Datasheet

Table Of Contents
Section 21 LCD Controller/Driver
Rev. 2.00 Jul. 04, 2007 Page 457 of 692
REJ09B0309-0200
21.2 Input/Output Pins
Table 21.1 shows the LCD controller/driver pin configuration.
Table 21.1 Pin Configuration
Name Symbol I/O Function
Segment output
pins
SEG40 to SEG1 Output LCD segment drive pins
All pins are multiplexed as port pins (setting
programmable)
Common output
pins
COM4 to COM1 Output LCD common drive pins
Pins can be used in parallel with static or
1/2 duty
LCD power supply
pins
V1, V2, V3 Used when a bypass capacitor is connected
externally, and when an external power supply
circuit is used
LCD step-up
capacitance pins
C1, C2 Capacitance pins for stepping up the LCD drive
power supply
21.3 Register Descriptions
The LCD controller/driver has the following registers.
LCD port control register (LPCR)
LCD control register (LCR)
LCD control register 2 (LCR2)
LCD trimming register (LTRMR)
BGR control register (BGRMR)
LCDRAM