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IEE 03858-06-0205 Reference Manual

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APPLICATION
NEXT ASSY
FINAL ASSY
REV
C
C
SHEET
25
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28
REV
C
C
C
SHEET
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PROJ. NO.
411
NOTICE IS HEREBY GIVEN THAT THIS DRAWING IS PART
OF A PROPRIETARY ITEM OWNED BY INDUSTRIAL
ELECTRONIC ENGINEERS, INC. AND SHALL NOT BE
REPRODUCED, OR COPIED OR USED AS THE BASIS FOR
MANUFACTURE OR SALE OF APPARATUS WITHOUT
WRITTEN PERMISSION OF I.E.E. INC.
LTR
–
PRODUCTION RELEASE/E.O. 29204
A
E.O. 29436
B
E.O. 29541
C
E.O. 36743, Revised and Redrawn
4 X 20 Daystar Nova LCD Module
Serial Data Input Option and EL Backlight
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CONTRACT
R. January
DRAWN
CHECK
APPROVED
D. Goodale
3-9-93
APPROVED
DESCRIPTION
Specification
with
Model 03858–06–0205
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REVISION STATUS
3–19–93
4 X 20 LCD MODULE WITH EL BACKLIGHT
SIZE
CODE IDENT NO.
05464
A
SCALE
REVISIONS
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INDUSTRIAL ELECTRONIC ENGINEERS, INC.
VAN NUYS, CALIFORNIA
SERIAL DATA INPUT
S03858–06–0205
SHEET
DATE
APPROVED
3/9/93
D. Goodale
6/3/93
D. Goodale
6/28/93
D. Goodale
2/13/02
D. Goodale
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Summary of Contents for IEE 03858-06-0205

  • Page 1 APPLICATION REVISIONS NEXT ASSY FINAL ASSY DESCRIPTION DATE APPROVED – PRODUCTION RELEASE/E.O. 29204 3/9/93 D. Goodale E.O. 29436 6/3/93 D. Goodale E.O. 29541 6/28/93 D. Goodale E.O. 36743, Revised and Redrawn 2/13/02 D. Goodale Specification 4 X 20 Daystar Nova LCD Module with Serial Data Input Option and EL Backlight Model 03858–06–0205...

  • Page 2: Table Of Contents

    Table of Contents Paragraph Title Page GENERAL INFORMATION.......................5 Introduction............................5 Application ............................5 Standard Features ...........................5 Description ............................5 LOGICAL STRUCTURE AND FUNCTION ..................6 LCD Module............................6 2.1.1 Signal Description ..........................6 LCD Controller ..........................7 2.2.1 Instruction Register (IR) ........................7 2.2.2 Data Register (DR) ..........................7 2.2.3 Busy Flag ............................7 2.2.4...
  • Page 3 Table of Contents Paragraph Title Page Non–Operating ..........................9 OPTICAL SPECIFICATIONS ......................9 Optical Characteristics ........................9 Viewing Angle Adjustment.......................9 EL BACKLIGHTING..........................9 EL Backlight Description........................9 Electrical Characteristics of EL Backlight..................9 Operation............................9 8.3.1 Normal Operation..........................9 8.3.2 Brightness, Voltage and Frequency Characteristics ...............9 8.3.3 Intermittent Operation........................9 8.3.4 Square Waveform Operation......................9 8.3.5...
  • Page 4 List of Figures Figure Title Page Figure 1 Module Block Diagram ........................6 Figure 2 LCD Controller Block Diagram ......................7 Figure 3 Correspondence Between Character Codes and Character Patterns ...........8 Figure 4 Relationship Between CG RAM Address, Character Codes (DD RAM) and Character Patterns (CG RAM Data) ..........................9 Figure 5 8–bit Serial Data Format ........................9...

  • Page 5: General Information

    GENERAL INFORMATION Introduction This specification describes the serial interface Daystar Nova model 03858–06–0205, a 4–line supertwisted liquid crystal display (LCD) with 20 characters per line. Model Number Designation System 03858 – – Transflective STN 4x20 Format Reserved 0 = External 0 = Aviation Parallel Data Input LCD w/EL Backlight...

  • Page 6: Logical Structure And Function

    LOGICAL STRUCTURE AND FUNCTION LCD Module Figure 1 illustrates the major components of the serial option Daystar Nova module. The module provides means for an external viewing angle adjustment potentiometer (V Adj.) at Pin 4, and connections for optional BIAS RESET and self–test switches at Pins 3 and 5.

  • Page 7: Lcd Controller

    LCD Controller The LCD Controller includes all of the circuitry necessary to take parallel input data and create the necessary control functions and characters. The block diagram of the controller is shown in Figure 2 below. The remaining subparagraphs of Section 2 describe the major function blocks. Address Timing Generation Counter (AC)

  • Page 8: Display Data Ram (Dd Ram)

    Increment/Decrement bit (Refer to Entry Mode Set instruction). 2.2.5 Display Data RAM (DD RAM) The DD RAM contains 80 X 8 bits and represents 80 characters. The relationship between the DD RAM address and position of the characters in the display can be controlled by the user (Refer to Entry Mode Set and Cursor or Display Shift instructions).

  • Page 9: Character Generator Ram (Cg Ram)

    2.2.7 Character Generator RAM (CG RAM) The CG RAM allows the user to define 8 types of 5 X 7 character patterns. Figure 4 shows the relationship between CG RAM addresses and data patterns (Refer to Set CG RAM Address and Write to CG or DD RAM instructions).

  • Page 10: Theory Of Operation

    THEORY OF OPERAT ION The serial input option was designed to allow users to send data and control codes to the display module via the industry standard RS–232C serial interface. This follows the interface protocol of the parallel input Daystar Nova display modules with few exceptions.

