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Notes 1. Whether to use these pins as input port pins (P70 to P73) or segment outputs (S16 to S19) can be
selected in 1-bit units by means of a mask option or port function register (refer to 4.3 (3) Port function
registers and CHAPTER 20 MASK 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 or port function register (refer to 4.3 (3) Port function
registers and CHAPTER 20 MASK OPTIONS).
Cautions 1. Connect the IC (Internally Connected) pin directly to V
2. Connect the AV
3. Connect the AV
Remark
The parenthesized values apply to the
Pin Name
ANI0 to ANI7:
Analog input
ASCK20:
Asynchronous serial input
AV
:
Analog power supply
DD
AV
:
Analog ground
SS
CAPH, CAPL:
LCD power supply capacitance
control
COM0 to COM3:
Common output
CPT20:
Capture trigger input
IC0:
Internally connected
INTP0 to INTP3:
External interrupt input
KR0 to KR7:
Key return
KR00 to KR07:
Key return
KR10 to KR17:
Key return
P00 to P07:
Port 0
P10, P11:
Port 1
P20 to P25:
Port 2
P30 to P34:
Port 3
P60 to P67:
Port 6
P70 to P73:
Port 7
P80 to P87:
Port 8
30
CHAPTER 1 GENERAL
pin to V
.
DD
DD
pin to V
.
SS
SS
µ
PD78F9489.
User's Manual U15331EJ4V1UD
.
SS
RESET:
Reset
RIN:
Remote control input
RxD0:
Receive data
S0 to S27:
Segment output
SCK10:
Serial clock input/output
SI10:
Serial data input
SO10:
Serial data output
SCK20:
Serial block input/output
SI20:
Serial data input
SO20:
Serial data output
TMI60, 61:
Timer input
TO20,50,60,61: Timer output
TxD0:
Transmit data
V
:
Power supply
DD
V
to V
:
Power supply for LCD
LC0
LC2
V
:
Programming power supply
PP
V
:
Ground
SS
X1, X2:
Crystal (Main system clock)
XT1, XT2:
Crystal (Subsystem clock)
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