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Industrial Electronic Engineers, Inc.

SIZE

A

CODE IDENT NO.

05464

S03875–06–0214

Van Nuys, California

SCALE     N/A

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
characters are illustrated in Figure 3.

Figure 3

Correspondence Between Character Codes and Character Patterns

Summary of Contents for 03875-06-0214

Page 1: ...A A A A A SHEET 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 SER...

Page 2: ...AM 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 3 4 T...

Page 3: ...N A REV A SHEET 3 6 2 Non Operating 16 7 0 OPTICAL SPECIFICATIONS 16 7 1 Optical Characteristics 16 7 2 Viewing Angle Adjustment 16 8 0 FIBER OPTIC BACKLIGHT 16 8 1 FO Backlight Description 16 8 2 La...

Page 4: ...terns 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 Instruction Set 12 Figure 10...

Page 5: ...uper Bi refringent Effect SBE liquid crystal cell used in this display The serial data input model of the 03875 06 Daystar Nova display allows communication between a host processor and the display by...

Page 6: ...upply 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 factory to preset the viewing...

Page 7: ...t 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 i...

Page 8: ...A 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 char...

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: ...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...

Page 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...

Page 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...

Page 13: ...Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03875 06 0214 Van Nuys California SCALE N A REV A SHEET 13 DL 0 4 bit operation BF 1 Operating internally BF 0 Can accept instruction Figure 9 Inst...

Page 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...

Page 15: ...as described in section 4 4 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 facili...

Page 16: ...Industrial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03875 06 0214 Van Nuys California SCALE N A REV A SHEET 16 Figure 10 Down loadable Special Characters...

Page 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...

Page 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...

Page 19: ...unless the rise time 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...

Page 20: ...requirements for a mark condition and a space condition The user should observe generally accepted design rules when interfacing to the display Space Voltage VRX Data VRX Data RTN 3 0 to 25 0 Volts Ma...

Page 21: ...24 6 1mm Overall Active Area 5 70 x 2 34 144 9mm x 59 5mm Peak Vertical Viewing Angle 20 below normal plane Viewing Mode Transflective light field Item Symbol Condition Min Typ Max Unit Viewing Angle...

Page 22: ...iewing Display for Bottom Viewing Displays 20 Typically X X Y Y Normal 20 90 90 Figure 14 Definition of Horizontal Viewing Angle Display contrast ratio is given by CR B B 2 1 Where B1 Brightness of se...

Page 23: ...e the user may find that this external viewing control is unnecessary 8 0 FIBER OPTIC BACKLIGHT 8 1 FO Backlight Description The module contains a light emitting flat panel constructed of plastic opti...

Page 24: ...racteristics These sources all include a reflector as part of the lamp which focuses the light toward the polished end of the fiber bundle Rated life is expressed for operation at design voltage with...

Page 25: ...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 Supertwist LCD s may activa...

Page 26: ...strial Electronic Engineers Inc SIZE A CODE IDENT NO 05464 S03875 06 0214 Van Nuys California SCALE N A REV A SHEET 26 11 0 OUTLINE AND INSTALLATION CHARACTERISTICS Figure 18 03875 06 0214 Outline Dra...

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