Xycom XVME 590, XVME 500 User Manual

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XVME-500/590 Manual February, 1988

Chapter 1

MODULE DESCRIPTION

1.1 INTRODUCTION

The XVME-500 and XVME-590 are Analog Input VMEbus-compatible boards. The XVME-500 is a single-high (3U), single-wide module, and the XVME-590 is a doublehigh (6U), single-wide module. These two modules are capable of performing analog-to-digital conversions with

12-bit

resolution. These modules provide 16

single-ended (SE), or 8 differential input (DI) analog input channels. Adding an XVME-910 channel expansion kit allows analog input expansion to 32 SE

and 16 DI channels. See Appendix A for XVME-910 specifications. The XVME-500 and XVME-590 modules are available in any of three different

versions:

XVME-500/

1 and

XVME-590/

1 - fixed gain amplifier with 25uSec

conversion time*

XVME-500/2 and XVME-590/2 - programmable gain amp with 25uSec conversion*

XVME-500/3 and XVME-590/3 - programmable gain amp with

10uSec

conversion*

See Table l-l, Section 1.3 for additional information on conversion time, settling time and throughput frequency for each version.

1.2 MANUAL STRUCTURE

The first chapter is an overview introducing the user to the XVME-500 and XVME-

590 general specifications and functional capabilities. Successive chapters develop

the various aspects of module specification and operation in the following manner:

Chapter One- A general discussion of the three Analog Input Module versions, including complete functional and environmental specifications, VMEbus compliance information, and detailed block diagrams.

Chapter Two- Module installation information covering specific system requirements, jumpers and connector pinouts.

Chapter Three- Information required to program the module for analog input operations.

Chapter Four- Procedures for analog input module calibration.

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XVME-500/590 Manual February, 1988

Appendices -

The Appendices are designed to provide additional information in terms of the XVME-9 10 channel expansion kit; backplane signal/pin descriptions; block diagram, assembly illustration and schematics; and a quick reference section.

1.3 MODULE OPERATIONAL DESCRIPTION

Figure

l-1

shows the operational block diagram of the XVME-500 and Figure 1-2

shows the operational block diagram of the XVME-590 Analog Input Module.

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XVME-500/590 Manual

February, 1988

1.3.1

Application Circuitry

As the previous block diagrams show, the analog-to-digital circuitry in the XVME500 or XVME-590 consists of the following parts:

VMEbus interface circuitry

Fixed gain amplifier (version 1 only)

Programmable gain amplifier (versions 2 & 3 only) 32-element RAM buffer to hold and separate gain value for up to 32

analog inputs (versions 2 & 3 only)

12-bit

resolution analog-to-digital converter with input ranges of

+5V,

+lOV

or O-10 volts

Two eight-channel multiplexers allowing up to 16 SE or 8 DI signals to be connected to the ADC (expansion kit allows double

signal input); directed by software to select one channel for data conversion

Resistor programmable gain with addition of a resistor and a potentiometer

1.3.2

General Operation

As stated before, there are three different versions that the XVME-500 and XVME590 are available in and they are:

XVME-500/

XVME-590/l XVME-500/2 XVME-590/2 XVME-590/3 XVME-590/3

On all versions, the analog input channels can be configured for bipolar or unipolar operations. The unipolar range is O-10 volts. The bipolar ranges include

25V

and

lfil ov.

Gain capabilities, conversion speeds and throughput frequencies vary with each version, as displayed in Table 1-l.

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XVME-500/590 Manual February, 1988

Table l-l

Versions Version Conversion Time Settling Time Throughput Frequency XVME-500/

1 25uSec

25uSec 20KHz

XVME-590/

1 25uSec

25uSec 20KHz

XVME-500/2

25uSec

uSec

28.5KHz

XVME-590/2

25uSec

10uSec

28.5KHz

XVME-500/3 10uSec

10uSec

50KHz

XVME-590/3 10uSec

10uSec

50KHz

1 .

Two types of differential amplifiers are available: fixed gain (version 1 of both modules) and programmable gain (version 2 & 3 of both modules).

The fixed-gain amp offers jumper-selectable gains of xl, x10, xl00 and x1000. In addition, the fixed-gain amp may offer resistor-programmable gain (to any number

between 1 and 1000) if a resistor (Rl0) and potentiometer (R13) are added (see Section 2.6.4.3).

The programmable amplifier provides three ranges of jumper-selectable programmable

gains (see Section

2.6.4.-l).

Range 1: xl, x2, x5 and x10. Range 2: x4, x8, x20

and x40. Range 3:

x10,

x20, x50 and x100. A 32-element RAM buffer is provided with the programmable amps to hold separate gain values for the 32 analog inputs. Within each range, the four options are software-programmable.

XYCOM’s

XVME-500 and

XVME-590

are designed to be addressed within the VMEbus defined 64K Short I/O Address Space. The module address is jumper-selectable to any of the sixty-four 1K boundaries within the Short I/O Address Space. There are three 8-bit registers which are used for channel status, control-setting interrupt vector, programmable gains (versions 2 & 3 on both modules) and channel selection. In addition, there is a

16-bit

data register for reading converted digital data.

1.4 SPECIFICATIONS

The following table lists the electrical, environmental, and VMEbus compliance

specifications for the XVME-500 and XVME-590 Analog Input Modules:

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XVME-500/590 Manual February, 1988

Table 1-2

XVME-500 and XVME-590 Analog Input Module Specifications

. Characteristic

Specification

Number of Channels

Single-ended

16 (32 optional)

Differential

8 (16 optional)

Supply Voltage

VDC,

~5%

Supply Current

Maximum

Typical

1.90 A

1.60 A

Accuracy

Resolution Linearity Differential Linearity Monotonicity

12 bits

+0.5

LSB

50.5 LSB Guaranteed*

System Accuracy

Gain = 1

Gain = 10 Gain = 100

+0.0l%

FSR, max.

+0.l%

FSR, max.

1% FSR, max.

System Accuracy Temperature Drift

Gain = 1

40 ppm/Degree C, max.

Gain = 10

75 ppm/Degree C, max.

Gain = 100

110 ppm/Degree C, max.

Common Mode Rejection Ratio

60db min.

Analog-to-Digital Input (Gain = 1)

Full Scale Voltage Ranges

Unipolar Bipolar

0-10V

+5v,

+lOV

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XVME-500/590 Manual February, 1988

Table 1-2 (cont’d)

Characteristic Specification

Programmable Gain (versions 2 & 3)

Range

1 Range 2 Range 3

Fixed Gain (version 3)

Resistor programmable

Maximum Input Voltage

Power on Power off

Input Impedance

1OM

ohm resistor

w/o

1OM

ohm resistor Bias Current Input Capacitance Operating Common Mode Voltage Speed

Conversion Time

versions 1 & 2 version 3

Throughput Frequency

version 1 version 2 version 3

Settling Time

version 1

versions 2 & 3

1, 2, 5,

or 10

4, 8, 20 or

10, 20, 50,or100

xl, x10, x100, xl000

+35v +2ov

1OM

ohm min.

1OOM

ohm min.

+ 1

OOnA

max.

OOpf

max.

14v

12-bit

25uSec

10uSec

8-bit

17uSec

6.8uSec

20KHz

23.8KHz

28.5KHz 37KHz 50KHz 59.5KHz

25uSec

10uSec

25uSec

10uSec

External Trigger-to-Sample 10 or 20uSec

10, 25uSec

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XVME-500/590 Manual February, 1988

Table l-2 (cont’d)

Characteristic Specification

Environmental Specifications

Temperature

Operating Non-operating

O”

65O

-4OO

85O

Humidity

Operating 5 to 95% RH non-

condensing

Shock

Operating 30g peak acceleration

mSec

duration

Non-operating

50g peak acceleration

mSec

duration

Vibration

Operating 5 to

2000Hz

.015

in. peak-to-peak

2.5g

max

Non-operating 5 to

2OOOHz

.030

in. peak-to-peak

5.Og

max

VMEbus Compliance

0 Complies with VMEbus specification Revision C.l

A16:D16/D08(EO) DTB Slave

l Interrupter - I(1) - 1(7)(STAT), ROAK

Interrupter Vector -

D08(0)

(DYN)

Form Factor - SINGLE (XVME-500)

Form Factor - DOUBLE (XVME-590)

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XVME-500/590 Manual February, 1988

XVME-540 Compatibility

All address locations for analog input are identical

0 All bit definitions for registers are the same EXCEPT there are no

LEDs Channel

regi ster/counter now

reset; the

540 powers-up random

receives reset software power-up

l No fast convert in single channel mode

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XVME-500/590 Manual February, 1988

Chapter 2

INSTALLATION

2.1 GENERAL

This chapter provides the information needed to configure and install the Analog

Input Module.

2.2 SYSTEM REQUIREMENTS

The

XVME-500 Analog Input Module is single-height (3U), and the XVME-590 is a

double-height (6U) VMEbus-compatible module. To operate, it must be properly

installed in a VMEbus backplane cardcage. The minimum system requirements for operation of the module are one of the following:

A host processor installed in the same backplane

A properly installed controller subsystem. An example of such a subsystem is the XYCOM XVME-010 System Resource Module.

A host processor which incorporates an on-board controller subsystem (such as the XVME-600 68000 Processing Module).

2.3

LOCATION OF COMPONENTS RELEVANT TO INSTALLATION

The jumpers, calibration potentiometers and connectors on the XVME-500 are

illustrated in Figure 2-1. Figure

2-1A

shows the XVME-500 jumpers which have multiple options. Figure 2-2 shows the jumpers, calibration potentiometers and connectors on the XVME-590.

Figure

2-2A

shows the XVME-590 jumpers which

have multiple options.

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XVME-500/590 Manual February, 1988

2.4 JUMPERS

Prior to installing the XVME-500 or XVME-590 module, several jumper options must be configured. The configurations of the jumpers are dependent upon the tab option and module capabilities required for the application. The jumper options can be divided into two categories:

0 VMEbus Options, and

Analog-to-Digital (A/D) Conversion Options

Table

2-I

lists the various jumpers and their uses.