  • Page 11: Power-Up Sequence

    Power–up Sequence Upon power–up, the serial Daystar Nova display module is automatically initialized to the format defined by the jumper settings and default values shown in Figure 6. The power–up sequence takes about 0.5 second. Baud rate: Jumper defined (per section 4.2) Parity bit present: "...

  • Page 12: Instruction Set

    Instruction Set Instruction Code Description Execution Time (Max) Clear Display Clears entire display and sets DD RAM to 0 1.64 ms Sets DD RAN counter to 0. If the display has been shifted, characters are returned to their initial Return Home 1.64 ms positions.
  • Page 13 DL=0: 4–bit operation BF=1: Operating internally BF=0: Can accept instruction Figure 9 Instruction Set Industrial Electronic Engineers, Inc. SIZE CODE IDENT NO. S03858–06–0205 05464 Van Nuys, California SCALE REV C SHEET 13...

  • Page 14: Instruction Summary

    3.5.1 Instruction Summary Hex Code Command Clear Display Home Cursor Disable Shift And Decrement Enable Shift And Decrement Disable Shift And Increment Enable Shift And Increment Turn Display Off Turn Display On And Cursor Off Turn Display On And Cursor On Turn Display On And Blink Cursor Shift Cursor To The Left Shift Cursor To The Right...

  • Page 15: Down-Loadable Special Characters

    Down–Loadable Special Characters An added feature of the serial input module is the inclusion of a group of 206 special characters stored in its memory. These supplement the character library of the LCD module and may be easily down loaded (up to eight at a time) into the CG RAM of the display module for use in one display frame of the display.
  • Page 16 Figure 10 Down–loadable Special Characters Industrial Electronic Engineers, Inc. SIZE CODE IDENT NO. S03858–06–0205 05464 Van Nuys, California SCALE REV C SHEET 16...

  • Page 17: Self-Test

    Self–test The serial input display module can be operated independently from the host by using the "Self–test" option. 1. Check the multiplex jumper for proper setting (Section 4.2). 2. Connect a +5V power supply and potentiometer as discussed in Paragraph 2.1 and Figure 1. 3.

  • Page 18: Interface And Control

    INTERFACE AND CONTROL Connector Assignment (P2) Pin No. Function P2–1 Data NOTE: The mating connector P2–2 Data RTN (Signal Ground) must be wired in a reverse pin P2–3 RESET sequence from its marking. (Pin P2–4 Adjust 11 is Pin 1 etc.) P2–5 Self–Test The mating connector is a Molex...

  • Page 19: Electrical Specifications

    ELECTRICAL SPECIFICATIONS Absolute Maximum Ratings Power Supply Voltage (V –0.3 to +6.5 V Serial Input Voltage: –25.0 to +25.0 V Normal Operating Ratings Power Supply Voltage (V +5.0 V ±10% Supply Current (+5 V 34 mA Max EL Current (+5 Volt Inverter) 100 mA 5.2.1 Power–up Supply Requirements Initialization may or may not be performed completely unless the rise time (t...

  • Page 20: Interface Signals

    Interface Signals 5.3.1 Serial Interface Signals The display is designed to be operated by a standard RS–232 serial interface. The user can operate the module with any interface which meets the following requirements for a "mark" condition and a "space" condition.
  • Page 21 OPTICAL SPECIFICATIONS Optical Characteristics Format: Four lines of 20 characters Character Font: 5x7 dot matrix with cursor Character Height w/ cursor: 0.48" (12.1mm) Character Height w/o cursor: 0.39" (9.9mm) Character Width: 0.24" (6.1mm) Overall Active Area: 5.70" x 2.34" (144.9mm x 59.5mm) Peak Vertical Viewing Angle: 20°...
  • Page 22 Optical Characteristics (Continued) Definition of Horizontal Viewing Angle–top Viewing Display (for Bottom Viewing Displays = –20° Typically) Normal = +20º – –X = –90º = +90º –Y Figure 14 Definition of Horizontal Viewing Angle Display contrast ratio is given by: Where: B = Brightness of selected segment = Brightness of non–selected segment...
  • Page 23 Optical Characteristics (Continued) Definition of optical response. 10% ON 90% ON Excitation Figure 16 Definition of Optical Response Viewing Angle Adjustment The factory preadjusts the viewing angle of the display by setting the LCD bias voltage to 10.2 Volts using the on–board potentiometer.
  • Page 24 Operation 8.3.1 Normal Operation The EL lamp is designed for typical operation at 90 Volts AC at 330 cycles. The light output of the lamp under these operating conditions is typically 12 ft–L. Since the LCD transmits approximately 8% of the light, the light output through the display is 1 ft–L.
  • Page 25 8.3.2 Brightness, Voltage and Frequency Characteristics (Continued) 25ºC, 115 VRMS, Aviation Green Frequency (Hertz) Figure 18 Initial Brightness vs. Frequency 8.3.3 Intermittent Operation The EL backlight is intended for intermittent usage only. Continuous operation will result in greatly reduced life of the lamp.
  • Page 26 It may take several minutes for such a surface static charge to dissipate. 10.0 ACCESSORIES Part Mfr. Part No. IEE Part No. Power/Data Connector, 11 Pin (Molex): 22–01–2117 45125–11 Connector Pins, (Molex, 11 required) 08–50–0114 45126–01...

  • Page 27: Industrial Electronic Engineers, Inc. Size Code Ident No. S03858–06–0205 A

    11.0 OUTLINE AND INSTALLATION CHARACTERISTICS Figure 20 03858–06–0205 Outline Drawing Industrial Electronic Engineers, Inc. SIZE CODE IDENT NO. S03858–06–0205 05464 Van Nuys, California SCALE REV C SHEET 27...

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