Lcd; Real Time Clock (Rtc) - Panasonic EB-G60 Service Manual

5.9. LCD

The 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 of
icons. It can accommodate Chinese and large character sets.
Figure 5.6 : LCD Dimensions
The LCD driver is controlled by setting the command register through the G2 u-wire interface and an I/O line, which
distinguishes between command or data. To send data or a command to the display driver, the nCS2 line is used for chip
select. 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 crystal
and 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 calibrate
out crystal tolerance / drift by writing to the compensation registers. This calibration can provide adjustments ±555.6ppm
in 0.0085ppm increments.
Registers for RTC are assigned between $FFFE : 1800 - $FFFE:1815.
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