Table 2-1. XVME-500/590 Jumpers

VMEbus OPTIONS Jumpers

Jl0,Jll,J12

J26,J27,J28,J29

J30,J31 J13

Use Interrupt level select for any interrupts generated by

the module (See Section 2.5.3) Module base address select jumpers

Section 2.5.1)

(refer to

This jumper allows module to respond to supervisory

access only (when installed) or to both supervisory and non-privileged access when removed. (see Section

2.5.2) Analog-to-Digital Conversion OPTIONS Jumpers Use

J2A

J2B

These jumpers provide the option of converting

analog inputs to either a two’s complement, straight binary or offset binary format (see Section 2.6.1)

Selects

12-bit

conversions for analog-to-digital

converter (see Section 2.6.4.4) Selects 8-bit conversions for analog-to-digital

converter (see Section 2.6.4.4) These jumpers are used to configure inputs for either

bipolar or unipolar input voltages and ranges (see Section 2.6.3)

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XVME-500/590 Manual February, 1988

Table 2-l. XVME-500/590 Jumpers (cont’d)

J6,J8,J9 Selects fixed-gain amplification factor on version 1

ONLY (see Section 2.6.4.2)

Used only for modifying version 1 for resistor programmable gain (see Section 2.6.4.3)

J14,J15,J16,Jl8, J19,J20

This jumper configuration controls gain ranges for programmable gain amplifier (versions 2 & 3) (see Section 2.6.4.1)

J17

This jumper is installed to provide ground reference for external trigger; J2 1 must be removed if this option is used (see Section 2.6.4.5)

J21A,J21B,J21C,J21D,

J25

These jumpers are used together to determine if the inputs will be configured as either 8 differential,

16 single-ended or 16 pseudo-differential input

channels (see Section 2.6.2)

J22A,J22B,J22C, J22D

J23,J24

Each jumper is used to determine settling times for

the appropriate module amplifier (see Section 3.4.1) These two jumpers are provided to allow grounding

of an input channel in either the single-ended or the differential input mode of operation for purposes of calibration (see Section 2.6.5)

J32

(XVME-590 Only) Connects Analog to Digital GND.

J32

is jumpered in

foil and can be cut if the user desires.

2.5 VMEbus OPTIONS

The XVME-500/590 is designed to be addressed within the VMEbus Short I/O Memory Space. Since each module connected to the bus must have its own unique base address, the base-addressing scheme for XVME input modules has been designed to be jumper-selectable. When the XVME-500/590 is installed into the system, it will occupy a

lK-byte

block of Short I/O Memory Space.

The XYCOM base address decoding scheme for input modules is such that the starting address for a module will always reside on a 1K boundary.

Thus, the module base address may be set for any one of 64 possible 1K boundaries within the Short I/O Address Space.

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XVME-500/590 Manual February, 1988

2.5.1

Base Address Selection Jumpers (526

531)

The module base address is selected by using jumpers

J26-J31

(see Figure 2-1 or Figure 2-2 for the locations on the board). Figure 2-3 shows a close-up of the base-address jumpers and how each jumper relates to the address lines.

A15 Al4 Al3 Al2 All

co .)

A10

Figure 2-3. Base Address Jumpers

When a jumper is INSTALLED, the corresponding base address bit will be logic ‘0’. However, when a jumper is REMOVED, the corresponding base address bit will be logic ‘1’.

Table 2-2 shows a list of the 64 1K boundaries which can be used as module base

addresses in the Short I/O Address Space (as well as the corresponding jumper

settings for each address).

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XVME-500/590 Manual February, 1988

’ 2.5.2 Supervisor/Non-Privileged Mode Selection (J13)

The XVME-500/590 can be configured to respond only to Supervisory accesses, OR to both Supervisory and Non-Privileged accesses.

The key is the installation or

removal of jumper

J13.

Table 2-3 shows access options controlled by J13.

Table 2-3. Access Options

Jumper

J13

Access Mode Selection Address Modifier Code Installed Supervisory Only 2DH Removed Supervisory or Non-Privileged 2DH or 29H

2.5.3

VMEbus Interrupt Options (Jl0, Jll, 512)

Three interrupt jumpers

(JI0,

Jll, 512) select which VMEbus interrupt level is to be used by the module. The input module can be programmed to generate an interrupt at the completion of a conversion. These jumpers determine the level of that interrupt. Interrupt-level jumper options are defined in Table 2-4.

In order to enable interrupts, a bit in the Status/Control register must be set (See programming chapter Section 3.3.1).

Interrupt reset occurs during the

interrupt-

acknowledge (IACK*) cycle.

A read from the lower byte of the analog-to-digital

conversion register,

or a command to start another conversion, will reset the

interrupt bit. Interrupts are also reset during a power-up sequence or when a

software reset is issued (See Table 2-4).

Table 2-4. Interrupt Level Jumpers

Jumpers

Jl0 Jll

J12

VMEbus Interrupt Level

0 0

Interrupts Disabled

0 0

1 1

NOTE: IN = LOGIC 0; OUT = LOGIC 1

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XVME-500/590 Manual February, 1988

2.6 ANALOG-TO-DIGITAL (A/D) CONVERSION OPTIONS

2.6.1

Input Conversion Format Jumpers (Jl,

J4)

This jumper option is used to configure A/D conversion circuitry to convert analog information to one of three formats:

straight binary (unipolar); off set binary

(bipolar); or two’s complement binary (bipolar). Use of this option is dependent upon the data format required by the input control

program employed by the user. This option is inclusive to all input channels and cannot be utilized on an individual channel basis (see Section 3.3.4.1).

The digital-data format at the A/D converters may be changed (via jumpers) to accommodate several types of data encoding. Table 2-5 shows which jumpers control the data formats for the two different voltage modes.

Table 2-5. Input Conversion Format Jumpers

Digital Data Conversion Jumpers Input Format ( All Inputs) Installed

Mode

Analog to Straight Binary

JlA, J4A

Analog to Offset Binary

JlA, J4A

Analog to Two’s Complement

JlB, J4B

Unipolar Bipolar Bipolar

2.6.2 Differential, Pseudo-Differential/Single-Ended Input Option Jumpers

(Analog Multiplexers)

(J21,

J25)

The XVME-500/590 can be configured to provide any one of three types of channel modes in set numbers (see Table 2-6 for input selection jumper options) They are:

16 single-ended (SE) input channels, or

8 differential (DI) input channels, or

16 pseudo-differential (PDI) input channels (allows module to simulate

advantages of true differential with some degradation)

The three modes are mutually exclusive so the module will only accept all SE, or all DI, or all PDI inputs. It will not accept combinations of the three.

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XVME-500/590 Manual February, 1988

NOTE

Only one of the three jumper configurations may be installed at any one time. Make sure that:

1) If the board is to be used in the SE input mode, the jumpers for DI and PDI operation must be removed; 2) If the board is to be used in the DI input mode, the jumpers for SE and PDI operation must be removed; and 3) If the board is to be used in the PDI input mode, the jumpers for SE and DI operation must be removed.

The pseudo-differential option allows 16 input channels, as does the single-ended option. Unlike the SE channel, the PDI mode uses a common analog ground (pin JKl-49) to simulate true differential input (Important, see Section 2.6.4.5).

Addition of the XVME-910 (see Appendix A) increases the number of analog multiplexers from two to four. As a result, the number of available input channels doubles as follows: SE and PDI increase to 32; DI increases to 16.

Table 2-6. Single-Ended/Differential, Pseudo-Differential Jumper Options

Jumpers Set J21A,J21C,J25

Input Mode

Set in this manner, the module inputs are configured for single-ended operation.

J21B In this manner,the module inputs are

configured for differential operation.

J21A,J21D,J25 This combination of jumpers configures

the module for pseudo-differential operation.

In addition to the SE/D1 jumpers mentioned, two other jumpers are provided to allow grounding of an input channel (in either the SE or DI mode). This is done to allow software to automatically correct any drift in the ADC offset adjustment. In the SE mode,

J23

(Channel 0) or J24 (Channel 8) may be inserted. In the differ-

ential mode, both

J23

and

J24

(Channel 0) must be inserted.

2.6.3

Input Voltage Type and Voltage Range Selection (J3,

J5)

The analog inputs may be configured to accept either unipolar or bipolar full-scale input voltages. Jumpers J3 and J5 determine which voltage type the module will accept.

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XVME-500/590 Manual February, 1988

The analog input channels can be jumper-configured to accept voltages in any one of three ranges. There are two bipolar ranges and one unipolar range.

Bipolar

Ranges Unioolar Range

+5v

$ov

0 to 10V

The

(bipolar) and

0-10V

(unipolar) ranges are selected by jumper J3A. Jumper

J3B

selects the

&lOV

bipolar range. Table 2-7 shows the options.

Table 2-7. Voltage Type and Voltage Range Selection Options

Input Range Install Remove Unipolar:

0-10V J3A,

J5A

J3B,

J5B

Bipolar:

+5v

IlOV

J3A,

J5B

J3B,

J5A

J3B,

J5B

J3A,

J5A

2.6.4 INPUT GAIN RANGE SELECTION

2.6.4.1

Programmable Gain Selection (XVME-500/590-2, XVME-500/590-3)

(J15 & J19;

J14 & J18; J16 &

J20)

The gain for each input channel is individually programmable over any one of three

possible gain ranges. First, the required range is selected by configuring one of three pairs of jumpers (J15 &

J19; J14 &

J18; or

J16 &

J20). Next, the specific gains (within the selected range) are determined by the user and written to onboard Gain RAM during an input initialization procedure (See Section 3.3.3). Thereafter, any time an input is converted (analog-to-digital), it will automatically apply the gain factor for which it was previously programmed.

The three input

gain ranges are:

Three Input Gain Ranges

Range

1, 2, 5, or 10

Range

4, 8, 20, or 40

Range

10, 20, 50, or

100

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XVME-500/590 Manual February, 1988

The various input gains are selected by installing two jumpers for each option. Table 2-8 shows the options and corresponding jumpers.

Table 2-8. Input Gain Range Selection Jumpers

(versions 2 & 3 only)

Jumpers Installed

J15,

J19

J14,

J18

J16,

J20

Gain Range Selected

Range 1 Range 2 Range 3

Only one range can be selected at a time. The input channels can only be programmed for specific gains within the selected range.

2.6.4.2 Fixed Gains (Jumper-Selectable - version 1 only)(J6, J7, J8, or J9)

The fixed gain for each analog input channel in the version 1 of the XVME-500/590 is selected by installing or removing one of several jumpers

(J6,

J7,

J8,

J9).

Gains can be selected from one of four different levels as follows:

Level

Gain Selected

(Unity Gain) xl

x10

xl00

xl000

Only one gain factor can be selected at a time.

The input channels can only be

programmed for a specific gain range.

Thus, when a jumper is installed to achieve a particular gain, others must be removed. Table 2.9 shows which jumpers are used to select which gains.

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XVh4&500/590 Manual February, 1988

Table 2-9. Jumpers Selecting Fixed Gains

Gain Selected Jumper Installed

xl None x10

J9 xl00 J8 xl000 J6

Jumpers Removed J6, J7, J8, J9 J6, J7, J8

J6, J7, J9 J7, J8, J9

2.6.4.3

Resistor-Programmable Gains (version 1 only)

The resistor-programmable gains option increases the versatility of the XVME-

500/590-l. In order to utilize these gains, it is necessary to install:

A fixed-value resistor (value determined by equation following)

A potentiometer (for fine adjustment of the gain), and

A cut on the printed circuit board.

Installing Resistors To Modify Fixed Gain (Procedure)

Remove power from the module.

Remove module from the cardcage.

Locate the circuit trace in Figure

2-4.

Figure

2-4A

shows the circuit

trace for the XVME-590/l).

