NEC uPD780328 Subseries - Manual (Page 33)

CHAPTER 3 INSTALLATION
User’s Manual U16214EJ1V0UM
33
3.3 Mask Option Setting
3.3.1 LCD booster
When shipped, an LCD drive booster is mounted on the parts board in the LCD MOPT (IC2) socket of the IE-
780338-NS-EM1.
To change the LCD drive booster, mount the resistors or capacitors necessary for the parts board or others
provided with this product in the LCD MOPT socket.
Figure 3-16 shows the LCD drive booster.
Caution The booster on the target system cannot be used.
Figure 3-16. LCD MOPT Socket (IC2)
Connection Pins Part Used Parts Board at Shipment
1-16 Capacitor C1 0.47 µ F
3-14 Resistor R2 2 M Ω
4-13 Resistor R1 1 M Ω
6-11 Capacitor C2 0.47 µ F
7-10 Capacitor C3 0.47 µ F
8-9 Capacitor C4 0.47 µ F
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CAPL
N.C.
V LCDC
N.C.
GND
GND
GND V LC0
V LC1
N.C.
V LC2
GND
N.C.
CAPH
C1
C2
C3
C4
R1
R2