CHAPTER 3 LCD CONTROLLER/DRIVER
User’s Manual U18438EJ2V0UD
18
3.2 Configuration of LCD Controller/Driver
The LCD controller/driver consists of the following hardware.
The LCD controller/driver includes of two blocks: LCDSEG block for controlling segments, and LCDCTL block for
controlling LCD register setting and mode setting.
Table 3-2. Configuration of LCD Controller/Driver
Item Configuration
Display outputs
Segment signals: 36 (52-pin product), 40 (64-pin product)
Common signals: 4 (COM0 to COM3)
Display block
(LCDSEG)
36 byte RAM (52-pin product),
40 byte RAM (64-pin product)
LCD
controller/
driver
Control block
(LCDCTL)
LCD mode setting register (LCDMD)
LCD display mode register (LCDM)
LCD clock control register (LCDC)
LCD voltage boost control register 0 (VLCG0)
Figure 3-1. Configuration of LCD Controller/Driver
LCD Controller
LCD Driver
LCDCTL
I
2
C Bus Interface
LCDSEG
Microcontroller
SCL
SDA
Reset Input
Clock Input
f
LCLK
µ
PD71312