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(2)
Non-port pins (2/2)
Pin Name
I/O
S0 to S15
Output
LCD controller/driver segment signal outputs
Note 1
S16 to S19
Note 2
S20 to S27
COM0 to COM3 Output LCD controller/driver common signal outputs
V
to V
–
LCD drive voltage
LC0
LC2
−
CAPH, CAPL
LCD drive voltage booster capacitor connection pin
ANI0 to ANI7
–
A/D converter analog input
AV
–
A/D converter ground potential
SS
AV
–
A/D converter analog power supply
DD
X1
Input
Connecting crystal resonator for main system clock oscillation
X2
–
XT1
Input
Connecting crystal resonator for subsystem clock oscillation
XT2
–
RESET
Input
System reset input
V
–
Positive power supply
DD
V
–
Ground potential
SS
IC0
–
Internally connected. Connect directly to V
V
–
Sets flash memory programming mode. Used to apply high
PP
voltage when a program is written or verified.
Notes 1. Whether to use these pins as input ports pins (P70 to P73) or segment outputs (S16 to S19) can be
selected in 1-bit units by means of a mask option in the
µ
the
PD78F9488, 78F9489 (refer to 4.3(3) Port function registers and CHAPTER 20
OPTIONS).
2. Whether to use these pins as I/O port pins (P80 to P87) or segment outputs (S20 to S27) can be
selected in 1-bit units by means of a mask option in the
µ
the
PD78F9488, 78F9489 (refer to 4.3(3) Port function registers and CHAPTER 20
OPTIONS).
µ
3.
PD789488 and 78F9488 only
µ
4.
PD789489 and 78F9489 only
CHAPTER 2 PIN FUNCTIONS
Function
Only when segment output is selected by
mask option
Only when segment output is selected by
mask option
.
SS
User's Manual U15331EJ4V1UD
After Reset
Low-level
output
Low-level
output
–
–
–
–
–
–
–
–
–
Input
–
–
–
–
µ
PD789488, 789489 or a port mode register in
µ
PD789488, 789489 or a port mode register in
Alternate Function
–
–
–
–
–
–
Note 3
P60 to P67
P60/KR10 to
Note 4
P67/KR17
–
–
–
–
–
–
–
–
–
–
–
MASK
MASK
39
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