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Industrial Electronic Engineers, Inc.

SIZE

A

CODE IDENT NO.

05464

S03805–06–0200

Van Nuys, California

SCALE     N/A

REV  C

SHEET  5

1.0

GENERAL INFORMAT ION

1.1

Introduction

This specification describes the serial interface Daystar Nova model 03805–06–0200, a 4–line supertwisted
liquid crystal display (LCD) with 20 characters per line.

Model Number Designation System

03805

06

0

2

0

0

Reflective STN LCD

4x20 Format

Reserved

1 = 

Parallel Data Input

 *

2 = Serial Data Input

0 = No Backlight

0 = Color N/A

*  Parallel standard, Serial optional

1.2

Application

Daystar Nova modules provide alphanumeric information which is easily readable in high ambient light or in
darkness with optional backlight.  The low power requirements of the modules make them suitable for portable
battery operated equipment.  The wide operating temperature range (–30° to +80°C) is ideal for most outdoor
applications.  The choice of a preferential viewing hemisphere is not necessary because of the excellent wide
angle viewing characteristics of the new Super Bi–refringent Effect (SBE) liquid crystal cell used in this display.

The serial data input model of the 03805–06 Daystar Nova display allows communication between a host
processor and the display by means of a serial RS–232C interface.  This provides the capability to
communicate over a longer distance than is possible with the parallel model.  The RS–232 interface is a two
wire communication link.

1.3

Standard Features

 

Serial data communication via RS–232C

 

Multiple baud rates: 1200, 2400, 4800, and 9600

 

Low power consumption

 

Wide temperature range

 

Built–in diagnostics

 

Down–loadable special characters

1.4

Description

The serial input Daystar Nova module includes an on–board CMOS microprocessor which translates serial
data into parallel data and provides other enhancements over the parallel model.  The serial data may be set by
a jumper to accommodate speeds of 1200, 2400, 4800, and 9600 baud.  Parity may also be set by jumper for
odd, even, or no parity.  The electrical interface is RS–232C compatible.

A 5 Volt nominal power supply is required for operation.  The unit operates from 4.50 Volts to 5.50 Volts.
The typical power requirement for the module is 120mW.

The module weighs 9.1 ounces (257.7 grams).

Содержание 03805-06-0200

Страница 1: ...HEET 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 REVISION STATUS PROJ NO 411 CONTRACT INDUSTRIAL ELECTRONIC ENGINEERS INC VAN NUYS CALIFORNIA DRAWN R January 3 19 93 SERIAL DATA INP...

Страница 2: ...M CG RAM 9 2 2 8 Parallel Serial Data Conversion Circuitry Timing Generator Circuitry 9 3 0 THEORY OF OPERATION 10 3 1 Serial Interface 10 3 2 Error Detection and Reporting 10 3 3 Power up Sequence 11...

Страница 3: ...Inc SIZE A CODE IDENT NO 05464 S03805 06 0200 Van Nuys California SCALE N A REV C SHEET 3 6 2 Non Operating 19 7 0 OPTICAL SPECIFICATIONS 19 7 1 Optical Characteristics 19 7 2 Viewing Angle Adjustment...

Страница 4: ...RAM and Character Patterns CG RAM Data 9 Figure 5 8 bit Serial Data Format 10 Figure 6 Default Configuration at Power up 11 Figure 7 Instruction Sequence 11 Figure 8 Data Sequence 11 Figure 9 Instruct...

Страница 5: ...Bi refringent Effect SBE liquid crystal cell used in this display The serial data input model of the 03805 06 Daystar Nova display allows communication between a host processor and the display by mea...

Страница 6: ...cted to the same 5 Volt supply as the display module RESET and TEST pull down to ground to activate the function All three inputs may be left open if not used The VBIAS test point is used at the facto...

Страница 7: ...eg1 Seg40 Com1 Com16 D 5 5 40 Figure 2 LCD Controller Block Diagram 2 2 1 Instruction Register IR The IR stores instruction codes such as display clear and cursor shift and address information of the...

Страница 8: ...M 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 Code...

Страница 9: ...aracter Patterns CG RAM Data NOTES 1 The CG RAM consists of 64 bytes Any bytes not used for character pattern information can be used for general purpose data RAM The 5 6 and 7 bits are never used for...

Страница 10: ...o parity and two stop bits Since two command characters and numerous data characters are 8 bits in length it is recommended to operate in 8 bit mode if the host has this capability Where this is not p...

Страница 11: ...Jumper defined per section 4 2 Parity bit present Parity checking enable Parity Odd or Even 7 or 8 data bits Multiplex rate of LCD Display clear YES Display ON OFF ON Cursor location Position 0 Cursor...

Страница 12: ...ets DD RAM address DD RAM data is sent or received after this is set 40 s Read Busy Flag and Address BF Reads Busy Flag BF and Address Counter 0 s Write Data to CG or DD RAM Writes data into CG RAM or...

Страница 13: ...Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03805 06 0200 Van Nuys California SCALE N A REV C SHEET 13 DL 0 4 bit operation BF 1 Operating internally BF 0 Can accept instruction Figure 9 Inst...

Страница 14: ...er 1 Instruction S 12h Subsequent Data Is Controller 1 Display Data 15h Subsequent Data Is Controller 2 Instruction S 16h Subsequent Data Is Controller 2 Display Data 17h Subsequent Data Down Loads Sp...

Страница 15: ...described in Paragraph 2 2 7 the user has these additional preformatted characters available Note that all down loaded character data is lost and must be reloaded after power has been removed To faci...

Страница 16: ...Industrial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03805 06 0200 Van Nuys California SCALE N A REV C SHEET 16 Figure 10 Down loadable Special Characters...

Страница 17: ...it settings 3 8 Diagnostics 1 The display module can be operated by the host in a HEX dump mode This diagnostic mode provides for the HEX display of all serial data received While operating in this mo...

Страница 18: ...B 1 1 E1 4800 Baud 1200 Baud 2 E2 2 x Baud 1 x Baud 3 E3 Parity No Parity 4 E4 Even Parity Odd Parity 5 E5 7 Data Bits 8 Data Bits 6 E6 1 8 Mpx N A 1 16 Mpx 7 Not Used 8 Not Used Baud rate will defaul...

Страница 19: ...e tRCC of the power supply is correct at turn on 1ms tRCC 10ms Figure 11 represents the requirements of the power supply Note that tOFF stipulates the minimum time that power can be OFF tOFF 1ms durin...

Страница 20: ...nsing 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 6 2 Non Operating Temperature 40 C to 85 C 7 0 OPTICAL SPECIFIC...

Страница 21: ...0 Figure 13 Definition of Vertical Viewing Angle Definition of Horizontal Viewing Angle top Viewing Display for Bottom Viewing Displays 20 Typically X X Y Y Normal 20 90 90 Figure 14 Definition of Hor...

Страница 22: ...ard potentiometer This is considered to be a nominal adjustment but the user may prefer to vary this to optimize the viewing for a particular application The bias voltage is measured between VCC pin 7...

Страница 23: ...ed that an air gap of at least 030 to 050 minimum be provided between the window material and the surface of the LCD to prevent the transfer of static charges to the front surface of the LCD Supertwis...

Страница 24: ...strial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03805 06 0200 Van Nuys California SCALE N A REV C SHEET 24 10 0 OUTLINE AND INSTALLATION CHARACTERISTICS Figure 17 03805 06 0200 Outline Dra...

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