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url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 1 of 13 LMS0192B lcd module user manual shenzhen topway technology co., ltd. rev. descriptions release date 0.1 prelimiay release 2004-09-24
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 2 of 13 table of content 1. basic specifications........................................................................................................... ..... 3 1.1 display spec ificat ions ......................................................................................................... ................................... 3 1.2 mechanical sp ecificat ions ...................................................................................................... ................................ 3 1.3 block di agram .................................................................................................................. ...................................... 3 1.4 terminal f uncti ons............................................................................................................. .................................... 4 1.5 jumper f uncti ons............................................................................................................... .................................... 4 2. absolute maximum ratings.................................................................................................... 5 3. electrical characteristics..................................................................................................... ... 5 3.1 dc characte ristics ............................................................................................................. .................................... 5 3.2 led backlight circuit characte ristics.......................................................................................... ........................... 5 3.3 ac characte ristics ............................................................................................................. .................................... 6 4. function specifications ........................................................................................................ .. 9 4.1 basic se tting .................................................................................................................. ........................................ 9 4.2 resetting the lcd mo dule ....................................................................................................... .............................. 9 4.3 display memory map ............................................................................................................. ................................ 9 4.4 display comm ands ............................................................................................................... ............................... 10 4.5 display commands (continue) .................................................................................................... ......................... 11 4.6 basic operating s equence (exa mple)............................................................................................. ..................... 12 5. design and handling precaution ......................................................................................... 13
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 3 of 13 1. basic specifications 1.1 display specifications 1) lcd display mode : fstn, positive, transflective 2) display color : display data = ?1? : dark gray (*1) : display data = ?0? : light gray (*2) 3) viewing angle : 6h 4) driving method : 1/65 duty, 1/9 bias 5) back light : yg 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 : 79.0 x 42.3 x 6.3max (see attached outline drawing for details) 1.3 block diagram lcd panel 160 x 64 pixels vss led backlight circuit vdd vled - a0 , /rd , /wr d0 ~ d7 /res , /cs1 s1d15705 or equivalent com36 : com32 seg163 : : seg4 com0 : com31
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 4 of 13 1.4 terminal functions pin no. pin name i/o descriptions 1 vled- power backlight negative power supply 2 /cs1 input chip select: /cs1=low : data io is enabled 3 /res input reset: /res=low: initialization is executed /res=high: normal 4 a0 input control / display data flag: a0=high: data on d0 to d7 is display data a0=low: data on d0 to d7 is control data 5 /wr(r/w) input in 8080 interface mode: write enable input, active low in 6800 interface mode: r/w=high: read mode selected r/w=low: write mode selected 6 /rd(e) input in 8080 interface mode: read enable input, active low in 6800 interface mode: enable clock signal, active high 7 : 12 d0 : d5 13 d6(scl) 14 d7(si) i/o bi-directional data bus: in parallel interface mode: 8-bit data i/o in serial interface mode: d7=si(serial data input), d6=scl(serial clock input) 15 vdd power positive power supply 16 vss power 0v supply, ground (0v) 1.5 jumpers functions back side of lcd module jumper function descriptions jp3 8080/6800 mode microprocessor interface mode select a=short, b=open: 8080 series microprocessor interface (default) a=open, b=short: 6800 series microprocessor interface jp4 p/s mode serial / parallel interface mode select c=close, d=open: parallel interface selected (default) c=open, d=close: serial interface selected p/s mode chip select data / command data read / write serial clock parallel i/f /cs1 a0 d0-d7 /rd, /wr - serial i/f /cs1 a0 si (d7) write only scl (d6) in serial interface mode: no data can be read from ram d0 to d5 are hz, /rd and /wr must be fixed high or low jp5 reserved - cautions: when setting the jumper, take extreme care at any unexpected short circuit or damage on the lcd module.
