HP E1368A manual Addressing the Registers, Reading the Registers, ID and Device Type Registers

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Addressing the Registers

To read or write to specific registers, you must use the register address. Register addresses for HP 75000 Series C plug-in modules are in address space VXI A16. The locatio of A16 within the mainframe/command module memory map depends on the mainframe/command module used. For example, the A16 location of the HP E1300/E1301 Mainframe starts at 1F000016 (16 = HEX).

The A16 space is divided so modules are addressed only at locations beginning with C00016 within A16. Allocated for each module are 64 register addresses (4016). The module base address is related to the logical address set by the module’s logical address switch (LADDR). The module address is:

module address 16 = (logical address 16) * 4016 + C00016

For the Microwave Switch modules, the default logical address is 120 (7816), thus the module address within A16=

7816 * 4016 + C00016 = DE0016

For example, to address the Status/Control Register of a Microwave Switch module in an HP E1300/E1301 Mainframe, the command register address is:

[A16 location]16 + [module address]16 + [register offset]16 = 1f00016 + DE0016 + 0416 = 1FDE0416

Reading the Registers

ID and Device Type Registers

You can read the following Microwave Switch registers:

∙Manufacturer ID Register (base + 0016)

∙Device Type Register (base + 0216)

∙Status/Control Register (base + 0816)

∙Channel Enable Register (base + 0816)

ID Register: Reading the register returns: FFFF16. This shows Hewlett-Packard as the manufacturer and that the module is an A16 register-based device.

Device Type Register: Reading this register returns FF2816 if the device is either the E1368A Microwave Switch module, or the E1369A Microwave Switch Driver module.

76 HP E1368A/69A/70A Registers

Appendix B

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Contents Contents Open OPEN? Scan Scanmode SCANMODE? Cpon HP E1368A/69A/70A Modules User’s Manual Contents Certification Documentation History April According to ISO/IEC Guide 22 and ENPage Business Reply Mail Page Using This Chapter Microwave Switch DescriptionGetting Started with the HP E1368A/69A/70A Chapter Power Supply Circuit HP E1368A SwitchesProgramming the Microwave Switch Instrument DefinitionCard Numbers for Multiple-Module Switchboxes Example Reset the switchbox and close channel Initial OperationConfiguring the HP E1368A/69A/70A Modules Setting the Address Switch Logical Address SelectionSelecting the Interrupt Priority Interrupt Priority SelectionInstalling Switches on the HP E1369A Installing Switches on the ModuleChapter Configuring the HP E1368A/69A/70A Modules Microwave Switch Installation Connecting Switches External To the Module Selecting Switch Power Connecting Field Wiring Selecting Switch VoltageInstalling a Switch Or Attenuator on Module Microwave Switch/Attenuator Installation Shows the internal schematic of a single attenuator section Using the HP E1368A/69A/70A Modules Microwave Switch CommandsReset Conditions Switching Channels Example Single Channel SwitchingPower To connect C to Port 1, execute 33363K 33364K 33365K 33366K Example Multiple Channel Switching Using EXTernal Example Transfer Switch Using Two Port Switches Example Transfer Switch Using One Port Switch To route signal B to the output, execute Example 4 x 1 MultiplexerScanning Channels Selects the Trigger SourceExample Scanning Channels Output 722TRIG EXT …Example Using the Scan Complete Bit Example Multiple Channel Scanning110END Detecting Error Conditions Recalling and Saving StatesRepeat Synchronizing the Microwave Switch Synchronizing InstrumentsQuerying the Microwave Switch Common Command Format Command TypesScpi Command Format HP E1368A/69A/70A Command Reference Chapter Semicolon between the commands. For example ABORt Scpi Command ReferenceExample Stopping a Scan with ABORt For the number of scanning cycles default is ∙ Number of Scans Use only numeric values between 1Armcoun Example Select Module #2 in a Switchbox for Monitoring DISPlayMONitorCARD ∙ Selecting a Specific Module to be Monitored UseExample Querying the Monitor Mode Example Enabling the Monitor Mode∙ Selecting the Module to be Monitored Use INITiate ∙ Stopping Continuous Scans See the ABORt commandExample Enabling Continuous Scans Example Query Continuous Scanning State OUTPut Example Query Trig Out Port Enable StateExample Enabling Trig Out Port ROUTe Example Closing Microwave Switch Channels∙ Closing Channels To close Example Opening Microwave Switch Channels ∙ Opening Channels To openExample Scanning Using External Device Or any combinationChapter HP E1368A/69A/70A Command Reference STATus ∙ Setting Bit 7 of the Status Byte Register Example Query the Standard Operation Status Enable RegisterSTATOPER? SYSTem CDEScription?Example Reading the Error Queue Comments Microwave Switch Module Model NumberExample Reading the Model Number of a Card #1 Module ∙ Executing the TRIGgerIMMediate Command a channel list Example Advancing Scan Using the TRIGger CommandTRIGger ∙ Hold or BUS Source Remains If selected, the TRIGgerSOURce∙ Trig Out Port Shared by Switchboxes See the OUTPut command Example Scanning Using External TriggersScanning Using Bus Triggers Example Query the Trigger SourceIeee 488.2 Common Commands HP Command Module User’s Manual, or the ANSI/IEEE StandardCommand Quick Reference Scpi Commands for Quick ReferenceHP E1368A/69A/70A Command Reference Chapter Characteristic Impedence 50Ω Insertion Loss Maximum Input Power 1 Watt averageConnectors Used P1 No. Slots Operating TemperatureHP E1368A/69A/70A Specifications Appendix a HP E1368A/69A/70A Registers Register DefinitionsReading the Registers Addressing the RegistersID and Device Type Registers Status/Control Register Channel Enable Register Writing to the RegistersHP E1368A/69A/70A Registers Appendix B HP E1368A/69A/70A Error Messages Page Index HP E1368A/69A/70A Modules User’s Manual IndexHP E1368A/69A/70A Modules User’s Manual Index HP-IB HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index HP E1368A/69A/70A Modules User’s Manual Index