Diamond Systems RUBY-MM-1612, 16-Channel 12-Bit Analog Output PC/104 Module Table of Contents

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TABLE OF CONTENTS

1.

DESCRIPTION

3

2.

I/O HEADER PINOUT

4

3.

BOARD CONFIGURATION

5

4.

ANALOG OUTPUT RANGE CONFIGURATION

6

5.

RUBY-MM-1612 BOARD DRAWING

8

6.

I/O MAP

9

7.

REGISTER DEFINITIONS

10

8.

82C55 DIGITAL I/O CHIP OPERATION

12

9.

ANALOG OUTPUT RANGES AND RESOLUTION

13

10.

D/A CODE COMPUTATION

14

11.

HOW TO GENERATE AN ANALOG OUTPUT

16

12.

CALIBRATION PROCEDURE

18

13.

SPECIFICATIONS

19

Copyright 2001 Diamond Systems Corp.

Ruby-MM-1612 User Manual V1.1 P. 2

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Contents
RUBY-MM-1612 Table of Contents Description Signal Name Definition O Header PinoutBase Address Board ConfigurationBase Address Configuration Header J5 Position Hex Decimal On-Board Reference Full-Scale Voltage Selection Analog Output Range ConfigurationAdjustable Reference Voltage Full-Scale VoltageAnalog Output Configuration Header J4 Range RUBY-MM-1612 Board Drawing Base + Write Function Read Function Reset informationRuby-MM-1612 I/O Map Base + 0, Write DAC LSB register Base + 0 or 1, Read Update DACsRegister Definitions Base + 1, Write DAC MSB registerBase + 3, Write External trigger register 82C55 Register Map Configuration Register82C55 Digital I/O Chip Operation DefinitionsFull Scale Analog Output Ranges and ResolutionFull Scale 1LSB 10. D/A Code Computation Output Code Explanation Output Voltage for ±5V Range Offset Binary Coding for bipolar output rangesLSB = 1/2048 x Full-Scale Voltage To generate an analog output on one or more channels HOW to Generate AN Analog OutputHardware Update Command Examples Single channel output Two channel outputCalibration Procedure Specifications MiscellaneousDescription FeaturesOrdering Information PinoutsFunctional Diagram 82C55A Pin DescriptionRead/Write and Control Logic 82C55A Functional DescriptionData Bus Buffer Group a and Group B ControlsOperational Description Mode Selection82C55A Ports A, B, and CInterrupt Control Functions Single Bit Set/Reset Feature FigureOperating Modes Inte Flip-Flop DefinitionMode 0 Configurations Mode 0 Basic InputMode 0 Basic Output Control Word #4 Control Word #8 IBF Input Buffer Full F/F Input Control Signal DefinitionSTB Strobe Input Output Control Signal Definition Intr Interrupt RequestOutput Operations Mode 2 Strobed Bi-Directional Bus I/OBi-Directional Bus I/O Control Signal Definition Input OperationsMode Control Word Mode 2 Combinations Special Mode Combination Considerations Current Drive CapabilityApplications of the 82C55A Reading Port C Status Figures 15