LM2088EFW-9 LCD Module User Manual Document Name: LM2088EFW-9-Manual-Rev0.1 Page: 1 of 11

LCD Module User Manual Document Name: LM2088EFW-9-Manual-Rev0.1 Page: 2 of 11

LCD Module User Manual Display Specifications 1) LCD Display Mode : STN, Negative, Transmissive 2) Display Color : Display Data = “1” : Light Gray (*1) : Display Data = “0” : Dark Blue(*2) 3) Viewing Angle :6H 4) Driving Method : 1/240 duty, 1/14 bias 5) Backlight : 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 *3. Fine Contrast adjustment function is necessary in application design for optimal display result Mechanical Specifications 1) Outline Dimension : 160.0 x 109.0 x 11.2 MAX....

LCD Module User Manual Power Power Input Input Input Input Descriptions 0V Power Supply, GND Positive Power Supply LCD Contrast Reference Input Write enable input, active LOW Read enable input, active LOW Chip Select Signal /CS=LOW: Data IO is enabled Data Type Select A0=H: command write, display data or cursor add read A0=L: status flag read, display data or parameter write Reset Signal: /RES = L, Reset the LCD Module /RES = H, Normal Running I/O Output Power Power Power Input - 8-bit bi-directional data bus Wait signal (*1) Power Booster Output for V0 Positive Power Supply for LED backlight...

LCD Module User Manual 2. Absolute Maximum Ratings Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Condition VSS = 0V VSS = 0V No Condensation 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 implied and prolonged exposure to extreme conditions may affect device reliability. DC Characteristics VSS=0V, VDD=5.0V, TOP=25C MAX. Unit Applicable Pin VDD 5.5 V Items Operating Voltage Input High Voltage...

LCD Module User Manual Item /CS setup time A0 setup time /WR, /RD falling edge to /WAIT driven low D[7:0] setup time to /WR rising edge (write cycle) /RD falling edge to D[7:0] driven (read cycle) /CS hold time A0 hold time /RD, /WR rising edge to WAIT# high impedance D[7:0] hold time from /WR rising edge (write cycle) D[7:0] hold time from /CS rising edge (read cycle) /WAIT rising edge to valid Data /RD, /WR pulse inactive time /WAIT pulse active time = System clock period = 2Ts + 5 = 1Ts + 7 (for 5.0V) = 1Ts (for a read cycle followed by a read or write cycle) = 2Ts + 2 (for a write cycle followed...

LCD Module User Manual Reset Timing Item Oscillator Stable Delay (*1) Reset Pulse Duration (*2) note: *1. A delay is required after exiting power save mode. Writing the SYSTEM SET command will exit power save mode and start the internal oscillator. *2. It requires a reset pulse after power-on in order to re-initialize its internal state. Reset Timing Diagram Document Name: LM2088EFW-9-Manual-Rev0.1 Page: 7 of 11

LCD Module User Manual 4. Function Specifications VDD VOUT Power Supply 4.1 Adjusting the Display Contrast A Variable-Resistor must be connected to the LCD module for providing a reference to V0. Adjusting the VR will result the change of LCD display contrast. The recommended value of VR is 25k to 50k 4.2 Resetting the LCD module The LCD module should be initialized by hardware reset, using /RST terminal. Jumper Functions Interfacing Setting Jumper JP9 JP8 Function Description Open Close 8080 mode selected Close Open 6800 mode selected Clock Divider Setting Jumper JP4 JP5 JP6 JP7 Open Close Open...

POWER SAVE DISP ON/OFF SCROLL CGRAM ADR HDOT SCR CSRW GRAY SCALE MWRITE ParaCommand meter SYSTEM SET P1 LCD Module User Manual HEX Descriptions 40 Init device and display (with 8 parameters) ** M0=0: internal CG ROM M0=1: internal CG RAM M2=0: 8-pixel char height M2=1: 16-pixel char height W/S=0: single panel drive W/S=1: dual panel drive IV=0: Screen top-line correction IV=1: No screen top-line correction FX=Horizontal Char Size in pixels – 1 (define the horizontal char size) MOD=0: 16-line AC drive MOD=1: two frame AC drive Set display overlay format (with 1 parameters) Write to display memory...

LCD Module User Manual 4.6 Initialization Setting Example The following setting should be issue to LCD module after hardware reset. (example could be adjusted if necessary.) Command Parameter SYSTEM SET P1 DISP ON/OFF SCROLL CSRDIR OVLAY HDOT SCR GRAY SCALE CSRW Memory Data : Memory Data Descriptions Init device and display (with 8 parameters) M0=0: internal CG ROM M2=0: 8-pixel char height W/S=0: single panel drive IV=1: No screen top-line correction FX=7: the horizontal char size=7+1=8 WF=1: two frame AC drive FY=7: the vertical char size=7+1=8 C/R: Character Bytes per Row TC/R: Total Char...

LCD Module User Manual 5. Design and Handling Precaution Please refer to "LCD-Module-Design-Handling-Precaution.pdf". Document Name: LM2088EFW-9-Manual-Rev0.1 Page: 11 of 11