2-15

XVME-500/590 Manual February, 1988

Use a sharp tool (knife, X-acto blade, etc) to sever the trace, as shown in Figure 2-4 (or Figure

2-4A

for the XVME-590).

Use the following formula to calculate the values of

‘Rl0’

and ‘R13’:

Rg = 40K / G - 1 G = desired gain (any number between 1 and 1000) Example: Determining adjustment to R13 necessary to get a gain of 8.

By using the formula, and assigning

‘G’

the desired value of

‘8’

, Rg is calculated to be 5714 ohms:

G = 8 Rl0 =

5.1K

(standard value) R13 = 1K (adjusted to 614 ohms)

Rg = (40K

8 - 1) = (40,000 / 7) = 5714

Rg is also equal to the sum of values

‘Rl0’

and ‘R13’ (Rl0 + R13). The

standard value of

‘Rl0’

5.1K,

and that of ‘R13’ is

1K.

Because the sum

of these to standard values is

6.1K (6100),

‘R13’ must be adjusted from

614K

(614) to achieve the desired value.

NOTE

The resistor used should be type RN-55E, with a

temperature coefficient of 25/ppm/Degree C, max.

The resistor ‘RI0’ should be soldered in the position designated by the silkscreen (see Figure 2-4 or Figure

2-4A).

Potentiometer ‘R13’ can be either a BECKMAN (Model 66W) or an ALLEN-BRADLEY (Model 85W). Carefully solder the potentiometer on the

I PCB as shown in Figure

2-1A

or Figure

2-2A

(Note the reference to the

adjustment screw in that figure).

8) Remove jumpers J6, J8 and J9 (if any are in place).

Install jumper

J7.

10)

Re-install the module in the cardcage and perform the input calibration procedure (outlined in Chapter 4, Section 4.2).

11) Once the module is calibrated, the gain may be fine-tuned by monitoring the voltage at TPl (a ground) and TP2 with a DVM, while adjusting potentiometer ‘R13’.

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XVME-500/590 Manual February, 1988

2.6.4.4

Conversion Resolution (J2A,

J2B)

A jumper has been provided to change the ADC to an eight-bit converter. This will allow a faster conversion (if required by the user), but will decrease conversion resolution.

If this option is chosen, the lower 4 data bits will have to be masked

by software. Table

2-10

shows the conversion resolution jumpers.

Table

2-10.

Conversion Resolution Jumpers

Conversion Desired Jumper Installed

12-bit

J2A

8-bit

J2B

Figure 2-5 shows the various formats of the data input register when either

J2A

J2B

are installed.

High Byte Low Byte

015

014

013 012 DII DIO

d7 D6 D5

04 03

Base + 86H

Base

87H

J2A 12-bit

resolution (bytes DII-DO)

J2B 8-bit resolution (D11-D4)

(D3-D0

ignored

by software)

Figure 2-5. How Jumpers Change the Data Register

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XVME-500/590 Manual February, 1988

2.6.4.5 External Trigger Selection (J 17)

Jumper J17 is installed for external trigger usage.

When installed, pin-49 (of connector JK1) becomes logic ground reference. If J17 is used for an external trigger option,

J21D

should not be used. When

J17

is removed, pin-49 uses

J21

as common analog ground for pseudo-differential (PDI) mode. If both PDI and an external trigger are desired,

do not use

J17.

Find a logic ground for external

trigger elsewhere on the module.

2.6.5 Input Calibration Grounding Jumpers (523, 524)

These jumpers are used to ground a single input channel in either the SE or DI mode for purposes of programmable gain offset adjustment (calibration).

If the

inputs are configured for single-ended operation, inserting jumper

J23

shorts input

channel 8 to ground. Inserting

J24

shorts channel 0 to ground. In differential mode,

inserting both

J23

(channel 0 Hi) and J24 (channel 0 Lo) will short channel 0 to

ground. Table 2-11 shows the relationship between the jumpers and the grounded channels.

Refer to Chapter 4 (Calibration) for exact input calibration procedure.

Table 2-11. Input Calibration Grounding Jumpers

Jumpers

J23 & J24

Input Configuration Single-ended (SE)

Single-ended (PDI) Differential

Channel Sorted to Ground

Channel 8 Channel 0 Channel 0

2.7 CONNECTOR PIN ASSIGNMENTS

2.7.1

Connector

JKl

(XVME-500 Only)

The analog input channels are accessible on the front panel of the module via the single mass termination header labeled,

JKl.

Connector JKl is a

50-pin

header used to input analog signals. Its pin-out is compatible with the Analog Devices 3B series Universal Signal Conditioning System. Table 2-12 defines JKl’s pin-out.

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XVME-500/590 Manual February, 1988

Table 2-12. Input Connector JKl

Flat Cable Conductor

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22

23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

Single-Ended

Configuration

CH. 0 CH. 8 ANALOG GND CH. 9 CH. 1 ANALOG GND CH. 2 CH. 10 ANALOG GND CH. 11 CH. 3 ANALOG GND CH. 4 CH. 12 ANALOG GND CH. 13 CH. 5 ANALOG GND CH. 6 CH. 14 ANALOG GND CH. 15 CH. 7 ANALOG GND CH. 16’ CH.

24* ANALOG GND CH. 25” CH. 17” ANALOG GND CH. 18” CH.

26* ANALOG GND CH.

27* CH.

19* ANALOG GND CH. 20” CH.

28*

Those channels marked by

(*)

are only available

expansion kit is installed. (Table continued next page.)

Differential Configuration

CH. 0 LO CH. 0 HI ANALOG GND CH. 1 HI CH. 1 LO ANALOG GND CH. 2 LO CH. 2 HI ANALOG GND CH. 3 HI CH. 3 LO ANALOG GND CH. 4 LO CH. 4 HI ANALOG GND CH. 5 HI CH. 5 LO ANALOG GND CH. 6 LO CH. 6 HI ANALOG GND CH. 7 HI CH. 7 LO ANALOG GND CH. 8 LO* CH. 8 HI* ANALOG GND CH. 9 HI* CH. 9 LO* ANALOG GND CH. 10 LO* CH. 10 HI* ANALOG GND CH. 11 HI* CH.

LO* ANALOG GND CH. 12 LO* CH. 12 HI*

after an XVME-9 10 channel

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XVME-500/590 Manual February, 1988

Table 2-12. Input Connector JKI (cont’d)

Flat Cable Single-Ended Conductor Configuration

Differential Configuration

ANALOG GND ANALOG GND

CH. 29* CH. 13 HI*

CH.

21*

CH. 13 LO*

ANALOG GND ANALOG GND

CH. 22* CH. 14 LO*

CH. 30* CH. 14 HI*

ANALOG GND ANALOG GND

46 CH.

31*

CH. 15 HI*

47 CH. 23* CH. 15 LO* 48 ANALOG GND ANALOG GND

POWER GND/PD GND POWER GND/PD GND

50 EXT TRIGGER

EXT TRIGGER

Those channels marked by

(*)

are only available after an XVME-910 channel

expansion kit is installed.

2.7.2 Pl Connectors

Connectors Pl and P2 are mounted at the rear edge of the board (see Figure 2-1 or Figure 2-2). The pin connections for Pl (a 96-pin,

3-row

connector) contains the standard address, data, and control signals necessary for the operation of VMEbusdefined NEXP modules. (The signal definitions and pin-outs for the connector are found in Appendix A of this manual). The Pl connector is designed to mechanically interface with a VMEbus defined Pl backplane.

2.7.3

P2 Connector (XVME-590 Only)

The P2 connector is a standard VMEbus P2 backplane connector with 96-pins (3 rows). (The pin-outs for the connector P2 are found in Appendix A of this manual.) The P2 connector is designed to interface with a VMEbus defined P2

backplane. The P2 connector for the XVME-590 will accept the input analog signals via the user defined VMEbus pins on rows A and C (see Table 2-13).

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XVME-500/590 Manual February, 1988

Table 2-13.

P2’s -

JKl Compatibility Pin-out

Flat Cable Conductor

2 3

4 5 6 7

10 11 12

13 14 15 16 17

18 19

20 21 22 23 24 25 26 27 28

30 31 32 33 34 35 36 37 38

40 41 42 43

Single-Ended Configuration

CH. 0

CH. 8

ANALOG GND

CH. 9 CH. 1

ANALOG GND

CH. 2

CH. 10

ANALOG GND

CH. 11

CH. 3

ANALOG GND

CH. 4 CH. 12

ANALOG GND

CH. 13 CH. 5

ANALOG GND

CH. 6 CH. 14

ANALOG GND

CH. 15 CH. 7

ANALOG GND

CH. 16 CH. 24

ANALOG GND

CH. 25 CH. 17

ANALOG GND

CH. 18 CH. 26

ANALOG GND

CH. 27

CH. 19

ANALOG GND

CH. 20 CH. 28

ANALOG GND

CH. 29 CH. 21

ANALOG GND

CH. 22 CH. 30

ANALOG GND

Differential

Configuration

Connector

CH. 0 LO Cl CH. 0 HI Al

ANALOG GND C2

CH. 1 HI A2 CH. 1 LO C3

ANALOG GND A3

CH. 2 LO C4 CH. 2 HI A4

ANALOG GND c5

CH. 3 HI A5 CH. 3 LO

ANALOG GND A6

CH. 4 LO C7 CH. 4 HI A7

ANALOG GND

CH. 5 HI A8

CH. 5 LO

ANALOG GND A9

CH. 6 LO Cl0 CH. 6 HI Al0

ANALOG GND Cl1

CH. 7 HI All

CH. 7 LO Cl2

ANALOG GND Al2

CH. 8 LO Cl3 CH. 8 HI Al3

ANALOG GND Cl4

CH. 9 HI Al4 CH. 9 LO Cl5

ANALOG GND Al5

CH. 10 LO Cl6 CH. 10 HI

Al6

ANALOG GND Cl7

CH. 11 HI Al7 CH. 11 LO Cl8

ANALOG GND Al8

CH. 12 LO

Cl9

CH. 12 HI

A19

ANALOG GND

C20 CH. 13 HI A20 CH. 13 LO C21

ANALOG GND A21

CH. 14 LO C22 CH. 14 HI A22

ANALOG GND C23

XVME-500/590 Manual February, 1988

Table 2-13.

P2’s -

JKI Compatibility Pin-out (Cont’d)

Flat Cable Conductor

Single-Ended Configuration

46 CH. 31 47 CH. 23 48

ANALOG GND

POWER GND/PD GND

50 EXT TRIGGER

Differential Configuration

onnector

CH. 15 HI

A23

CH. 15 LO

C24

ANALOG GND

A24

POWER GND/PD

C25

EXT TRIGGER

A25

2.8 JUMPER LIST

The following table summarizes all the XVME-500/590 jumpers and their functions.

