CHAPTER 2 PIN FUNCTIONS
36
User’s Manual U11302EJ4V0UM
(2) Non-port pins (1/2)
Pin Name
I/O
Function
After
Alternate
Reset
Function
INTP0
Input
Input
P00/TI0
INTP1
P01
INTP2
P02
INTP3
External interrupt request input with falling edge detection
P03
SI0
Input
Serial interface serial data input
Input
P25/SB0
SI1
P20
SO0
Output
Serial interface serial data output
Input
P26/SB1
SO1
P21
SB0
I/O
Serial interface serial data input/output
Input
P25/SI0
SB1
P26/SO0
SCK0
I/O
Serial interface serial clock input/output
Input
P27
SCK1
P22
STB
Output
Serial interface automatic transmit/receive strobe output
Input
P23
BUSY
Input
Serial interface automatic transmit/receive busy input
Input
P24
TI0
Input
Input of external count clock to 16-bit timer (TM0)
Input
P00/INTP0
TI1
Input of external count clock to 8-bit timer (TM1)
P33
TI2
Input of external count clock to 8-bit timer (TM2)
P34
TO0
Output
16-bit timer (TM0) output (also used for 14-bit PWM output)
Input
P30
TO1
8-bit timer (TM1) output
P31
TO2
8-bit timer (TM2) output
P32
PCL
Output
Clock output (for trimming main system clock and subsystem clock)
Input
P35
BUZ
Output
Buzzer output
Input
P36
FIP0 to FIP12
Output
High withstanding voltage and high current output for VFD controller/ Output
—
driver display output.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified with the mask option.
The
µ
PD78P0208 has on-chip pull-down resistors (connected to
V
LOAD
).
FIP13 to FIP20
Output
Output
P80 to P87
FIP21 to FIP28
P90 to P97
FIP29 to FIP36
Input
P100 to P107
FIP37 to FIP44
P110 to P117
FIP45 to FIP52
P120 to P127
V
LOAD
—
Pull-down resistor connection for VFD controller/driver
—
—
ANI0 to ANI7
Input
A/D converter analog input
Input
P10 to P17
AV
REF
Input
A/D converter reference voltage input
—
—
AV
DD
—
A/D converter analog power supply. Connect to V
DD
.
—
—
AV
SS
—
A/D converter ground potential. Connect to V
SS
.
—
—
RESET
Input
System reset input
—
—
External interrupt request inputs for which the valid edges (rising
edge, falling edge, or both rising and falling edges) can be
specified.
High withstanding voltage and high current output for VFD controller/
driver display output.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified with the mask option.
The
µ
PD78P0208 has no on-chip pull-down resistors.
Содержание mPD780208 Subseries
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