![LAPIS Semiconductor ML610472 Скачать руководство пользователя страница 228](http://html1.mh-extra.com/html/lapis-semiconductor/ml610472/ml610472_user-manual_3645865228.webp)
ML610471/472/473/Q471/Q472/Q473 User's Manual
Chapter 18 LCD Drivers
18-3
18.1.3 Configuration of the Bias Generation Circuit
The bias generation circuit generates LCD drive voltages (V
L1
to V
L3)
by multiplying the power supply voltage (V
DD
) or
the voltage (V
DDL
) generated by the voltage regulator circuit with the capacitor (C
12
).
When a system reset starts the bias generation circuit operation stops.
Figure 18-3-1 and 18-3-2 show the configuration of the bias generation circuit.
Figure 18-3-1 Configuration of Bias Generation Circuit (1/3 Bias)
Bias generation
circuit
V
DD
V
SS
Bias circuit ON selected
(BSON)
To LCD driver
(V
L1
to V
L3
)
VDD = 1.25 to 3.6V, with LCD regulator
V
DD
Voltage regulator
circuit
V
DDL
Cl
V
L3
V
L2
Cc
Cb
V
L1
C2
C1
C
12
Bias generation
circuit
V
SS
C2
C1
C
12
Bias circuit ON selected
(BSON)
To LCD driver
(V
L1
to V
L3
)
VDD = 2.4 to 3.6V, without LCD
V
L3
V
L2
V
L1
Ca
Cb
V
DD
Bias generation
circuit
V
SS
C2
C1
C
12
Bias circuit ON selected
(BSON)
To LCD driver
(V
L1
c
V
L3
)
VDD = 1.6 to 3.6V, without LCD
V
L3
V
L2
V
L1
Cc
Ca
V
DD
Содержание ML610472
Страница 12: ...Chapter 1 Overview...
Страница 38: ...Chapter 2 CPU and Memory Space...
Страница 44: ...Chapter 3 Reset Function...
Страница 48: ...Chapter 4 MCU Control Function...
Страница 62: ...Chapter 5 Interrupts...
Страница 82: ...Chapter 6 Clock Generation Circuit...
Страница 94: ...Chapter 7 Time Base Counter...
Страница 105: ...Chapter 8 Capture...
Страница 114: ...Chapter 9 Timer...
Страница 133: ...Chapter 10 Watchdog Timer...
Страница 141: ...Chapter 11 UART...
Страница 164: ...Chapter 12 Port 0...
Страница 173: ...Chapter 13 Port 2...
Страница 180: ...Chapter 14 Port 3...
Страница 188: ...Chapter 15 Port 4...
Страница 199: ...Chapter 16 Port 6...
Страница 205: ...Chapter 17 RC Oscillation Type A D Converter...
Страница 225: ...Chapter 18 LCD Drivers...
Страница 243: ...Chapter 19 Power Supply Circuit...
Страница 245: ...Chapter 20 uEASE Flash Writer System...
Страница 249: ...Chapter 21 Software Development...
Страница 258: ...Appendixes...
Страница 280: ...Revision History...