Datasheet
CHAPTER 15 LCD CONTROLLER/DRIVER
User’s Manual U18698EJ1V0UD 379
LCDC4 LCDC2
LCDC1
LCDC0
LCDC6
LCDC5
33
VAON LCDM2
COM0 COM1 COM2 COM3 COM4/
SEG0
COM5/
SEG1
COM6/
SEG2
COM7/
SEG3
3210
32106574
FA40H
LCDON
32106574
FA53H
SEG19
SEG4
3210
LCDON
LCDCL
LCDM1
VAON
LCDM0
LCDON
SCOC
MDSET1 MDSET0
2
3
3210
32106574
FA54H
LCDON
32106574
FA55H
SEG21
SEG20
3210
LCDON
fLCD
2
6
fLCD
2
7
fLCD
2
4
fLCD
2
5
fLCD
2
8
fLCD
2
9
VLC0
fXT
fPRS/2
6
fPRS/2
7
fPRS/2
8
fRL/2
3
fLCD
VLC2VLC3 VLC1
LCD drive voltage controller
Internal bus
Timing
controller
Segment voltage
controller
Common voltage
controller
Common driver
Prescaler
LCD
clock
selector
selector selector selector selector
LCD clock control
register (LCDC)
LCD display mode
register (LCDM)
Segment
driver
Segment
driver
Segment
driver
Segment
driver
LCD mode register
(LCDMD)
Selector
Gate booster
circuit
Display data memory
Figure 15-1. Block Diagram of LCD Controller/Driver