Jumper Description

JlA JlB J2A J2B J3A J3B J4A J4B J5A

J5B J6 J7

J8 J9 Jl0 Jll J12 J13 J14 J15 J16 J18 J19 J20 J17 J21A J2lB J21C J21D

Analog-to-binary conversion with

J4A

Analog-to-two’s complement conversion with

J4B Allows 12-bit resolution in ADC conversions Allows 8-bit resolution in ADC conversions Voltage range selector to ADC; 0-l0V,

+5V

Voltage range selector to ADC;

+l0V Analog-to-binary conversion with J1A Analog-to-two’s complement conversion with J

1B Unipolar voltage range selector Bipolar voltage range selector Fixed gain selector (x1000)

Resistor programmable gain selector Fixed gain selector (x100) Fixed gain selector (x10) A3 interrupt level selector A2 interrupt level selector Al interrupt level selector IN = supervisory only; OUT =supervisory or non-privileged Programmable gain range selector; Range 2 (4, 8, 20, 40) Programmable gain range selector; Range 1 (1, 2, 5, 10) Programmable gain range selector; Range 3 (10, 20, 50, 100) Programmable gain range selector (accompanies J14) Programmable gain range selector (accompanies J15) Programmable gain range selector (accompanies J16) External trigger selector (remove J21A-D;do not use with PDI) Configures module for SE operation;accompanies

J25 & J21C

or D Configures module for DI operation Configures module for SE operation with

J21A & J25

Configures module for PDI operation with

J21A & J25

Table 2-14. XVME-500/590 Jumper List

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XVME-500/590 Manual February, 1988

Jumper J22A

J22B J22C J22D

J23 J24 J25 J26 J27 J28 J29 J30

J31

J32

Table 2-14. XVME-500/590 Jumper List (Cont’d)

Description

Determines settling time 80uSec for fixed gain x1-100 Determines settling time

10uSec

for programmable gain amp

Determines settling time 24uSec for fixed gain

x100

Determines settling time

16uSec

(not used) Ground allows auto drift control by software;input calib. Ground allows auto drift control by software;with

J23

for DI IN = SE mode selected; OUT = DI mode selected Module-base address-select jumper Module-base address-select jumper

Module-base address-select jumper Module-base address-select jumper Module-base address-select jumper Module-base address-select jumper XVME-590 Only.

J32

is jumpered in foil to connect analog to

digital ground. May be cut if user desires.

2.9 POTENTIOMETER LIST

The following table summarizes the potentiometers and their functions (Table 2-15):

Table 2-15. Potentiometers

Resistor No.

R2 R8 R9 RI1 R13 R17

Description

Unipolar offset adjustment; ADC Bipolar off set adjustment; ADC

’Gain adjustment; ADC

Input offset adjustment; fixed gain instr. amp (version 1) Gain adjustment; resistor programmable gain (version 1) Input offset adjustment; programmable gain (version 2 & 3)

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XVME-500/590 Manual February, 1988

2.10

MODULE INSTALLATION

XYCOM XVME modules are designed to comply with all physical and electrical VMEbus backplane specifications. The XVME-500 Analog Input Module is a singlehigh VMEbus module.

As such, it only requires the Pl backplane. The XVME-590

Analog Input Module may use the P2 of the VMEbus backplane.

CAUTION

Never attempt to install or remove any boards before turning off the power to the bus, and all related external power supplies.

Prior to installing a module, you should determine and verify all relevant jumper configurations, and all connections to external devices or power supplies. (Please check the jumper

, configuration against the diagrams and lists in this manual.)

To install a board in the cardcage, perform the following steps:

1) Make sure the cardcage slot (which will hold the module) is clear and accessible.

2) Center the board on the plastic guides in the slot (so the handle on the front panel is towards the bottom of the cardcage).

3) Push the card slowly toward the rear of the chassis, until the connectors engage (the card should slide freely in the plastic guides).

4) Apply straightforward pressure to the handle on the panel front, until the

connector is fully engaged and properly seated.

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XVME-500/590 Manual February, 1988

NOTE

It should not be necessary to use excessive force or pressure to engage the connectors. If the board does not properly connect with the backplane, remove the module and inspect all connectors and guide slots for possible damage or obstructions.

5) Once the board is properly seated, secure it to the chassis by tightening the two machine screws at the extreme top and bottom of the board.

2.10.1

Installing a 6U Front Panel Kit (XVME-500 Optional)

XYCOM’s

XVME-941 is an optional 6U front panel kit designed to replace the existing 3U front panel on the XVME-500. The 6U front panel facilitates the secure installation of single-high modules in those chassis which are designed to accommodate only double-high modules. The following is a step-by-step procedure for installing the 6U front panel on an XVME-500 module (See Figure 2-6 for a graphic depiction of the installation procedure).

1) Turn power off.

2) Disconnect the module from the bus.

3) Remove the screw and plastic collar assemblies (labeled 6 & 7) from the extreme top and bottom of the existing 3U front panel (11).

4) Install the screw assemblies in their corresponding locations on the 6U front panel.

5) Slide the module identification plate (13) from the handle (9) on the 3U front panel. By removing the screw/nut found inside the handle, the entire assemble will separate from the 3U front panel.

6) Remove the counter-sunk screw (8) to separate the 3U front panel from the printed circuit board (12).

7) Line-up the plastic support brackets on the printed circuit board with the corresponding holes in the 6U front panel (i.e., the holes at the top and top-center of the panel). Install the counter-sunk screw (8) in the hole

near the top-center of the 6U panel, securing it to the lower support bracket on the printed circuit board.

8) Install the handle assembly (taken from the 3U panel) at the top of the 6U panel, using the screw and nut previously ‘attached inside the handle. Secure the handle by sliding the I.D. plate into place.

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XVME-500/590 Manual February, 1988

Chapter 3

PROGRAMMING

3.1 INTRODUCTION

This chapter provides information required to program the XVME-500/590 Analog Input Module for analog-to-digital signal conversions.

The presentation of the

information is as follows:

Presentation of the module address map with programming locations

Discussion of base addressing and how the conversion registers are accessed

A/D conversion modes and principals

3.2 BASE ADDRESSING

The XVME-500/590 Analog Input Module is designed to be addressed within the VMEbus- defined 64K Short I/O Address Space.

When the module is installed in a system, it will occupy a IK byte block of the Short I/O Address Space. The base address decoding scheme for the XVME I/O modules positions the starting address for each board on a 1K boundary. Thus, there are 64 possible base addresses

(1K boundaries) for the XVME-500/590 within the Short I/O Address Space. (Refer to Section 2.5.1 for the list of base addresses and their corresponding list of jumper configurations.) ’

The logical registers utilized for the conversion data on the XVME-500/590 are given specific addresses within the 1K of block-address space occupied by the module. These addresses are offset from the module base address. Figure 3-1 shows a representative memory map for the XVME-500/590 module.

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XVME-500/590 Manual February, 1988

EVEN ODD

Base + OOH

0lH

+ 7EH + 80H + 82H +

84H

+ 86H

UNDEFINED

w--w-----

--m---s-w

Status/Control Reg.

Interrupter/Vector Reg.

--w-------i

Gain/Channel Reg.

A/D High Byte A/D Low Byte

UNDEFINED

7FH 81H 83H

85H 87H

rlgure

3-l. XVME-500/590 Analog Input Module Memory Map

3-2

XVME-500/590 Manual February,

I988

A specific register on the module can be accessed by simply adding the specific

For example, the module Status/Control

81H

within the I/O interface block.

Thus, if the module base address is jumpered to l000H, the Status/Control Register would be accessible at address 108IH.

(Module base address)

1OOOH +

(Register offset)

81H

(Status/Control Reg.)

1081H

For memory-mapped CPU modules (such as 68000 CPU modules), the short I/O address space is memory-mapped to begin at a specific address.

For such modules,

the register offset is an offset from the start of this memory-mapped short I/O address space. For example, if the short I/O address space of a 68000 CPU module

starts at F90000H, and if the base address of the XVME-500/590 is set at

lOOOH,

then the actual module base address would be F91000H.

3.3 INTERFACE BLOCK

Each of the following programming locations of the XVME-500/590 interface block (previously shown in Figure 3-1) are defined in greater detail in this chapter’s remaining sections:

Status/Control Register (base + 81H): (Section 3.3.1) The status/control register contains eight single-bit locations which provide control signals to

reset the module, enable interrupts, start conversion, show if there are interrupts pending, and select the mode of analog input operation (i.e., single channel, sequential channel, random channel and external trigger).

Interrupt Acknowledge (IACK) Vector Register (base + 83H): (Section 3.3.2) Holds the vector to be driven onto the VMEbus when an interrupt generated by the input module is acknowledged.

Gain/Channel Register (base + 85H): (Section 3.3.3) This register is used to initiate random channel conversions, and to program a 32-element input gain RAM as part of an input initialization procedure.

The lower five bits of this register are used to select one of the input channels for conversion, or gain programming. The sixth bit determines whether the register is used to program gain, or to read the gain and convert a specific channel. The upper two bits are used to select one of four allowable gain settings to be programmed for a selected channel.

A/D Input High Byte (base + 86H) and A/D Input Low Byte (base + 87H): (Section 3.3.4) These locations contain the digital data which results from A/D conversions.

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XVME-500/590 Manual February, 1988

3.3.1

Status/Control Register (Base + 8lH)

The status/control register provides the control signals required to reset the module, enable interrupts, start conversion and select the mode of operation. The four modes of operation are single, sequential, random channel and external trigger.

Writing to the status/control register can: initiate an A/D conversion, select an A/D conversion mode, reset the module, and enable module interrupts to the VMEbus.

Reading from the status/control register can indicate: whether or not a conversion is in progress (or when a conversion is complete), and if there are interrupts pending. Table 3-1 describes the functions of the status/control bits.

Table 3-1. Status/Control Register

3.3.1.1

Bit No.

Function

Status

Control

0 - -

1 -

Interrupt Pending No Connection .

Interrupt Enable Interrupt Enable

Board Reset Board Reset

Mode 0

6 Mode 1 Mode 1 7

A/D Busy

Convert

Status/Control Register Bit Definitions

This bit acts as a ‘busy’ flag, showing when an A/D conversion is in

progress. A logic ‘1’ at this location indicates the analog input module is in the process of making a conversion. The level of this bit should be checked prior to start-up of new conversions, or the in-progress conversion could be ruined.

Writing a logic ‘1’ to this bit “forces” a conversion to start. This method of forcing a conversion works in any of the four A/D data conversion modes.

D6 & 5: These are read/write bits that describe which of the four analog

modes the module will operate within. Table 3-2 shows the four input mode options.

