Panasonic EB-G60 Service Manual

Also see for EBG60 - CELL PHONE: Operating instructions Operating instructions

– 5–15 –5.9. LCDThe LCD module consists of a LCD glass and driver chip connection to the Main PCB via a flexible PCB strip.A 128 x RGB x 128 pixels graphical display is used which can display up to 16 characters x 6 rows-plus two rows oficons. It can accommodate Chinese and large character sets.Figure 5.6 : LCD DimensionsThe LCD driver is controlled by setting the command register through the G2 u-wire interface and an I/O line, whichdistinguishes between command or data. To send data or a command to the display driver, the nCS2 line is used for chipselect. LCDA0 (I/0 3) is set high to send data and set low to send commands.5.10. Real Time Clock (RTC)Clock Functions are provided by the Real Time Clock is built into G2. The module is synchronic by a 32.768 kHz crystaland has a backup power source provided by a button battery.G2 has a clock auto compensation function to take into account any inaccuracies of the crystal. This is able to calibrateout crystal tolerance / drift by writing to the compensation registers. This calibration can provide adjustments ±555.6ppmin 0.0085ppm increments.Registers for RTC are assigned between $FFFE : 1800 - $FFFE:1815.