntroductionAbbreviations Serial Port ConfigurationGetting Started InspectionSW3 Serial Port Settings Switch SW1 Selecting the Serial Baud Rate Switch SW1 Selecting the Serial Word Length Data Bits Switch SW2 Selecting the Serial Parity Switch SW1 Selecting the Serial Handshake Selecting Terminator Substitution Switch SW2 Selecting the Serial TerminatorSwitch SW3 Selecting the Ieee Bus Terminator Selecting the ModeSelecting the Ieee Address 10. Switch SW2 Selecting the ModeFeature Selections Serial Interface 15. Selecting RS-232 or RS-422 Signal Levels Request To Send-Output-Pin RxD Receive Data-Input-PinTxD Transmit Data-Output-Pin Clear To Send-Input-Pin+TxD Transmit Data Plus-Output-Pin Vtest Test Voltage-Output-PinGnd Ground-Pin +RxD Receive Data Plus-Input-PinRTS CTS DSR RTS CTS GeneralGetting Started Controller-Mode Serial to Ieee Operation Controller OperationSerial and Ieee Terminator Substitution Ieee Address Selection Talk-Back FeaturesSwitch SW1 Enabling or Disabling Talk-Back on Terminator Switch SW2 Enabling or Disabling Talk-Back on Timeout SP1PA1000,1000PDPA1000,6000PUSP0 7470APlotter Applications A PC-Based Graphics System SW3 MacPlot Configuration Screen Setting the Internal DIP Shorting Jumper for RS-422 SW3 Printer Applications Peripheral Operation Peripheral-Mode OperationSerial and Ieee Input Buffers Ieee Data Transfers Controlled BUS Data Transfers DIO8 Ieee Input Buffer not Empty Serial-Poll Status-Byte RegisterIeee Input Buffer Full RsvNot Defined-Always Serial Input Buffer not EmptyIeee 488 Bus Implementation Use of Serial and Bus TerminatorsUntalk UNT SW3 View for Ieee Address Selection Ieee 488 Primer HistoryGeneral Structure RS-232↔IEEE 488 Interface Converter DMM Send It to My AddressBus Management Lines Data Valid DAV Handshake LinesData Lines Multiline CommandsTalk Address Group TAG More on Service Requests Serial Poll Address Device Part Number Function Theory of OperationComponent Layout of the Interface Converter’s Motherboard Board LayoutRED BLK CLS Appendix A. Sample Dumb-Terminal ProgramSOH Multiline MessagesAscii Character How To Read the ChartDIO1 DIO2 DIO3 IndexIndex SW1 Copyright 1998. Black Box Corporation. All rights reserved