Panasonic EB-GD93, Техническое руководство

Страница: 25 / 46

BASEBAND OVERVIEW
MCUK001001G8 Section 6 Issue 1
Technical Guide – 21 – Revision 0
6.6. LCD
The LCD modules consists of a LCD glass and driver chip on a flexible PCB with connection to the Main PCB.
The LCD has a format of 96 x 65 pixels to provide maximum information. It can display up to three lines of 16 characters plus
two lines of icons.
Figure 6.2: LCD Dimensions
The LCD is driven by an EPSON SED1565 display driver which has internal RAM for the display. The driver is controlled by
setting the command register through the Hercules uwire I/F and one I/O line assigned to distinguish command or data. When
sending data or commands, the nSCS0 line is used for chip select. To send data, LCD_RS(I/O 3) is set high, and to send
commands, the line is set low.
6.7. Real Time Clock (RTC)
Clock functions are provided by an external Real Time Clock module (U607). The module is synchronised by a 32.768kHz
crystal and has a back-up power source provided by a button battery.
A clock auto compensation function calibrates crystal frequency tolerance by writing compensation registers. Calibration range
is ± 555.6 ppm in 0.0085 ppm steps.
24.37
32.60 min
0.01
0.365
View Area
Effective Area
0.01
0.290
10399-1
28.79
36.10 min
Dimensions are in millimetres (mm)
96 x 65 Pixels
(GD93)