3-4

lXVME-500/590

Manual

February, 1988

Table 3-2. Input Mode Options

Mode Bits

Bit

A/D Conversion Mode

0 0

Single Channel

0 1

Sequential Channel

1 0

Random Channel

1 1

External Trigger

Single Channel Starts conversion process when reading lower 8 bits

Sequential Channel Channels are converted in a sequence, beginning

with a specific number; starts conversion process when reading lower 8 bits

Random Channel Starts conversion after channel number is written

to Gain Channel register (in read mode; see Table

2-6)

External Trigger Starts conversion on positive trigger signal

received on Pin 50 (ground reference on Pin 49) of of connector JKl (see Figure 3-6 for timing)

The use of input conversion modes is explained in greater detail in Section 3.4.1

This bit provides a means for a module software reset. If “toggled” to logic ‘l’, then back to logic ‘0’, a software reset will occur (in bits D7 and D2)

A logic ‘1’ written to this location will enable the module to generate VMEbus interrupts (if the associated jumpers are set appropriately; see Section 2.5.3)

This bit is an ‘interrupt-pending’ flag. Logic ‘1’ at this location says an A/D conversion has been completed. The interrupt-pending bit can be cleared in one of three ways:

Causing a new A/D conversion (see bit D7)

Performing backplane or software reset (see bit D4)

Reading the converted input data from the lower order

data byte

Dl & D0: These bits are not used by the XVME-500/590 status/control

3-5

XVME-500/590 Manual February, 1988

3.3.2

Interrupt Acknowledge (IACK) Vector Register (Base + 83H)

The XVME-500/590 is capable of generating an interrupt at the completion of an A/D conversion at any of the seven levels allowed by the VMEbus specification. Interrupts are enabled by writing a logic ‘1’ to bit D3 of the status/control register.

The ability to generate module interrupts is dependent upon setting three jumpers (Jl0, Jll, 512; see Section 2.5.3). The Interrupt Acknowledge Vector Register is a write-only register. It holds the vector to be driven on the VMEbus when the interrupt generated by the input module is acknowledged. This register is accessible at the module base address + 83H.

3.3.3

Gain/Channel Register (Base +

85H)

The XVME-500/590 uses a 32-element on-board Gain RAM to store a gain factor for each analog input channel. Only two of the three versions of the module are software-programmable (versions 2 & 3).

The XVME-500/590-l (as displayed in Sections 2.6.4.2 and 2.6.4.3) realizes gains in

one of two non-software methods. The first method is gain selection via jumpers.

This method allows the input channels to be programmed for a specific gain in one

range. The second method allows modifications of the fixed gain via resistor (and potentiometer) programming.

This section is devoted entirely to the programming capabilities of the more versatile XVME-500/590-2 and XVME-500/590-3. In these modules, one of three gain ranges is selected via jumper-option at the time the module is installed (see Section 2.6.4.1). For convenience, the gain ranges and factors are repeated in Table 3-3

Table 3-3. Input Gain Ranges and Factors

Gain Range

Initialization

Gain Factors Covered

1, 2, 5 or 10

4, 8, 20 or 40

10, 20, 50 or 100

Immediately after power-up or system-reset, the Gain RAM should be programmed (initialized) to provide each input channel (16 DI or 32 SE) with an associated gain factor. Once an input channel is initialized this way, the associated gain factor will automatically be applied when any A/D conversion occurs on that channel.

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XVME-500/590 Manual February, 1988

The Gain RAM is programmed by using the Gain/Channel Register (base + 85H). If the module is operating in the Random Channel conversion mode (see Section

3.4.1.3) this register may also be used to “force” an A/D conversion start (much like the function performed by bit D7 of the status/control register). Figure 3-2 shows how the Gain/Channel register is arranged.

XVME-50012, 50013

XVME-500/l

D7 D6 05 04 03 02

Selects Gain

00-Gain=1

01-Gain=2

10-Gain=3

11-Gain=4

Selects Channel

Configures the Register to Program (Iogic“1”)

or to Read/Convert the gain

Figure 3-2. Gain/Channel Register

The first five bits of this register (DO-D4) are used to select one of the input channels (0 thru 15 for differential; 0 thru 3 1 for single-ended) for channel conversion or channel gain programming. Table 3-4 lists the channel selection codes which are used for DI (0-15) and SE (0-31) operation.

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XVME-500/590 Manual February, 1988

Table 3-4. Channel Selection Codes

D4 0

0 0 0 0 0 0 0 0 0

0 0 0 0 0 0

1 1 1 1 1

1 1 1

1 1 1 1 1

Data Bits

Yi-j-YT

0 0 0 0 0 0 0 0

1 1 1 1 1 1

1 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1

0 0 0 0

1 1 1

1 0 0 0 0

1 1 1

1 0 0 0 0

1 1 1 1

Dl 0

1 0 0

0 0

I 0 0

DO 0

Channel 0

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5

Channel 6

Channel 7

Channel 8

Channel 9

Channel 10

Channel 1I

Channel 12

Channel 13

Channel 14

Channel 15

Channel

16*

Channel

17*

Channel

18*

Channel

19*

Channel

20*

Channel

21*

Channel

22*

Channel

23*

Channel

24*

Channel

25*

Channel

26*

Channel

27*

Channel

28*

Channel

29*

Channel

30*

Channel

31*

Channel Selected

Those channels marked by

(*)

are only available after installation of an XVME-

910 channel expansion kit.

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XVME-500/590 Manual February, 1988

Programmable Gain Selection

D7 &

D6:

The upper two bits of the register (D6 & D7) are used to select one of four gain factors available in each of the three jumper-selectable gain ranges (see Table 3-3). Table 3-5 shows which codes are written to bits D6 & D7 to select specific gain factors (according to the gain range previously selected).

Table

3-5.

Gain Selection Bits

Gain/Channel Register Gain Selected

D7 D6

Range 1

Range

Range 3

0 0 1 4 10 0 1 2 8 20

1 0 5 20 50 1 1 10 40 100

Bit D5: This sixth bit of the gain/channel register allows the register to be

used to program (initialize) gain RAM, or it allows the register to be used to read the

gain RAM

The specific channel can be programmed to apply the chosen gain factor any time it converts a signal as follows:

Write logic ‘1’ to bit D5 with a specific channel number

(as in Table 3-5)

Add desired gain factor from the selected gain range (Table 3-6)

The corresponding gain factor and channel number (previously programmed) can be read back by reading address base + 85H.

EXAMPLES Example 1: Programming Channel 8 For a Gain of Two By writing 68H to the module base address + 85H, input-channel 8 would be

programmed for an automatic application of a gain factor of 2 when it converts a signal. (Note logic numbers written beneath bit numbers in Figure 3-3.)

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XVME-500/590 Manual February, 1988

07 D6 D5 04

03 02

0 0 0

Gain Factor

of 2

Enables the Register to Write* to

Gain RAM

Selects Channel 8 for gain

programming

Figure 3-3. Select Channel 8 For Gain

Example 2: Reading and Initiating a Conversion at Channel 15 By writing OFH to the module base + 85H (in the Random Channel mode), the Gain

RAM for channel 15 can be read (the gain is read at bits D6

D7). When reading base + 85H, D5 will always be zero because it is grounded. In addition, a conversion is initiated on channel 15 (See Figure 3-4).

07 06 05 04 03

‘02

X X

0 0

1 1 1

1 I

Gain Factor’

Enables

Selects Channel

is read here

15 for a gain

Convert Mode Read /Convert

Figure 3-4. Conversion at Channel 15

3.3.4

A/D Data Input Register (Base + word location 86H)

The A/D converter produces digital data which corresponds to the applied analog input from a specified channel. This digital data is accessible to the ‘Host’ processor at the 16-bit A/D Data Input Register (base + 86H). A word register

(16-

bit) is used to provide the space necessary for

12-bit

resolution. Digital

information in this register may be read in either a byte or word format.

3-10

XVME-500/590 Manual February, 1988

When reading the A/D input data, however, the high byte (base + 86H) must be read before the low byte (base + 87H); or they must be read simultaneously. This stipulation is mandatory because a read from the low data byte will initiate a new A/D conversion if the module is operating in either the sequential or singlechannel conversion mode. Thus, it would write over the information contained in the higher byte.

Figure 3-5 shows the format of the A/D data input register.

High Byte Low Byte

D15 D14

D13

D12

Dll

Dl0

D9 D8 D7

D6 D5 D4 D3

D2 Dl

Base + 86H Base + 87H

Figure 3-5. A/D Data Input Register Format

The manner in which data appears at the A/D Data Register depends upon which input operation mode has been previously programmed (see Section 3.3.1.1 for the explanation of status/control bits D5 & D6; and Section 3.4 for information on the analog input modes).

3.3.4.1

A/D Data Format

The A/D converter digitizes the value of an analog signal on the input of a selected channel. The digital format of the converted data depends upon which data format and input voltage mode (unipolar or bipolar) have been previously jumpered at module installation (see Sections 2.6.1 and 2.6.2).

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XVME-500/590 Manual February, 1988

NOTE

The LSB (Least Significant Bit) represents the change in input voltage that results in an increase or decrease of the binary code by one count. The LSB is derived from the full range of either current or voltage (Vfsr), divided by the maximum conversion resolution (i.e., 12 bits or 4096 in binary counts). Thus, the value of one LSB can be determined by the following:

Unipolar LSB = Vfsr

4096

Bipolar LSB = (+Vf

sr)-(-Vf

sr)

4096

The following list shows the value of l-LSB for each range:

+5v =

2.44 14mV

+1ov = 4.8828mV

1OV

= 2.4414mV

3.4 A/D CONVERSION PRINCIPALS Any procedure for configuring the Analog Input Module to convert analog inputs to

digital data must include the following elements:

Jumper Configurations (see Chapter 2) Jumpers must be configured for

the desired interrupt level, input type (DI or SE; and bipolar or unipolar), input voltage range, input gain range and input binary data format (straight binary, offset binary or two’s complement).

Initialization

(see Section 3.3.3)

Gain RAM must be initialized

(programmed) by writing to the gain/channel register. Calibration (see Chapter 4) Calibrations must be performed at installation

and whenever adjustments are made to change gains and ranges.

This will help to assure accurate conversion of data by the analog input module.

Conversion Mode Selection (see Sections 3.4.1 and 3.1.1) One of four A/D conversion modes must be selected by writing to the status/control register.

Conversion Initiation (see Sections 3.3.3 and 3.4.1) The A/D conversion process must be initiated.

A conversion may be ‘force’ started, initiated

by reading the low order byte of the A/D Data Register in two of the four modes, or started via External Trigger.

3-14

XVME-500/590 Manual February, 1988

3.4.1

A/D Conversion Modes

The A/D conversion process can operate in any one of four possible conversion modes. They are:

MODE

DEFINITION

0 Single Channel Conversion: Repeated A/D conversions are performed

on a specified channel.

Sequential Channel Conversion: Channels are converted in sequence beginning with a specified channel.

Random Channel Conversion: A single A/D conversion is performed on the selected channel.

Externally

Triggered Conversion: A selected channel will be converted only when a positive trigger signal (referenced to logic ground is received on Pin-50 (ground reference on Pin-49) of connector JKI.

