Datasheet

RL78/L12 CHAPTER 14 LCD CONTROLLER/DRIVER
R01UH0330EJ0200 Rev.2.00 607
Dec 13, 2013
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Display data memory
LCD boost level control register (VLCD)
LCD clock control register 0 (LCDC0)
LCD mode register 0 (LCDM0)
Subsystem clock supply mode control register (OSMC)
LCD mode register 0 (LCDM0)
Selector
LCD mode register 1 (LCDM1)
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. . . . . . . .
Selector Selector Selector Selector
Segment
driver
Segment
driver
Segment
driver
Segment
driver
LCDC3 LCDC2
LCDC1
LCDC0
6
22
LWAVELDTY2 LDTY1 LDTY0 LBAS1 LBAS0
V
L3
V
L4
COM0 COM3
32106574
26H
SEG38
LCDON
LCDCL
V
L1
CAPH
CAPL
V
L2
VLCON
VLCD4
WUTMMCK0
MDSET1
MDSET0
6
LCDC4LCDC5
f
SUB
f
IL
f
LCD
f
MAIN
VLCON
LCDON
SCOC
BLON
LCDSEL
VLCD3
VLCD2
VLCD1 VLCD0
5
COM4/
SEG0
COM7/
SEG3
32106574
04H
LCDON
SEG4
32106574
32106574
03H
LCDON
32106574
32106574
00H
LCDON
32106574
32106574
INTRTC
INTLCD0
LCDVLM
Internal bus
Internal bus
LCD drive voltage controller
Clock generator
for voltage boost
Voltage boost
circuit
Clock generator
for
capacitor split
Capacitor split
circuit
LCD
clock
selector
Timing
controller
Common voltage
controller
Segment voltage
controller
Common driver
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Figure 14-1. Block Diagram of LCD Controller/Driver
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