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 5 of 13 2. absolute maximum ratings items symbol min. max. unit condition supply voltage v dd -0.3 +6.0 v v ss = 0v input voltage v in -0.3 v dd +0.3 v v ss = 0v operating temperature t op -20 +70 c no condensation storage temperature t st -20 +80 c no condensation cautions: any stresses exceeding the absolute maximum ratings may cause substant ial damage to the device. functional operation of this device at ot her conditions beyond those list ed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. 3. electrical characteristics 3.1 dc characteristics v ss =0v, v dd =5.0v, t op =25 c items symbol min. typ . max. unit condition / application pin operating voltage v dd 4.5 5.0 5.5 v vdd input high voltage v ih 0.8xv dd - v dd v input low voltage v il 0 - 0.2xv dd v /res, /cs1, a0, /wr, /rd, d0~d7 output high voltage v oh 0.7xv dd - v dd v i oh =-0.3ma, d0~d7 output low voltage v ol 0 - 0.3xv dd v i ol =0.3ma, d0~d7 operating current i dd - 0.4 1.8 ma vdd sleep mode current i dds - - 1.0 a vdd 3.2 led backlight circuit characteristics v dd =5.0v, if vled- =60ma, t op =25 c items symbol min. typ. max. unit applicable pin forward voltage vf vled- - 3.0 - v vled- forward current if vled- - - 90 ma vled- vled- vdd
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 6 of 13 3.3 ac characteristics 3.3.1 8080 mode system bus timing v ss =0v, v dd =5.0v, t op =25 c item symbol min. typ. max. unit system cycle time tcyc8 320 - - ns address setup time (a0) taw8 10 - - ns address hold time (a0) tah8 10 - - ns control low pulse width (/wr) tcclw 40 - - ns control low pulse width (/rd) tcclr 90 - - ns control high pulse width (/wr) tcchw 40 - - ns control high pulse width (/rd) tcchr 40 - - ns data setup time tds8 40 - - ns data hold time tdh8 13 - - ns /rd access time (*2) tacc8 - - 90 ns output disable time (*2) tch8 - - 65 ns note: *1. input signal rise/fall time should be less than 12ns *2. cl=100pf
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 7 of 13 3.3.2 6800 mode system bus timing v ss =0v, v dd =5.0v, t op =25 c item symbol min. typ. max. unit system cycle time tcyc6 320 - - ns address setup time taw6 10 - - ns address hold time tah6 10 - - ns enable high pulse width (read) tewhr 90 - - ns enable high pulse width (write) tewhw 40 - - ns enable low pulse width (read) tewlr 40 - - ns enable low pulse width (write) tewlw 40 - - ns data setup time tds6 40 - - ns data hold time tdh6 13 - - ns output disable time (*2) toh6 - - 65 ns access time (*2) tacc6 - - 90 ns note: *1. input signal rise/fall time should be less than 12ns *2. cl=100pf
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 8 of 13 3.3.3 serial interface timing v ss =0v, v dd =5.0v, t op =25 c item symbol min. typ. max. unit serial clock cycle tscyc 250 - - ns serial clock high pulse width tshw 100 - - ns serial clock low pulse sidth tslw 100 - - ns address setup time tsas 65 - - ns address hold time tsah 130 - - ns data setup time tsds 65 - - ns data hold time tsdh 65 - - ns cs serial clock time tcss 130 - - ns cs serial clock time tcsh 130 - - ns note: *1. input signal rise/fall time should be less than 12ns 3.3.4 reset timing v ss =0v, v dd =5.0v, t op =25 c item symbol min. typ. max. unit reset time tr - - 2 s reset low pulse width trw 2 - - s note: *1. input signal rise/fall time should be less than 12ns
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 9 of 13 4. function specifications 4.1 basic setting to drive the lcd module correctly and provide normally display, please use the following setting - built-in oscillator circuit=on - lcd bias set = 1/9 - adc = 1 (reverse) - com output state selection = reverse - display start line = 0 - display all lighting on/off = off (normal) - display normal/reverse = normal - set power control set: voltage follower = on, voltage booster = on, voltage adjusting circuit = on - display on/off = on note: *1. these setting/commands should iss ue the lcd module while start up. *2. see the display commands section for details. 4.2 resetting the lcd module the lcd module should be initialized by using /res terminal. while turning on the vdd and vss power supply, maintain /res terminal at low level. after the power supply stabilized, release the reset terminal (/res=high) 4.3 display memory map page address data lcd display (front view) 0 d0 : d7 1 d0 : d7 2 d0 : d7 3 d0 : d7 4 d0 : d7 5 d0 : d7 6 d0 : d7 7 d0 : d7 column address 24h ? c3h note: *1. adc = 1 (reverse) *2. com output state selection = reverse *3. display start line = 0 160x64 p ixels
