IEE 03875-21-0214 Reference Manual

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APPLICATION
NEXT ASSY
FINAL ASSY
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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. 30144
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E.O. 36743, Revised and Redrawn
4 X 40 Daystar Nova LCD Module
Serial Data Input Option and Fiber Optic Backlight
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CONTRACT
R. January
DRAWN
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APPROVED
D. Goodale
9-29-94
APPROVED
DESCRIPTION
Specification
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Model 03875–21–0214
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REVISION STATUS
3–19–93
4 X 40 LCD MODULE WITH FIBER OPTIC BACKLIGHT
SIZE
CODE IDENT NO.
05464
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REVISIONS
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INDUSTRIAL ELECTRONIC ENGINEERS, INC.
VAN NUYS, CALIFORNIA
SERIAL DATA INPUT
S03875–21–0214
SHEET
DATE
APPROVED
10/6/94
D. Goodale
2/13/02
D. Goodale
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Summary of Contents for IEE 03875-21-0214

  • Page 1 APPLICATION REVISIONS NEXT ASSY FINAL ASSY DESCRIPTION DATE APPROVED – PRODUCTION RELEASE/E.O. 30144 10/6/94 D. Goodale E.O. 36743, Revised and Redrawn 2/13/02 D. Goodale Specification 4 X 40 Daystar Nova LCD Module with Serial Data Input Option and Fiber Optic Backlight Model 03875–21–0214 SHEET REVISION STATUS...
  • 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 ..................5 Module Block Diagram ........................5 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 ..........................19 OPTICAL SPECIFICATIONS ......................19 Optical Characteristics ........................19 Viewing Angle Adjustment......................21 FIBER OPTIC BACKLIGHT ......................22 FO Backlight Description .......................22 Lamp Characteristics........................22 Standard Operation........................23 INSTALLATION NOTE ........................23 10.0 ACCESSORIES..........................23 11.0 OUTLINE AND INSTALLATION CHARACTERISTICS ..............24 Industrial Electronic Engineers, Inc.
  • 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 ........................10...
  • Page 5: General Information

    GENERAL INFORMATION Introduction This specification describes the serial interface Daystar Nova model 03875–21–0214, a 4–line supertwisted liquid crystal display (LCD) with 40 characters per line. Model Number Designation System 03875 – – Transflective STN 4x40 Format Reserved 1 = +5 V 4 = White Parallel Data Input LCD w/EL Backlight...
  • Page 6: Signal Description

    preset the viewing angle. The LCD Controllers are microprocessor units (MPU) designed specifically to control all multiplexing and character decoding functions for the LCD display. Column Drivers Controller Cell Controller Microprocessor Column Drivers Reset Test Temperature Compensation BIAS View Angle Adjust BIAS Serial...
  • 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: Character Generator Rom (Cg Rom)

    Cursor or Display Shift instructions). 2.2.6 Character Generator ROM (CG ROM) The CG ROM generates character patterns of 5 X 7 dots from 8 bit character codes. The 192 5 X 7 dot matrix characters are illustrated in Figure 3. Figure 3 Correspondence Between Character Codes and Character Patterns Industrial Electronic Engineers, Inc.
  • Page 9: Character Generator Ram (Cg Ram)

    Note: Addresses 00h through 0Fh are reserved for CG RAM Addressing. Addresses 10h through 1Fh and 80h through 9Fh are not used. 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: Serial Interface

    Serial Interface The serial input module is a receive only device. Consequently, it is impossible for the host to read data or status from the LCD controller. This precludes reading of data from the Data Display (DD) RAM, Character Generator (CG) RAM, or address counter (AC). It is not necessary to read the controller busy flag because a large serial data input buffer prevents overflow at 9600 baud.
  • 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. S03875–21–0214 05464 Van Nuys, California SCALE REV A 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. S03875–21–0214 05464 Van Nuys, California SCALE REV A 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: Power-Up Supply Requirements

    5.2.1 Power–up Supply Requirements Initialization may or may not be performed completely unless the rise time (t ) of the power supply is correct at turn–on (1ms < t < 10ms). Figure 11 represents the requirements of the power supply. Note that t stipulates the minimum time that power can be OFF (t >...
  • Page 20: Environmental Characteristics

    ENVIRONMENTAL CHARACTERISTICS Operating Temperature: –30 to +80°C Humidity: (@ 40ºC) 95% RH (non–condensing) Humidity ( 40 C): Absolute humidity must be lower the humidity of 95% RH at 40 C Vibration: 10g at 10 to 400Hz (3 axes) Shock: 10g (all axes) Non–Operating Temperature: –40°C to +85°C...
  • Page 21 Normal = +90º –X = –90º –Y Figure 13 Definition of Vertical Viewing Angle 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...
  • Page 22: Viewing Angle Adjustment

    Brightness Curve for Selected Segment Brightness Curve for Non–selected Segment Setpoint Driving Voltage Figure 15 Definition of Contrast Ratio (CR) 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 23: Fiber Optic Backlight

    FIBER OPTIC BACKLIGHT FO Backlight Description The module contains a light emitting flat panel constructed of plastic optical fibers which convey the light from a separately located light source. The panel is heat free, has indefinitely long life and has good brightness uniformity.
  • Page 24: Installation Note

    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 25: Industrial Electronic Engineers, Inc. Size Code Ident No. S03875–21–0214 A

    11.0 OUTLINE AND INSTALLATION CHARACTERISTICS Figure 18 03875–21–0214 Outline Drawing Industrial Electronic Engineers, Inc. SIZE CODE IDENT NO. S03875–21–0214 05464 Van Nuys, California SCALE REV A SHEET 25...

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