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CHAPTER 4 PIN FUNCTIONS (
μ
PD78018FY SUBSERIES)
(2) Pins other than port pins (1/2)
External interrupt request input for which valid edge can be specified
(rising edge, falling edge, and both rising and falling edges)
Falling edge detection external interrupt request input
Serial data input of serial interface
Serial data output of serial interface
Serial data I/O of serial interface
Serial clock I/O of serial interface
Strobe output for serial interface automatic transmission/reception
Busy input for serial interface automatic transmission/reception
External count clock input to 16-bit timer (TM0)
External count clock input to 8-bit timer (TM1)
External count clock input to 8-bit timer (TM2)
16-bit timer (TM0) output (shared by 14-bit PWM output)
8-bit timer (TM1) output
8-bit timer (TM2) output
Clock output (for trimming of main system clock, subsystem clock)
Buzzer output
Low-order address/data bus when memory is externally extended
High-order address bus when memory is externally extended
Strobe signal output for external memory read
Strobe signal output for external memory write
Wait insertion when external memory is accessed
Strobe output that externally latches address information output to ports
4 and 5 to access external memory
Function
Pin Name
INTP0
INTP1
INTP2
INTP3
SI0
SI1
SO0
SO1
SB0
SB1
SDA0
SDA1
SCK0
SCK1
SCL
STB
BUSY
TI0
TI1
TI2
TO0
TO1
TO2
PCL
BUZ
AD0-AD7
A8-A15
RD
WR
WAIT
ASTB
I/O
Input
Input
Output
I/O
I/O
Output
Input
Input
Output
Output
Output
I/O
Output
Output
Input
Output
On Reset
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Shared by:
P00/TI0
P01
P02
P03
P25/SB0/SDA0
P20
P26/SB1/SDA1
P21
P25/SI0/SDA0
P26/SO0/SDA1
P25/SI0/SB0
P26/SO0/SB1
P27/SCL
P22
P27/SCK0
P23
P24
P00/INTP0
P33
P34
P30
P31
P32
P35
P36
P40-P47
P50-P57
P64
P65
P66
P67