LM16032DFC-0B - topwaydisplay.com
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1. 7 Adjusting the LCD display Contrast 2 2 cea eligi cte rte tenerte ta neveu rete rtu etra ede le Pe de vaa enn eden 7 Display Memory Map ES 8 Display Control INStHrUuCHONS sisitna icsecesethasaceccecacnsndsssuces aeaea er Aa Aa a aer a eae E arretea d En aha adiar EEE berbie 10 Design and Handling Precaution csesciue cst eni anuasGskEcn SKK DHL S CEU Dx DI KE IR DEC SRc EDU QR d Ed QE dE 12 www towpaydispaly com Document Name LM16032DFC 0B Manual RevO 1 doc www topwaysz com Page 2 of 12 TOPWAY LCD Module User Manual LM16032DFC 0B 1 Basic Specifications 1 1 Display Specifications 1 LCD Display Mode STN Negative Transflective 2 Display Color Display Data 1 Light Gray 1 Display Data 0 Deep Blue 2 3 Viewing Angle 6H 4 Driving Method 1 33 duty 1 5bias 5 Back Light White LED backlight Note 1 Color tone may slightly change by Temperature and Driving Condition 2 The Color is defined as the inactive background color 1 2 Mechanical Specifications 1 Outline Dimension 116 0 x 35 0 x 14 0MAX see attached Outline Drawing for details 1 3 Block Diagram BLA en BL LCD Panel Circuit 160 x 32 pixels VSS A z z 2 9 VDD E z TEES o v 8386 D m m m oO o o oO OBOS DE ST7920 ST7921 or or RS R W E equivalent equivalent URL www towpaydispaly com Document Name LM16032DFC 0B Manual RevO2. 20 ns Address set up time tas 13 ns Address hold time tah 25 ns Data set up time tdsw 50 ns Data delay time tddr 125 ns Data hold time th 25 ns RS R W DBO DB7 RS R W DBO DB7 Host Read Timing Diagram URL www towpaydispaly com Document Name LM16032DFC 0B Manual RevO 1 doc www topwaysz com Page 6 of 12 TOPWAY 4 Function Specifications 4 1 4 2 4 3 URL Resetting the LCD module LCD Module User Manual LM16032DFC 0B The LCD module will be initialized reset after the power on It is suggested to check the Busy Flag to ensure the reset procedure finish The initialized status is as follow Functions Initialized Status ENTER MODE SET D 1 cursor move to right S 0 DDRAM address counter AC plus 1 DISPLAY STATUS D 0 display OFF C 0 cursor OFF B 0 cursor position blink OFF FUNCTION SET DL 1 8bit Interface RE 0 Basic Instruction Set SCROLL OR RAM ADDR SELECT SR 0 CGRAM address access is enabled REVERSE R1 0 RO 0 First line normal EXTENDED FUNCTION SET G 0 Graphic Display OFF The Parallel interface The parallel interface 8 bit or 4 bit bus interface could be selected by FUNCTION SET instruction DL bit In 4 bit bus interface every 8 bit instruction data is separated into two parts First transfer the higher 4 bit D7 D4 Then transfer the lower 4 bit D3 D0 They are transferred via DB7 DB4 terminals where DB3 DB
3. implied and prolonged exposure to extreme conditions may affect device reliability 3 Electrical Characteristics 3 1 DC Characteristics Vss 0V Vpp 5 0V Top 25 C Items Symbol MIN TYP MAX Unit Applicable Pin Operating Voltage Vpp 4 8 5 0 5 2 V VDD LCD Driving Voltage Vo 4 5 V VO Input High Voltage Viii 0 8Vpp Vop V Input Low Voltage Vi4 Vss 0 4 V RO SW ESDIDUPDBI Output High Voltage Vout 0 7Vpp Vop V DBO DB7 lou 0 1mA Output Low Voltage Vout Vss 0 6 V DBO DB7 lo 0 1mA Operating Current Ipp 1 9 5 0 mA VDD VSS 3 2 LED Backlight Circuit Characteristics Vss 0V Ifa 47 60mA Top 25 C Items Symbol MIN TYP MAX Unit Applicable Pin Forward Voltage VfeLa 5 0 V BLA Forward Current Ifaia 75 mA BLA Cautions Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime URL BLA VSS POET E Imi I No of LED 3 pcs Em lizrcll lcu lr Document Name LM16032DFC 0B Manual RevO 1 doc www towpaydispaly com www topwaysz com Page 5 of 12 TOPWAY LCD Module User Manual LM16032DFC 0B 3 3 AC Characteristics Vss 0V Vpp 5V Top 25 C Item Symbol MIN TYP MAX Unit E cycle time tc 1500 ns E high level width tpw 175 ns E rise time tr 20 ns E fall time tf