Four conditions may cause a conversion to be initiated. These conditions are:

Writing to the channel/gain register in random channel mode, with data bit 5 at a logic ‘0’

Reading the low byte from the ADC while in the single or sequential channel mode

Execution of the convert command

Initiating an external trigger

A jumper-selectable settling time is provided for the two instrumentation amplifiers and for the amount of time (they) take to settle.

Settling times of

I0uSec, 16uSec,

24uSec and 80uSec are available.

NOTE

If the programmable gain amp is used,

10uSec

settling is all that needs to be jumpered. The

fixedgain amp, however, requires a settling time of 24uSec for gains of 1 to 100, and 80uSec for a gain of more than 100.

3-15

XVME-500/590 Manual

February, 1988

SETTLING TIMES for these module amplifier jumpers are as follows:

J22A -

24uSec J22B - 10uSec J22C - 80uSec J22D - 16uSec

(not used)

A conversion mode is selected by writing its corresponding two-bit code to bits D5

and D6 of the status/control register (see Table 3-2 Input Mode Options).

The following subsections define each of the input conversion modes and list the procedure for using each.

3.4.1.1

Single Channel Mode

In the single-channel mode, the module will automatically start another conversion on the specified channel, after the low-order A/D input byte (base + 8

1H)

has been

read. Procedure

Write the 81H).

The

appropriate control byte to the status/control register (base +

objective is to set both D5 and D6 to logic ‘0’.

Select the

desired channel by writing the channel number to bits D0 thru

D4 of the gain/channel register (base + 85H).

Assuming the corresponding Gain RAM was properly initialized (programmed) after powerup, the gain will not in gain is desired).-

have to be rewritten at this time (unless a change

To initiate the first conversion, perform a “dummy” read (base +

87H),

or force a conversion by writing a logic ‘1’ to bit D7 of the status/control register (make sure the appropriate mode and interrupt states have been selected).

Wait until the conversion is complete (i.e.,

check the busy flag (bit D7)

of the status/control register, or use interrupts). Read the results of the conversion from the A/D input register -- high

byte (base + 86H) before the low byte (base

87H),

or a 16-bit read.

After the low byte is read,

a new conversion will automatically be

initiated on the same channel.

3-16

XVME-500/590 Manual February, 1988

3.4.1.2

Sequential Channel Mode

In the sequential-channel mode, the module will automatically increment the channel

by one and initiate a conversion on the next channel (previous channel + 1). This

will occur after the low order A/D input byte (base + 87H) has been read. A conversion can be initiated in this mode without incrementing the channel number by writing a logic

‘1’ to bit D7 of the status/control register (by forcing a

conversion). Procedure

Write a control byte to the status/control register (base + 81H) that sets bit D5 to logic ‘1’ and bit D6 to logic ‘0’.

Select a starting channel by writing the channel number to bits D0 thru D4 of the gain/channel register (base + 85H). Assuming that the cor-

responding Gain RAM was properly initialized (programmed) after powerup, the gain will not have to be rewritten at this time (unless a change in gain is desired).

To initiate the first conversion, write a control byte to the status/control register that sets bit D7 to logic ‘1’. This action will force a conversion ’ on the specified starting channel without incrementing the channel number. Then, by reading the low order A/D data byte (base +

87H),

the channel number will be incremented by one; and the next conversion will be started.

NOTE

The first conversion may also be initiated by doing a “dummy” read of the low order A/D input byte. This method, though, will increment the channel number written to the Gain/Channel Register in step 2. When the dummy read method is used to initiate the first conversion, the channel offset may be corrected by specifying a channel number (in step 2) which is one less than the desired starting channel number (e.g., if the first channel for conversion is channel 0 then channel 31 should be entered as the starting channel).

Wait until the conversion is complete (i.e., check the busy flag (bit D7) of the status/control register, or use interrupts).

Read the results of the conversion from the A/D data registers -- high byte before low byte (base + 86H before base + 87H). After the low byte is read, a new conversion will automatically be initiated on the next

channel (previous channel + 1).

3-17

XVME-500/590 Manual February, 1988

3.4.1.3

Random Channel Selection

In the random-channel mode: A control byte written to the gain/channel register

which specifies a channel number and sets bit D5 to logic ‘0’ -- will auto-

matically start a conversion on the specified channel. Procedure

Write a control byte to the status/control register that sets bit D5 to logic ‘0’, and bit D6 to logic ‘1’.

Select the desired channel and initiate the conversion by writing the channel number to bits D0 thru D4, and logic ‘0’ to bit D5 of the gain/channel register. Assuming that the corresponding Gain RAM was properly initialized (programmed) after power-up, this action will initiate a conversion with the correct gain on a specified channel. A conversion may also be forced by using bit D7 of the status/control register.

The result of the conversion can be read from the A/D data registers (base =86H -

87H) in either the byte or word format. In the random-

channel mode, the data resulting from a conversion will remain in the

A/D registers until another conversion is initiated.

3.4.1.4

External Trigger Conversion Mode

To access the external-trigger mode, jumper

J17

must be installed and jumper

J21D

must be removed. This allows the rising edge of a low-going, externally triggered

pulse (on pin 50 of JKl or pin

P2C-25

on P2 of XVME-590) -- referenced to logic

ground (pin 49 of JKl or pin

P2A-25

on P2 of XVME-590) -- to initiate a

conversion. Figure 3-6 shows the timing constraints.

3-18

XVME-500/590 Manual February, 1988

Rising edge

triggers

100 nsec.

minimum

conversion

Figure 3-6. External Trigger Pulse

Procedure

Be sure proper jumper alignments are in place. Connect the externaltrigger source to pin 50 of connector

JKl,

and

trigger source-return to pin 49 of connector JKI.

connect the external-

Write a control byte to the status/control register (base +

81H)

that sets

bits D5 and D6 to logic ‘1’.

Select the desired channel by writing the channel number to bits D0 thru D4 of the gain/channel register. Assuming that the Gain RAM was properly initialized (programmed) after power-up, it will not be necessary to rewrite the gain at this time (unless a gain change is required).

The selected channel will initiate a conversion on the rising edge of the external trigger. The conversion results are read from the A/D data

registers. The next conversion will not take place until the next rising edge of the external trigger, or until a new conversion is forced on the channel via bit D7 of the status/control register.

3-19

XVME-500/590 Manual

February, 1988

NOTE

A software reset (see Section 3.3.1.1) will reset the flip-flop used to latch the external-trigger pulse, and abort any conversion in progress.

If an external trigger occurs while the module is in any mode other than the external-trigger mode, the trigger signal will be latched and a conversion will occur as soon as the external-trigger mode is entered.

3.4.2

Interrupts

The analog input portion of the module can generate an interrupt to notify the host that the A/D conversion is complete and the results are available.

The level and

vector generated by this interrupt are both user-selectable. The following three steps must be performed in order to generate an interrupt:

Interrupt level select jumpers must be configured to enable the module

IACK* handling circuitry (see Section 2.5.3).

The Interrupt Vector Register (location base + 83H) must be loaded with

the required vector.

This vector register will be read by the interrupt

handler when the interrupt is acknowledged.

Interrupts must be enabled via bit D2 in the’status/control register (see Section 3.3.1.1).

At the completion of a conversion, an interrupt will be generated.

3.4.3

Current Loop Inputs

An A/D input will operate in a 4-20mA or 10-50mA current loop configuration with the addition of an external current sensing resistor. The current sensing resistor should be selected to generate a voltage within the predetermined, jumper-selected voltage range

(0-10V

max.). A voltage drop of less than IV will provide current of

less than 4mA, and would thus indicate improper operation of the current loop. Typically, the resistors used would be:

A 500-ohm

1/2W

for the 4-20mA configuration,

A 200-ohm

1/2W

for the l0-50mA configuration.

3-20

XVME-500/590 Manual February, 1988

The resistors should be

0.l%

tolerance or better, with stable temperature coefficient characteristics (e.g., 25ppm or better). All input channels operate with the same full scale input range.

3-21

XVME-500/590 Manual February, 1988

Chapter 4

INPUT CALIBRATION

4.1 INTRODUCTION

Calibration facilities have been provided on the XVME-500/590 Analog Input Module for the analog input circuits. It is recommended that any time the module is reconfigured (i.e. gain jumpers are changed, or new inputs are added etc.) that the calibration should be checked and adjusted if necessary.

The calibration procedure entails offset and gain adjustment for the input channels in either the unipolar or the bipolar modes of operation. Table 4-l provides a list of the potentiometers and their applications for the input circuit calibration. Relative locations of the calibration potentiometers can be found in Figure 2-1 (XVME-500) or Figure 2-2

(XVME-590).

Table 4-1. A/D Calibration Potentiometers

Resistor

R2 R8 R9

R17 Rll R13

Description

ADC unipolar offset adjust ADC bipolar offset adjust ADC gain adjust Input offset adjust Prog. Gain (version 2 and 3 only) Input Offset for Resis. Prog. Gain (version 1 only) Gain Adjust for Resis. Prog. Gain (version 1 only)

INPUT CALIBRATION PROCEDURE

4.2.1

Equipment Required

The following equipment is required to perform input calibration:

A 5-digit volt meter capable of reading

+3OuV.

A small flat-bladed screw driver.

A precision voltage source, capable of supplying

+lOV

with a minimum

resolution of:

1.22mV.

The inputs can be calibrated in either the single-ended or differential configuration. Calibration begins by offset nulling the instrumentation amplifier (either fixed gain

or programmable depending upon the version of the module) with channel 0 selected and its inputs grounded.

4-l

XVME-500/590 Manual February, 1988

4.2.2 Programmable Gain Offset Adjustment (version 2 & 3)

The following adjustments must be made for the input and output stage of the programmable gain instrumentation amplifier:

Remove any connections at JKl Set potentiometer R17 to center position. If the module is configured for

differential mode insert jumpers

J23

and 24, if the module is in the

single-ended mode insert just jumper

J23,

and if the module is configured

for Pseudo-differential mode insert jumpers

J23

and J17.

Set input to address the first channel (CH0). Insert jumpers J15, and

J19,

and set the input stage gain to 1 (by setting

bits D6 and D7 of the Gain/Channel register to logic

“0”).

Measure and

record the amplifier output voltage

(V,

) at TP2 (TPl is ground).

Set the input stage gain to 10 (by setting bits D6 and D7 of the Gain/Channel register to logic

“1”).

Measure and record the output

voltage (V, ) at TP2.

Calculate the voltage offset with the following formula:

Voltage Offset (Voos) =

[(10 * v-1

While maintaining an input stage gain of 10, adjust the input offset voltage potentiometer (R17) until the output at TP2 is equal to Voos

(+3OuV).

Reset gain range jumpers to the desired range (see Table 2-6). Remove grounding jumpers (J23 & J24).

