Diamond Systems RUBY-MM-1612 user manual O Header Pinout, Signal Name Definition

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2. I/O HEADER PINOUT

Ruby-MM-1612 provides a 50-pin right-angle header labeled J3 for all user I/O. This header is located on the right side of the board. Pins 1, 2, 49, and 50 are marked to aid in proper orientation. A standard 50-pin cable-mount IDC (insulation displacement contact) connector will mate with this header.

J3

(Top of board)

Agnd

1

2

Vout 0

Agnd

3

4

Vout 1

Agnd

5

6

Vout 2

Agnd

7

8

Vout 3

Agnd

9

10

Vout 4

Agnd

11

12

Vout 5

Agnd

13

14

Vout 6

Agnd

15

16

Vout 7

Vout 8

17

18

Vout 9

Vout 10

19

20

Vout 11

Vout 12

21

22

Vout 13

Vout 14

23

24

Vout 15

DIO A7

25

26

DIO A6

DIO A5

27

28

DIO A4

DIO A3

29

30

DIO A2

DIO A1

31

32

DIO A0

DIO B7

33

34

DIO B6

DIO B5

35

36

DIO B4

DIO B3

37

38

DIO B2

DIO B1

39

40

DIO B0

DIO C7

41

42

DIO C6

DIO C5

43

44

DIO C4

DIO C3

45

46

DIO C2

DIO C1

47

48

DIO C0 / Ext Trig

+5V

49

50

Dgnd

Signal Name

Definition

Vout15 - 0

Analog output channels

Agnd

Analog ground

DIO A7-0, B7-0, C7-0

Digital I/O lines (programmable direction)

Ext Trig

Digital I/O line C0 can be used as an external D/A update signal

+5V

Connected to PC/104 bus +5V power supply

Dgnd

Digital ground

⇒Note: The +5V and Dgnd lines do not need to be connected to a power supply to use this board. They are provided as connection points for convenience purposes only.

Copyright 2001 Diamond Systems Corp.

Ruby-MM-1612 User Manual V1.1 P. 4

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Contents
RUBY-MM-1612 Table of Contents Description Signal Name Definition O Header PinoutBase Address Configuration Header J5 Position Hex Decimal Board ConfigurationBase Address Analog Output Range Configuration Adjustable Reference VoltageOn-Board Reference Full-Scale Voltage Selection Full-Scale VoltageAnalog Output Configuration Header J4 Range RUBY-MM-1612 Board Drawing Ruby-MM-1612 I/O Map Reset informationBase + Write Function Read Function Base + 0 or 1, Read Update DACs Register DefinitionsBase + 0, Write DAC LSB register Base + 1, Write DAC MSB registerBase + 3, Write External trigger register Configuration Register 82C55 Digital I/O Chip Operation82C55 Register Map DefinitionsFull Scale 1LSB Analog Output Ranges and ResolutionFull Scale 10. D/A Code Computation LSB = 1/2048 x Full-Scale Voltage Offset Binary Coding for bipolar output rangesOutput Code Explanation Output Voltage for ±5V Range Hardware Update Command HOW to Generate AN Analog OutputTo generate an analog output on one or more channels Examples Single channel output Two channel outputCalibration Procedure Specifications MiscellaneousFeatures Ordering InformationDescription PinoutsFunctional Diagram 82C55A Pin Description82C55A Functional Description Data Bus BufferRead/Write and Control Logic Group a and Group B ControlsMode Selection 82C55AOperational Description Ports A, B, and CSingle Bit Set/Reset Feature Figure Operating ModesInterrupt Control Functions Inte Flip-Flop DefinitionMode 0 Basic Output Mode 0 Basic InputMode 0 Configurations Control Word #4 Control Word #8 STB Strobe Input Input Control Signal DefinitionIBF Input Buffer Full F/F Output Control Signal Definition Intr Interrupt RequestMode 2 Strobed Bi-Directional Bus I/O Bi-Directional Bus I/O Control Signal DefinitionOutput Operations Input OperationsMode Control Word Mode 2 Combinations Special Mode Combination Considerations Current Drive CapabilityApplications of the 82C55A Reading Port C Status Figures 15