VXI VM4016 user manual Inhousepseudo

Page 67

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INHOUSE:PSEUDO

 

 

 

 

 

 

Purpose

Controls the use of the register interface

 

 

 

 

 

 

Type

Setting

 

 

 

 

 

 

Command Syntax

INHOUSE:PSEUDO <boolean>

 

 

 

 

 

 

Command Parameters

<boolean> = 0 1 OFF ON

 

 

 

Factory Default = 1

 

 

 

 

 

 

*RST Value

N/A

 

 

 

 

 

 

Query Syntax

INHOUSE:PSEUDO?

 

 

 

 

 

 

Query Parameters

N/A

 

 

 

 

 

 

Query Response

ASCII numeric 0 or 1

 

 

 

 

 

 

Description

If INHOUSE:PSEUDO is set true (1 or ON), the instrument uses the pseudo register

 

 

 

interface. If false (0 or OFF), the instrument uses the hardware register interface. The

 

 

 

value set is implemented upon the next power cycle. This command does not take

 

 

 

effect immediately.

 

 

 

The pseudo register interface allows use of the REG_ENABLE capability as well as the

 

 

 

CLEAR_LATCH capability from the registers. These capabilities are not available

 

 

 

with the hardware register interface. The hardware register interface is much faster

 

 

 

than the pseudo register interface (speeds are controller dependent but, as an example,

 

 

 

with one controller a hardware register access takes about 0.5 µs while a pseudo

 

 

 

register access takes about 25 µs). The hardware register, however, interface lacks the

 

 

 

above two features.

 

 

 

Pseudo registers are needed if the user wants to perform a register read or a word serial

 

 

 

FETch:LATChed? of FIRST LATCHED data in order to allow another FIRST

 

 

 

LATCHED to occur. If pseudo is not set, then the user can read registers at hardware

 

 

 

register speed but a word serial read FETCh:LATChed? is required to allow another

 

 

 

FIRST LATCHED to occur. If pseudo is set, then the user can read the registers at

 

 

 

pseudo register speed but the read of the latched data will allow a new FIRST

 

 

 

LATCHED to occur. Pseudo also allows a register write to control the masking of

 

 

 

interrupts for REGINT.

 

 

 

Note: All letters of the command are required; there is no short form of the command.

 

 

 

 

 

Examples

Command / Query

Response (Description)

INHOUSE:PSEUDO 1

(Selects the PSEUDO register)

INHOUSE:PSEUDO?

1 (Indicates that the PSEUDO register is selected)

Related Commands

INHOUSE:REG_ENABLE INHOUSE:CLEAR_LATCH

VM4016 Command Dictionary

67

Image 67
Contents VM4016 Page Table of Contents VXI Technology, Inc Restricted Rights Legend WarrantyLimitation of Warranty CertificationEMC C L a R a T I O N O F C O N F O R M I T YTerms and Symbols General Safety InstructionsThis product. Product should be inspected or serviced Support Resources VXI Technology, Inc VM4016 Preface Introduction IntroductionFront Panel Layout DescriptionVM4016 Block Diagram IRQ Output VM4016 General SpecificationsCalculating System Power and Cooling Requirements InstallationPreparation for USE Setting the Logical Address Setting the Chassis Backplane JumpersFront Panel Interface Wiring Analog Comparator PIN Outs Signal PIN Number1631 Programming Examples of Scpi Commands FETCHCONDITIONED?FETCHLATCHED? FETCHRAW? Inhousepseudo Inhouseregint InhouseregintInhouseregenable Inhouseclearlatch Examples InputdebounceINPMASK? InputmaskInputmaskinterrupt INPutMASKINTerrupt boolean Where boolean is 0 OFF 1 onINPOFFS? InputoffsetINPutPOLarity NORM,@35 InputpolarityInputrange Outputpolarityexternalinterrupt Outputpolarityexternallatched Example Application ExamplesSingle Channel Operation Commands DescriptionControl Page Sets the external interrupt output to be active high Bracketing a VoltageBracketing AN Input Voltage Page Register MAP Register Access ExamplesFor example Pseudo Register Access VXIPLUG&PLAY Driver Examples VM4016 Programming VXI Technology, Inc Alphabetical Command Listing Command DictionaryIeee 488.2 Common Commands Normal Instrument Specific Scpi CommandsScpi Required Commands Query Parameters Command DictionaryCLS Common Scpi CommandsResponse Description ESEESR? IDN? Query Parameters Query Response Description OPCRST SRE STB? TRG TST? OPC WAIFETChCONDitioned? Instrument Specific Scpi CommandsFETChLATChed? FETChRAW? Inhouseclearlatch Inhousepseudo Inhouseregint Inhouseregenable INPutDEBounce INPutMASK INPutMASKINTerrupt INPutOFFSet INPutPOLarity INPutRANGe OUTPutPOLarityEXTernalINTerrupt OUTPutPOLarityEXTernalLATChed STATusOPERationCONDition? Required Scpi CommandsSTATusOPERationENABle STATusOPERationEVENt? STATusPRESet STATusQUEStionableCONDition? STATusQUEStionableENABle STATusQUEStionableEVENt SYSTemERRor? SYSTemVERSion? Theory of Operation Input Range Control Relay Signal Comparison Interrupt Generation Interrupt Generation OUTPutPOLarityEXTernalLATChed Index