CHAPTER 13 LCD CONTROLLER/DRIVER
(3) LCD voltage amplification control register 0 (LCDVA0)
LCDVA0 controls the voltage amplification level during the voltage amplifier operation.
Figure 13-4. Format of LCD Voltage Amplification Control Register 0
Symbol
7
0
6
0
5
0
4
0
3
0
2
0
1
0
<0>
Address
FFB3H
After reset
00H
R/W
R/W
LCDVA0
GAIN
GAIN
Reference voltage (VLC2) level selectionNote
0
1
1.5 times (specification of the LCD panel used is 4.5 V.)
1.0 times (specification of the LCD panel used is 3 V.)
Note Select the settings according to the specifications of the LCD panel that is used.
Caution Before changing the LCDVA0 setting, be sure to stop voltage amplification (VAON0 = 0).
Remark The TYP. value is indicated as the reference voltage (VLC2) value.
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User’s Manual U15075EJ1V0UM00
NEC [ NEC ]
