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IEE 03875-21-0114, Reference Manual

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Table of Contents

Paragraph

Title

Page

Industrial Electronic Engineers, Inc.

SIZE

A

CODE IDENT NO.

05464

S03875–21–0114

Van Nuys, California

Scale:  NONE

Rev   A

Sheet  3

7.3 Standard Operation.....................................................................................................................................21

8.0

INSTALLATION NOTE ................................................................................................................................21

9.0

ACCESSORIES..........................................................................................................................................21

10.0

OUTLINE and installation characteristics ...................................................................................................22

Summary of Contents for 03875-21-0114

Page 1: ...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 PARALLEL DATA INPUT CHECK 4 X 40 LCD MODULE WIT...

Page 2: ...g Generator Circuitry 9 3 0 OPERATION 10 3 1 Instruction Set 10 3 2 Power Up Instructions Sequence 11 3 3 Instructions Affecting the Relationship of Display Position Cursor and DD RAM Address 11 3 4 I...

Page 3: ...ndustrial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03875 21 0114 Van Nuys California Scale NONE Rev A Sheet 3 7 3 Standard Operation 21 8 0 INSTALLATION NOTE 21 9 0 ACCESSORIES 21 10 0 OUT...

Page 4: ...Shift Left from Initial Conditions 11 Figure 8 Display Shift Right from Initial Conditions 12 Figure 9 Load Character with S 1 I D 0 from Initial Conditions 12 Figure 10 Load Character with S 1 I D 1...

Page 5: ...cessor controls the display multiplexing and character decoding The temperature compensation circuitry guarantees that the viewing characteristics are optimized for all temperatures The SBE liquid cry...

Page 6: ...w Drivers and Shift Registers LCD Column Drivers and Shift Registers LCD Display Temperature Compensation V CC 5V Gnd FO Backlight 8 Flying Leads Figure 1 Module Block Diagram 2 1 1 Signal Description...

Page 7: ...it Shift Register Seg1 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...

Page 8: ...NE Rev A Sheet 8 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 cha...

Page 9: ...lationship Between CG RAM Address Character Codes DD RAM and Character 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...

Page 10: ...L Moves cursor or shifts entire display one position DD RAM contents are unchanged 40 s Function Set 0 0 0 0 1 DL 1 0 Sets Interface Data Length 40 s Set CG RAM Address 0 0 0 1 Sets CG RAM address CG...

Page 11: ...3 Instructions Affecting the Relationship of Display Position Cursor and DD RAM Address The DD RAM contains the 8 bit character codes of the 40 characters displayed on the Daystar Nova LCD The Cursor...

Page 12: ...26 MPU1 67 40 41 42 43 44 45 46 47 48 49 61 62 63 64 65 66 00 01 02 03 04 05 06 07 08 09 0A 22 23 24 25 26 27 MPU2 40 41 42 43 44 45 46 47 48 49 4A 62 63 64 65 66 67 Cursor Last Character Entered Figu...

Page 13: ...o VCC 0 001 mA Supply Current logic ICC 12 20 mA Supply Current Backlight IBL VBL 5 5 VDC 1 0 A 4 4 Timing Characteristics Write Operation Refer to Figure 11 Item Symbol Min Max Unit Enable Cycle Time...

Page 14: ...Write Figure 12 Interface Timing Read Valid Data t t AS PWEH tAH tAH DSW t tH t VIL1 VIL1 VIL1 VIL1 VIL1 VIL1 VIL1 V IH1 V IH1 VIH1 VIH1 V IH1 VIL1 RS R W E DB 0 7 DB cyc t t t t t t tEf t t t t t t E...

Page 15: ...for 4 Bit Parallel Interface Figure 14 illustrates the typical Busy Flag check sequence for a 4 bit data bus interface Figure 14 Busy Flag Check Sequence for 4 bit Parallel Interface Note IR7 IR3 Inst...

Page 16: ...Ground 11 DB0 12 Ground 13 DB1 14 Ground 15 DB2 16 Ground 17 DB3 18 Ground 19 DB4 20 Ground 21 DB5 22 VCC 5VDC Parallel with Pin 24 23 DB6 24 VCC 5VDC Parallel with Pin 22 25 DB7 26 N C When the displ...

Page 17: ...tics Format Four lines of 40 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...

Page 18: ...90 Figure 15 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 16 Definition of Ho...

Page 19: ...rd 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 22...

Page 20: ...Because the attenuation of the LCD cell only 10 of the backlight luminance is emitted from the display Thus to provide a brightly lit display the original light source must be 10 times brighter 7 2 L...

Page 21: ...material It is also recommended 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 fron...

Page 22: ...trial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03875 21 0114 Van Nuys California Scale NONE Rev A Sheet 22 10 0 OUTLINE AND INSTALLATION CHARACTERISTICS Figure 20 03875 21 0114 Outline Dra...

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