4. the same group of instruction set URL www towpaydispaly com www topwaysz com Second byte set the Horizontal address AC3 ACO Document Name LM16032DFC 0B Manual Rev0 1 doc Page 11 of 12 TOPWAY LCD Module User Manual LM16032DFC 0B 5 Design and Handling Precaution URL The LCD panel is made by glass Any mechanical shock eg dropping form high place will damage the LCD module 2 Do not add excessive force on the surface of the display which may cause the Display color change abnormally 3 The polarizer on the LCD is easily get scratched If possible do not remove the LCD protective film until the last step of installation 4 Never attempt to disassemble or rework the LCD module 5 Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol Other solvents eg water may damage the LCD 6 When mounting the LCD module make sure that it is free form twisting warping and distortion 7 Ensure to provide enough space with cushion between case and LCD panel to prevent external force adding on it or it may cause damage to the LCD or degrade the display result 8 Only hold the LCD module by its side Never hold LCD module by add force on the heat seal or TAB 9 Never add force to component of the LCD module It may cause invisible damage or degrade of the reliability 10 LCD module could be easily damaged by static electricity Be careful to maintain an optimum anti static work environ
5. 1 doc www topwaysz com Page 3 of 12 TOPWAY 1 4 Terminal Functions LCD Module User Manual LM16032DFC 0B is aun 1 0 Descriptions 1 VSS Power Negative Power Supply Ground 0V 2 VDD Power Positive Power Supply 3 VO Power Power Supply for LCD Driving 4 RS Input Register Select RS H data read or write RS L Instruction data write or status busy flag read R W Input Read write control 5 R W H data or status read R W 7L data or command write 6 E Input E Enable trigger f EU ue Three state I O terminal for display data or instruction data 14 DB7 lO In 4 bit mode DB3 DBO could leave open or pull up 15 BLA Power Positive Power for LED backlight 16 NC No Connection should leave open URL www towpaydispaly com Document Name LM16032DFC 0B Manual RevO 1 doc www topwaysz com Page 4 of 12 TOPWAY LCD Module User Manual 2 Absolute Maximum Ratings LM16032DFC 0B Items Symbol Min Max Unit Condition Supply Voltage Vop 0 3 5 5 V Vss OV Input Voltage Vin 0 3 Vpp 0 3 V Vss OV LCD Driving Voltage VEE 0 3 7 0 V Vss OV Operating Temperature Top 0 50 C No Condensation Storage Temperature Tst 10 60 eC No Condensation Cautions Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device Functional operation of this device at other conditions beyond those listed in the specification is not
6. EME NEN 9 i lt 160x32 pixels 37 T C EOE gt 1Eh n MM eet DENN 1Fh i GDRAM Address Map Note 1 The mapping is based on Vertical Scroll Displacement Address 0 2 Another 160x32 Graphics Display RAM space is not showed They could be displayed by adjusting the Vertical Scroll Displacement Address value URL www towpaydispaly com Document Name LM16032DFC 0B Manual RevO 1 doc www topwaysz com Page 8 of 12 TOPWAY 4 4 3 Display Data RAM DDRAM GB Character Code 16bit A1AOh F7FFh could write into DDRAM for displaying the Simplified Chinese Character 16x16 dots font User Characters 16bit 0000h or 0002h defined by user that stored in CGRAM could also be used The display character should be on grid only LCD Module User Manual LM16032DFC 0B DDRAM Address Lower 4bit 00h Oth O2h 07h 08h O9h HIL H JL H L A Bd EJ E 95 80h co MEMINI 10 x 2 Characters i QS a 28 T 16x16 dots font DDRAM Address Map with 16x16 dots font Note 1 The mapping is based on Vertical Scroll Displacement Address 0 2 Another 10x2 Characters Display Data RAM space is not showed They could be displayed by adjusting the Vertical Scroll Displacement Address value Standard ASCII code 8bit O0h 7Fh could write into DDRAM for displaying the half width Character 8x16 dots font The display chara