4.2.3

Fixed Gain Offset Adjustment (version 1)

The following adjustments must be made to the input and output stages of the fixed

gain instrumentation amplifier (version 1 only):

Remove any connections at JKl

If the module is configured for differential mode insert jumpers

J23

and 24, if the module is in the single-ended mode insert just jumper J23, and if the module is configured for Pseudo-differential mode insert jumpers

J23

and J17.

4-2

XVME-500/590 Manual February, 1988

Appendix A

INSTALLING AN XVME-910 CHANNEL EXPANSION KIT

(Optional)

A.1 INSTALLATION

The number of analog inputs on the XVME-500/590 can be expanded from 16 singleended/8 differential to 32 single-ended/l6 differential by installing an XVME-910 Channel Expansion Kit. The kit consists of two additional 8 input analog

multi-

plexers. Installation is simply a matter of positioning the two integrated circuits on

the board in locations

U19

and U23, and soldering them in place (see Appendix C,

the assembly drawing for the locations of these

IC’s).

NOTE

Static precautions should be taken when handling the

chips, and a low-wattage soldering iron (30 watts or less) should be used.

Care should be taken to make sure pin 1 on the chip is aligned correctly.

A-l

XVME-500/590 Manual February, 1988

Appendix B

* VMEbus CONNECTOR/PIN DESCRIPTION

The XVME-500 and XVME-590 Modules are VMEbus compatible boards. There is one 96-pin bus connector on the rear edge of the board labeled Pl (refer to Chapter 2, Figure

2-1

for the location) and the XVME-590 also uses the P2 connector. The signals carried by connector PI are the standard address, data, and control signals required for a PI backplane interface, as defined by the VMEbus specification. Table B-l identifies and defines the signals carried by the Pl connector. Table B-3 shows the pin-outs for the P2 connector.

Table B-l. Pl - VMEbus Signal Identification

Signal Mnemonic

ACFAIL*

IACKIN*

IACKOUT*

AMO-AM5

AS*

Connector

and

Pin Number

lB:3

IA:21

1A:22

1A:23 lB:16,17,

18,19

lC:14

lA:18

Signal Name and Description

AC FAILURE: Open-collectors driven signal which indicates that the AC input to the power supply is no longer being provided, or that the required input voltage levels are not being met.

INTERRUPT ACKNOWLEDGE IN: Totem-pole driven signal. IACKIN* and IACKOUT* signals form a daisychained acknowledge. The IACKIN* signal indicates to the VME board that an acknowledge cycle is in progress.

INTERRUPT ACKNOWLEDGE OUT: Totem-pole driven signal. IACKIN* and IACKOUT* signals form a daisychained acknowledge. The IACKOUT* signal indicates to the next board that an acknowledge cycle is in progress.

ADDRESS MODIFIER (bits O-5): Three-state driven lines that provide additional information about the address bus, such as: size, cycle type, and/or DTB master identification.

ADDRESS STROBE: Three-state driven signal that indicates a valid address is on the address bus.

B-l

XVME-500/590 Manual February, 1988

Table B-l. VMEbus Signal Identification (cont’d)

Signal

Mnemonic

A0l-A23

A24-A3 1

BBSY*

BCLR*

BERR*

BG0IN*BG3IN*

BG0OUT*BG3OUT*

Connector

and

Pin Number

A:24-30

lC:15-30

2B:4-11

1B:l

lB:2

1C:ll

B:4,6,

8,l0

B:5,7,

9,ll

Signal Name and Description

ADDRESS BUS (bits 1-23): Three-state driven address

lines that specify a memory address. ADDRESS BUS (bits 24-31): Three-state driven bus

expansion address lines. BUS BUSY: Open-collector driven signal generated by

the current DTB master to indicate that it is using the

bus. BUS CLEAR: Totem-pole driven signal generated by the

bus arbitrator to request release by the DTB master if a higher level is requesting the bus.

BUS ERROR: Open-collector driven signal generated by a slave. It indicates that an unrecoverable error has occurred and the bus cycle must be aborted.

BUS GRANT (0-3) IN: Totem-pole driven signals generated by the Arbiter or Requesters. Bus Grant In and Out signals form a daisy-chained bus grant.

The

Bus Grant In signal indicates to this board that it may

become the next bus master. BUS GRANT (0-3) OUT: Totem-pole driven signals

generated by Requesters.

These signals indicate that a DTB master in the daisy-chain requires access to the bus.

B-2

XVME-500/590 Manual February, 1988

Signal

Mnemonic

BR0*-BR3*

DSO*

DSl*

DTACK*

D00-D15

GND

Table B-l. VMEbus Signal Identification (cont’d)

Connector

and

Pin Number

lB:12-15

lA:13

lA:12

lA:16

IA:1-8 lC:l-8

lA:9,11,

15,17,19,

B:20,23,

lC:9

2B:2,12,

22,31

Signal Name and Description

BUS REQUEST (0-3): Open-collector driven signals

generated by Requesters. These signals indicate that a

DTB master in the daisy-chain requires access to the bus.

DATA STROBE 0: Three-state driven signal that indicates during byte and word transfers that a data

transfer will occur on data buss lines (D00-D07). DATA STROBE 1: Three-state driven signal that

indicates during byte and word transfers that a data transfer will occur on data bus lines

(D0-D1

5).

DATA TRANSFER ACKNOWLEDGE: Open-collector driven signal generated by a DTB slave. The falling edge of this signal indicates that valid data is available

on the data bus during a read cycle, or that data has been accepted from the data bus during a write cycle.

DATA BUS (bits 0-15): Three-state driven, bi-

directional data lines that provide a data path between the DTB master and slave.

GROUND

B-3

XVME-500/590 Manual February, 1988

Signal Mnemonic

IACK*

IRQl*IRQ7*

LWORD*

(RESERVED)

SERCLK

SERDAT

SYSCLK

Table B-l. VMEbus Signal Identification (cont’d)

Connector

and

Pin Number

1 A:20

1 B:24-30

lC:l3

2B:3

lB:21

1 B:22

lA:10

Signal Name and Description

INTERRUPT ACKNOWLEDGE: Open-collector or threestate driven signal from any master processing an interrupt request. It is routed via the backplane to slot 1, where it is looped-back to become slot 1 IACKIN* in order to start the interrupt acknowledge daisy-chain.

INTERRUPT REQUEST (l-7): Open-collector driven

signals, generated by an interrupter, which carry

prioritized interrupt requests. Level seven is the highest priority.

LONGWORD: Three-state driven signal indicates that the current transfer is a 32-bit transfer.

RESERVED: Signal line reserved for future VMEbus

enhancements. This line must not be used. A reserved signal which will be used as the clock for a

serial communication bus protocol which is still being finalized.

A reserved signal which will be used as the transmission line for serial communication bus messages.

SYSTEM CLOCK: A constant

16-MHz

clock signal that

is independent from processor speed or timing. It is

used for general system timing use.

B-4

XVME-500/590 Manual February, 1988

Table B-l. VMEbus Signal Identification (cont’d)

Signal Mnemonic

Connector

and

Pin Number Signal Name and Description

SYSFAIL*

1C:lO

SYSTEM FAIL: Open-collector driven signal that

indicates that a failure has occurred in the system. It may be generated by any module on the VMEbus.

SYSRESET*

lC:12 SYSTEM RESET: Open-collector driven signal which,

when low, will cause the system to be reset.

WRITE* lA:14 WRITE: Three-state driven signal that specifies the

data transfer cycle in progress to be either read or written.

A high level indicates a read operation, a low

level indicates a write operation.

+5V

STDBY lB:31

VDC STANDBY: This line supplies +5 VDC to devices

requiring battery backup.

+5v lA:32

B:32

C:32

2B:1,13,32

VDC POWER: Used by system logic circuits.

+12v

-12v

lC:31 +I2 VDC POWER: Used by system logic circuits.

lA:31 .-12 VDC POWER: Used by system logic circuits.

B-5

XVME-500/590 Manual February, 1988

BACKPLANE CONNECTOR Pl

The following table lists the Pl pin assignments by pin number order. (The connector consists of three rows of pins labeled rows A, B, and C.)

Table B-2. Pl Pin Assignments

Number

2 3 4

5 6

10 11

18 19

20 21 22

23 24 25 26

Row A Row B Signal Signal Mnemonic Mnemonic

D00 BBSY

DO1

BCLR*

DO2

ACFAIL*

DO3

BG0IN*

DO4 BGOOUT* DO5

BGlIN*

DO6

BGlOUT*

DO7

BG2IN* GND BG20UT* SYSCLK BG3IN* GND BG30UT* DSl*

BRO*

DSO*

BRl* WRITE* BR2* GND

BR3* DTACK*

AM0

GND ’ AM1

AM2 GND

AM3

IACK* GND

IACKIN* IACKOUT*

SERCLK( 1)

SERDAT( 1)

AM4 GND

A07 IRQ7* A06

IRQ6*

A05

IRQ5*

A04

IRQ4*

A03

IRQ3* A02 IRQ2* A01 IRQl*

-12v +5V STDBY +5v +5v

Row C Signal Mnemonic

DO8 D09

Dl0 Dll

D12 D13 D14 D15 GND SYSFAIL*

BERR*

SYSRESET*

LWORD*

AM5 A23

A22 A21

A20 A19

Al8

Al7 Al6

Al5

A14

Al3 A12 All

A10 A09 A08 +12v

+5v

B-6

XVME-500/590

Manual

February, 1988

Table B-3. Pin Assignment for P2 (XVME-590 Only)

ROW A ROW B

ROW C

Pin # Signal Pin

Signal Pin

Signal

P2A-

H4 OUT-I P2B-

vcc P2C-1

GND

P2A-2 TMR OUT-1 P2B2

GND P2C-2

H2 OUT-1

P2A-3 H2 IN-l NO CONNECT P2C-3

GND

P2A-4

IN-l NO CONNECT P2C-4 H3 IN-l

P2A-5 TMR IN-I

NO CONNECT P2C-5 GND

P2A-6 PB6-

NO CONNECT P2C-6 PB7-1

P2A-7

PB5-1 NO CONNECT P2C-7 GND

P2A-8 PB3-1

NO CONNECT P2C-8

PB4-1

P2A-9 PB2-1

NO CONNECT P2C-9 GND

P2A-10

PBO-1

NO CONNECT

P2C-10 PBI-1

P2A-11 PA7-1

NO CONNECT

P2C-11

GND

P2A-12 PA5-1 P2B-12

GND P2C-12 PA6-

1 P2A-13 PA401 P2B-13 vcc P2C-13 GND P2A-14 PA20I NO CONNECT P2C-14 PA3-1 P2A-15

PA1-1

NO CONNECT P2C-15 GND

P2A-16 GND NO CONNECT P2C-16

PAO- 1

P2A-17 H4 OUT-2 NO CONNECT P2C-17

GND

P2A-18

TMR OUT-2 NO CONNECT

P2C-18

H2 OUT-2 P2A-19 H2 IN-2 NO CONNECT P2C-19 GND P2A-20

IN-2 NO CONNECT P2C-20 H3 IN-2

P2A-2

TMR IN-2 NO CONNECT P2C-2

GND P2A-22 PB6-2 P2B-22 1 GND P2C-22 PB7-2 P2A-23 PB5-2 NO CONNECT P2C-23 GND P2A-24 PB3-2

NO CONNECT P2C-24 PB4-2

P2A-25 PB2-2

NO CONNECT

P2C-25

GND

P2A-26 PBO-2

NO CONNECT P2C-26

PBl-2

P2A-27 PA7-2

NO CONNECT

P2C-27

GND

P2A-28 PA5-2 NO CONNECT P2C-28 PA6-2 P2A-29 PA4-2 NO CONNECT P2C-29 GND P2A-30 PA2-2 NO CONNECT P2C-30 PA3-2 P2A-3

PAl-2

P2B-3 1

GND P2C-3 1

GND

P2A-32 GND P2B-32

vcc P2C-32 PAO-2

B-7

XVME-500/590 Manual February, 1988

Appendix C

QUICK REFERENCE GUIDE

Table C-l. XVME-500/590 Jumpers

VMEbus OPTIONS Jumpers

Jl0,Jll,J12

J26,J27,J28,J29

J30,J31

J13

Use

Interrupt level select for any interrupts generated by

the module (See Section 2.5.3)