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 10 of 13 4.4 display commands code no. instructions a0 /rd /wr d7 d6 d5 d4 d3 d2 d1 d0 function 1 display on/off 0 1 0 1 0 1 0 1 1 1 0 / 1 0 = turns off lcd 1 = turns on lcd 2 set display start line 0 1 0 0 1 display start address specifies display ram location for first line of display 3 set page address 0 1 0 1 0 1 1 page address set the display ram page address set column address (upper-4-bits) 0 1 0 0 0 0 1 col. add. upper set the upper-4-bit of column address counter 4 set column address (lower-4-bits) 0 1 0 0 0 0 0 col. add. lower set the lower-4-bit of column address counter 5 read status 0 0 1 status 0 0 0 0 read the internal status d4=reset, 1=resetting, 0=normal d5=display on/off, 1=off, 0=on d6=adc flag, d7=busy flag, 1=busy, 0=ready 6 write display data 1 1 0 display data write data into the display ram 7 read display data 1 0 1 display data read data form the display ram 8 adc select 0 1 0 1 0 1 0 0 0 0 0 / 1 sets the column address direction 0 = normal display 1 = flipped in x direction 9 normal/reverse display 0 1 0 1 0 1 0 0 1 1 0 / 1 0 = normal display 1 = reverse display 10 display all on 0 1 0 1 0 1 0 0 1 0 0 / 1 0 = normal display 1 = all-on 11 set lcd bias 0 1 0 1 0 1 0 0 0 1 0 / 1 set the lcd driving voltage bias 0 = 1/9 bias 1 = 1/7 bias 12 read-modify-write 0 1 0 1 1 1 0 0 0 0 0 enter the ?read-modify-write? mode column address counter will increase in each ?write display data?, and will not increase in each ?read display data command? 13 end 0 1 0 1 1 1 0 1 1 1 0 clear the ?read-modify-write? mode 14 reset 0 1 0 1 1 1 0 0 0 1 0 resets the lcd module 15 common output status selection 0 1 0 1 1 0 0 0 / 1 *** set the com scanning direction 0 = normal display 1 = flipped in y direction * = don?t care terms 16 power control set 0 1 0 0 0 1 0 1 power status set the power circuit operation mode d0 = lcd supply voltage follower d1 = lcd supply voltage adjusting circuit d2 = lcd supply voltage booster (1=on, 0=off)
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 11 of 13 4.5 display commands (continue) code no. instructions a0 /rd /wr d7 d6 d5 d4 d3 d2 d1 d0 function 17 set internal resistance ratio for v5 adjustment 0 1 0 0 0 1 0 0 ratio setting set the built-in resistor ratio (rb/ra) electronic vol. mode 0 1 0 10000001 turn on the electronic vol m ode 18 set electronic vol. register 0 1 0 x x electronic control value set electronic vol. value (display contrast value) 20 power save 0 1 0 1010100 0 / 1 moves to the power save state: 0 = stand-by 1 = sleep 21 power save reset 0 1 0 11100001 reset power save 22 set n-line reversal drive register 0 1 0 0 0 1 1 no. of rev line sets the number of line reversal drive lines 23 n-line reversal drive reset 0 1 0 1 1 1 0 0 1 0 0 resets the line reversal drive 24 turn on built-in oscillator circuit 0 1 0 1 0 1 0 1 0 1 1 start the operation of t he built-in cr oscillator circuit 25 nop 0 1 0 1 1 1 0 0 0 1 1 non-operation command 26 test 0 1 0 1 1 1 1 x x x x test command. do not use. note: *1. do not use any other command not lis ted, or the system malfunction may result. *2. for the details of the display commands , please refer to s1d15705 series data sheet. 4.5.1 power off the lcd module it recommends that enter sleep mode before power off the lcd module. 4.5.2 refreshing the lcd module it recommends that the operating modes and display contents be refreshed periodically to prevent the effect of unexpected noise.
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 12 of 13 4.6 basic operating sequence (example) 4.6.1 initialization sequence code function a0 d7 d6 d5 d4 d3 d2 d1 d0 hex note turn on power supply vdd & vss while maintaining /res at low - - - - - - - - - - - wait until power supply is stabilized - - - - - - - - - - - release the /res reset signal ( /res = high) ---- - -- - - - see ac characteristics section for timing details turn on built-in oscillator circuit 0 1 0 1 0 1 0 1 1 abh turn on the oscillator lcd bias = 1/9 0 1 0 1 0 0 0 1 0 a2h lcd panel characteristic adc = reverse 0 1 0 1 0 0 0 0 1 a1h flip on x-direction (seg) com output status = reverse 0 1 1 0 0 1 0 0 0 c8h flip on y-direction (com) display start line=0 0 0 1 0 0 0 0 0 0 40h i.e. display ram ?page 0 - d0? matched to top line of the lcd power control lcd supply voltage follower = on lcd supply voltage adjusting circuit = on lcd supply voltage booster = on 0 0 0 1 0 1 1 1 1 2fh turn on all the internal power circuit for driving the lcd normally set internal resistance ratio for v5 adjustment 0 0 0 1 0 0 1 0 1 25h set the built-in resistor ratio to middle set electronic vol. mode 0 1 0 0 0 0 0 0 1 81h set electronic vol. register 0 0 0 0 1 0 0 1 1 13h set to the middle of the range it may be adjusted for achieving the best display contrast display on 0 1 0 1 0 1 1 1 1 afh turn on the lcd display set page address = 0 010110000 b0h specify the display data ram page address to 00h set column address (upper-4bit=0) 0 0 0 0 1 0 0 0 0 10h set column high (lower-4bit=0) 0 0 0 0 0 0 0 0 0 00h specify the display data ram column address to 00h write display data 1 display data write data to display data ram. after write, the internal column address counter will be increased by 1 automatically write other display data ?
topway lcd module user manual LMS0192B url: www.topwaydisplay.com www.topwaysz.com document name: LMS0192B-manual-rev0.1.doc page: 13 of 13 5. design and handling precaution 1. 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 environment 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

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