7. LM16032DFC 0B LCD Module User Manual Shenzhen Topway Technology Co Ltd Descriptions Release Date Preliminary New release 2004 11 15 URL www towpaydispaly com Document Name LM16032DFC 0B Manual RevO 1 doc www topwaysz com Page 1 of 12 TOPWAY LCD Module User Manual LM16032DFC 0B Table of Content 1 1 1 1 2 1 3 1 4 3 1 3 2 3 3 4 4 1 4 2 4 3 4 4 4 5 5 URL ECT 3EzT 1 Te eT Ld o 1 tp PL 3 Display Specifications RM 3 Mechanical SpeCcIflCatlOfis c os trii Faden kit ms dees esse Fete ee fobs Lens se mih KE sp Se AERE PH aaa aiaa aieiai 3 BlOck Diagram e 3 Iustus kc 4 Absolute Maximum RACH Ss uiireenerirncneiticcikikd clics Sa ls St xit ra essa est riri ada c Ex dA KU EVER 5 Electrical CharaeteristiOS use oiiekucpeknd dai a dices ni ERE soni XR RR XIX SA ER aen RE FEQILATA UR Aa ER VY D NER R VR E RUE 5 pezeurte ii lm Q H 5 LED Backlight Circuit Characteristics o einer anin A AE GO e EE aL ERMR SEU E Bre dE E EAEE 5 AG Characteristics E 6 Function Specifications e Ln 7 Resetting the LOD module ne eget bsec case URN ERR A Fans eb gese losa pae ex ea Rea t Pau SERRE CORR R neca ROS 7 The Parallelumtentace ct
8. O are not in used leave open or pull high LCD Module Adjusting the LCD display contrast A Variable Resistor may be connected to the LCD VO module for providing LCD Driving Voltage VO Adjusting the VR will result the change of LCD display contrast The recommended value of VR is 5k Ohm VDD www towpaydispaly com www topwaysz com Document Name LM16032DFC 0B Manual Rev0 1 doc Page 7 of 12 TOPWAY LCD Module User Manual LM16032DFC 0B 4 4 Display Memory Map There are three main memory areas in the LCD module for display Character Generator RAM CGRAM Graphic Display RAM GDRAM Display Data RAM DDRAM 4 4 14 Character Generator RAM CGRAM Character Generator RAM is for storing the User defined Characters a 16x16 dots font There are only two characters could be defined The User defined Character Codes are 0000h and 0002h They could be called into DDRAM as normal character User defined CGRAM CGRAM data Character Code Address D15 D8 D7 DO 00h 01h 0000h 16 x 16 dot font OEh OFh 10h 11h 0002h 16 x 16 dot font 1Eh 1Fh CGRAM Address Map 4 4 2 Graphics Display RAM GDRAM GDRAM is for full graphics display It could be displayed when G 1 set by EXTENDED FUNCTION SET in Extended Instruction Set Horizontal Address X 00h 01h 2 08h 09h D15 DO D15 DO D15 DO D15 DO Jh am EL HN d o on M
9. cter should be on grid only and two characters should be written in each write operation DDRAM Address Lower 4bit 00h 01h 02h 07h 08h 09h H L H L H L e H L H L H L 3 9 d d L 22 MEM MNNMNMENNEM 20 X 2 Characters Ries Qoo i i i OZ amp oo 8x16 dots font DDRAM Address Map with 8x16 dots font Note P The mapping is based on Vertical Scroll Displacement Address 0 2 Another 20x2 Characters Display Data RAM space is not showed They could be displayed by adjusting the Vertical Scroll Displacement Address value URL www towpaydispaly com www topwaysz com Document Name LM16032DFC 0B Manual RevO 1 doc Page 9 of 12 TOPWAY LCD Module User Manual 4 5 Display Control Instructions LM16032DFC 0B 4 5 1 Basic Instruction Set RE 0 basic instruction set Code 25 8 8 2 Biaxin g m i jg pem pom pom em em em gm Instructions eer ee Sea OE Funcion lalalala alal alai Fill DDRAM with 20h and set DDRAM address CLEAR 0 0 0 0 0 0 0 0 0 1 counter AC to 00h Set DDRAM address counter AC to OOh and put HOME 0 0 0 0 0 0 0 0 1 X J cursor to origin DDRAM content no changed Set cursor position and display shift when doing ENTRY write or read operation D 1 cursor move right AC increased by 1 MODE O 0 Ma MIO eT MUS I D 0 cursor move left AC decreased by 1 S 1