Module base address select jumpers

(refer to

Section 2.5.1) This jumper allows module to respond to supervisory

access only (when installed) or to both supervisory

and non-privileged access (when removed; See 2.5.2) Analog-to-Digital Conversion OPTIONS Jumpers

JlA,JlB,J4A,J4B

J2A

J2B

J6,J8,J9

J14,J15,J16,J18, J19,520

Use These jumpers provide the option of converting

analog inputs to either a two’s complement, straight binary or offset binary format (See Section 2.6.1)

Selects 12-bit conversions for analog-to-digital converter (See Section 2.6.4.4)

Selects 8-bit conversions for analog-to-digital converter (See Section

2.6.4.4)

These jumpers are used to configure inputs for either bipolar or unipolar input voltages and ranges (See Section 2.6.3)

Selects fixed-gain amplification factor on version 1 ONLY (Section 2.6.4.2)

Used only for modifying version 1 for resistor programmable gain (Section 2.6.4.3)

This jumper configuration controls gain ranges for programmable gain amplifier (versions 2 & 3) (See Section 2.6.4.1)

C-l

XVME-500/590 Manual

February, 1988

Table C-l. XVME-500/590 Jumpers (Cont’d)

J17

This jumper is installed to provide ground reference for external trigger (521 must be removed if this option is used; See Section 2.6.4.5)

J21A,J21B,J21C,J21D, J25

These jumpers are used together to determine if the inputs will be configured as either 8 differential,

16 single-ended or 16 pseudo-differential input

channels (Section 2.6.2)

J22A,J22B,J22C, J22D

J23,J24

Each jumper is used to determine settling times for the appropriate module amplifier (Section 3.4.1)

These two jumpers are provided to allow grounding of an input channel in either the single-ended or the differential input mode of operation for purposes of calibration (See Section 2.6.5)

J32

(XVME-590 Only)

Connects Analog to Digital GND.

J32

is in

foil and can be cut if the user desires.

C-2

XVME-500/590

Manual

February, 1988

Table

C-3.

Input Connector

JKl

Flat Cable

Single-Ended

Conductor

Configuration

Differential Configuration

CH. 0

CH. 0 LO

CH. 8 CH. 0 HI

ANALOG

GND

ANALOG

GND

CH. 9 CH.

CH.

ANALOG

GND

ANALOG

GND

CH. 2 CH. 2 LO 8 CH. 10 CH. 2 HI 9

ANALOG

GND

ANALOG

GND

CH.

CH. 3 CH. 3 LO 12

ANALOG

GND

ANALOG

GND

13 CH.

CH.

4 LO

14 CH. 12

CH.

ANALOG

GND

ANALOG

GND

CH. 13 CH. 5 HI 17

CH. 5 CH. 5 LO 18

ANALOG

GND

ANALOG

GND

CH. 6 CH. 6 LO

CH. 14 CH. 6 HI

ANALOG

GND

ANALOG

GND

CH. 15 CH. 7 HI

CH. 7 CH.

7 LO

ANALOG

GND

ANALOG

GND

CH.

16’

CH. 8 LO*

CH.

24*

CH. 8

HI*

ANALOG

GND

ANALOG

GND

CH.

25”

CH. 9

HI*

CH.

17*

CH. 9 LO*

30 ANALOG

GND

ANALOG

GND

CH. 18” CH. 10 LO*

CH.

26”

CH.

HI*

33 ANALOG

GND

ANALOG

GND

CH.

27”

CH.

HI*

CH. 19” CH.

LO*

36 ANALOG

GND

ANALOG

GND

CH.

20”

CH. 12 LO*

CH.

28”

CH.

HI*

Those

channels

marked by (*) are

only

available

expansion

kit is

installed.

after

XVME-910

channel

C-4

XVME-500/590 Manual February, 1988

Table C-3. Input Connector

JKl

(cont’d)

Flat Cable

Single-Ended

Conductor

Configuration

Differential Configuration

39 ANALOG GND ANALOG GND 40 CH. 29” CH. 13 HI* 41

CH. 21” CH. 13 LO* 42 ANALOG GND ANALOG GND 43 CH. 22* CH. 14

LO*

CH. 30* CH. 14 HI* 45 ANALOG GND ANALOG GND 46 CH. 31* CH. 15 HI* 47

CH. 23* CH. 15 LO* 48 ANALOG GND ANALOG GND 49 POWER GND/PD GND POWER GND/PD GND 50 EXT TRIGGER EXT TRIGGER

Those channels marked by

(*)

are only available after an XVME-910 channel

expansion kit is installed.

C-5

XVME-500/590 Manual February, 1988

Flat Cable Conductor

1 2 3 4 5 6 7 8 9

Table C-4.

P2’s - JKl

Compatibility Pin-out

Single-Ended Configuration

CH. 0 CH. 8

ANALOG GND

CH. 9 CH. 1

ANALOG GND

CH. 2 CH.

ANALOG GND

CH. 11 CH. 3

ANALOG GND

CH. 4 CH. 12

ANALOG GND

CH. 13 CH.

ANALOG GND

CH. 6 CH. 14

ANALOG GND

CH. 15 CH. 7

ANALOG GND

CH. 16 CH. 24

ANALOG GND

CH. 25 CH. 17

ANALOG GND

CH. 18 CH. 26

ANALOG GND

CH. 27 CH. 19

ANALOG GND

CH. 20 CH. 28

ANALOG GND

CH. 29 CH. 21

ANALOG GND

CH. 22 CH. 30

ANALOG GND

Differential Configuration

Connector

CH. 0 LO Cl CH. 0 HI Al

ANALOG GND C2

CH. 1 HI A2 CH. 1 LO C3

ANALOG GND

A3 CH. 2 LO C4 CH. 2 HI A4

ANALOG GND

C5 CH. 3 HI A5 CH. 3 LO

ANALOG GND A6

CH. 4 LO C7 CH. 4 HI A7

ANALOG GND

C8 CH. 5 HI A8 CH. 5 LO

ANALOG GND A9

CH. 6 LO Cl0

CH. 6 HI A10

ANALOG GND

Cl1

CH. 7 HI All CH. 7 LO Cl2

ANALOG GND Al2

CH. 8 LO Cl3 CH. 8 HI Al3

ANALOG GND Cl4

CH. 9 HI Al4 CH. 9 LO Cl5

ANALOG GND

Al5

CH. 10 LO

Cl6

CH. 10 HI Al6

ANALOG GND Cl7

CH. 11 HI Al7 CH. 11 LO Cl8

ANALOG GND Al8

CH. 12 LO Cl9 CH. 12 HI A19

ANALOG GND

C20 CH. 13 HI A20 CH. 13 LO C21

ANALOG GND A21

CH. 14 LO C22 CH. 14 HI A22

ANALOG GND

C23

XVME-500/590 Manual February, 1988

Table C-4.

P2’s -

JKl Compatibility Pin-out (Cont’d)

Flat Cable Single-Ended Differential

Conductor Configuration Configuration Connector

46 CH. 31

CH. 15 HI

A23

47 CH. 23

CH. 15 LO

C24

ANALOG GND ANALOG GND

A24

POWER GND/PD GND POWER GND/PD GND C25

EXT TRIGGER EXT TRIGGER

A25

Jumper JlA

JlB J2A J2B J3A J3B

J4A J4B J5A J5B J6 J7 J8 J9 Jl0 Jll J12 J13

J14 J15 J16 J18 J19 J20 J17 J21A J21B J21C J21D J22A J22B J22C J22D

J23

Table C-5. XVME-500/590 Jumper List

Description

Analog-to-binary conversion with

J4A

Analog-to-two’s complement conversion with

J4B

Allows 12-bit resolution in ADC conversions

Allows 8-bit resolution in ADC conversions Voltage range selector to ADC; 0-l0V,

+5V

Voltage range selector to ADC; +lOV Analog-to-binary conversion with J1A Analog-to-two’s complement conversion with J1B Unipolar voltage range selector Bipolar voltage range selector Fixed gain selector (x1000) Resistor programmable gain selector Fixed gain selector (x100) Fixed gain selector (x10)

A3 interrupt level selector A2 interrupt level selector Al interrupt level selector IN = supervisory only; OUT = supervisory or non-privileged Programmable gain range selector; Range 2 (4, 8, 20, 40) Programmable gain range selector; Range 1 (1, 2, 5, 10) Programmable gain range selector; Range 3 (10, 20, 50, 100) Programmable gain range selector (accompanies J14) Programmable gain range selector (accompanies J15) Programmable gain range selector (accompanies J16) External trigger selector (remove J21A-D;do not use with PDI) Configures module for SE operation;accompanies

J25 &J21C

or D Configures module for DI operation Configures module for SE operation with

J21A & J25

Configures module for PDI operation with

J21A & J25

Determines settling time 24uSec for fixed gain

x100

Determines settling time

10uSec

for programmable gain amp Determines settling time 80uSec for fixed gain xl-100 Determines settling time

16uSec

(not used)

Ground allows auto drift control by software input calib.

c-7

XVME-500/590 Manual February, 1988

EVEN

ODD

Base + OOH 0lH

UNDEFINED

+‘EH--m------

7FH

+ 80H

---------

Status/Control Reg. 81H

+ 82H Interrupter/Vector Reg.

83H

----B--B-D,

+ 84H Gain/Channel Reg. 85H

+ 86H A/D High Byte

A/D Low Byte

87H

UNDEFINED

Figure C-2. XVME-500/590 Analog Input Module Memory Map

Table C-6. A/D Calibration Potentiometers

Resistor

R2 R8 R9 . R17 Rll R13

Description

C-9

Xycom XVME 590, XVME 500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual