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13.1.3
Pin Configuration
Table 13.1 shows the pins assigned to the LCD controller.
Table 13.1 Pin Configuration
Pin Name
Common output pins
Segment output pins
LCD bias setting pins
LCD test pin
LCD step-up capacitance
connection pins
LCD drive power supply
level
LCD step-up circuit
reference power supply
LCD step-up power supply
output pin
LCD drive power supply
Abbr.
I/O
COM1 to COM32
Output LCD common drive pins
SEG1 to SEG64
Output LCD segment drive pins
V3, V4
Input
V34
Input
⎯
C1+, C1–
C2+, C2–
V1OUT to V5OUT I/O
V
Input
Ci
VLOUT
Output LCD step-up voltage output pin
V
Input
LCD
13. Dot Matrix LCD Controller (H8/3857 Group)
Function
LCD bias setting
Internal resistance test pins, shorted to V3
For connection of external capacitances
for LCD step-up
LCD drive power supply level input/output
pins
Reference input voltage for LCD step-up
circuit, also functioning as step-up circuit
power supply
LCD drive power supply input pin
Rev.3.00 Jul. 19, 2007 page 329 of 532
REJ09B0397-0300
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