10. ment to protect the LCD module 11 When peeling off the protective film from LCD static charge may cause abnormal display pattern It is normal and will resume to normal in a short while 12 Take care and prevent get hurt by the LCD panel sharp edge 13 Never operate the LCD module exceed the absolute maximum ratings 14 Keep the signal line as short as possible to prevent noisy signal applying to LCD module 15 Never apply signal to the LCD module without power supply 16 IC chip eg TAB or COG is sensitive to the light Strong lighting environment could possibly cause malfunction Light sealing structure casing is recommend 17 LCD module reliability may be reduced by temperature shock 18 When storing the LCD module avoid exposure to the direct sunlight high humidity high temperature or low temperature They may damage or degrade the LCD module www towpaydispaly com Document Name LM16032DFC 0B Manual Rev0 1 doc www topwaysz com Page 12 of 12
11. struction set URL www towpaydispaly com www topwaysz com Document Name LM16032DFC 0B Manual RevO 1 doc Page 10 of 12 TOPWAY 4 5 2 Extended Instruction Set LCD Module User Manual LM16032DFC 0B RE 1 extended instruction set Code o Z 5 8 3 lB g m 8 z T y niniaiajiaoa aoaj ai ao z Instructions Lug a cilii TOT Function SCROLL 0r SR 1 enable vertical scroll position lololoiolo olol 1 1 i iti RAM ADDR 0 0 0 0 0 0 0 0 1 SR SR 0 enable CGRAM address basic instruction SELECT S dee E HL REVERSE 0 olojo 1 R1 RO Toggle 1 out of 4 line in DDRAM of the display to be reversed initial value is R1 RO 0 0 DL 1 8bit interface E EET Most ction 1 instructi FUNCTION 0 0 RE 0 basic instruction SET G 1 graphics display ON G 0 graphics display OFF et the address of vertical scro SET Set the add f vertical scroll SCROLL 01010 Make sure extended instruction SR 1 enable ADDR vertical scroll position SET 0 Set the GDRAM address to address counter AC Dual byte command should write consecutively Sane 0 First byte set the Vertical address AC6 ACO Note 1 For the details of the Display Control Instructions please refer to Sitronix ST7920 series datasheet 2 RE is the selection byte of basic and extended instruction set Each time altering the value of RE it will remain Thus it is not necessary to set RE every time when using
12. toggle the shift of the entire display based on I D defined direction D 1 display ON DISPLAY D 0 display OFF C 1 cursor ON ON OFF oe a ee al ae ad oy C 0 cursor OFF B 1 blink ON B 0 blink OFF CURSOR Cursor position and display shift control iti i i DISPLAY 0 0 0 0 0 1 SCCIRL X X DbgAM content no changed CONTROL FUNCTION DL 1 8bit interface DL 0 4bit interface SET O O peut BETA EDS RE 1 extended instruction RE 0 basic instruction Set CGRAM address to address counter AC EM O O O 4 1 ACSJIACAACS AC2ACT1 ACO Make sure that in extended instruction SR 0 scroll or RAM address selected SET DDRAM Set DDRAM address to address counter AC ADDR 0 0 ACTIAC6 ACSIACAIAC3IAC2 AC1 ACO where AC7 1 AC6 0 READ BF amp MEINER Me en ee Read busy flag BF for completion of the internal ADDR 0 1 BF ies ages aa Des a AGU operation also read out the value of AC Write data to internal RAM DDRAM CGRAM GDRAM WRITE RAM 1 Ww D7 DS Ds ps Dope DT DO For 16bit data write two byte consecutively high byte first then low byte ms mm Read data from internal RAM READ RAM 1 4 07 D6 ps Da D3 D2 p EXE E Note d For the details of the Display Control Instructions please refer to Sitronix ST7920 series datasheet 2 REis the selection byte of basic and extended instruction set Each time altering the value of RE it will remain Thus it is not necessary to set RE every time when using the same group of in
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