EM78P510N
8-Bit Microcontrollers
6.9.3 R7 LCDBR (LCD Data Buffer)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
LCD_D 7 LCD_D 6 LCD_D 5 LCD_D 4 LCD_D 3 LCD_D 2 LCD_D 1 LCD_D 0
Bits 7~0 (LCD_D7~LCD_D0): LCD RAM Data Transfer Register
* When the value of the display segment is “1”, the LCD display is turned on; when the
bit value is “0”, the display is turned off
VDD
R
VLCD1
6R
R
R
R
VLCD2
VLCD3
MUX
0.6 R
0.8 R
BS0 ~ BS1
0.8 R
0.5 R
0.6R
VLCD
MUX
LCDVC0 ~ LCDVC2
0.3 R
0.4 R
VSS
6.9.4 R8 LCDVCR (LCD Voltage Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
LCDC1
LCDC0
LCDVC2 LCDVC1 LCDVC0
Bits 7~5: Reserved
Bits 4~3 (LCDC1~LCDC0): LCD Clock
LCDC1
LCDC0
Fm
16M
8M
FLCD
Fc/29
Fc/28
Fc/27
Fc/26
0
0
1
1
0
1
0
1
4M
2M
When the main oscillator operates in crystal mode and there is no sub-oscillator, it is a
must to set these two bits used for LCD clock.
62 •
Product Specification (V0.9) 09.12.2006
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
