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CHAPTER 4 PIN FUNCTION (
µ
PD78014Y Subseries)
81
(2) Non-Port Pins (1/2)
Pin Name
Input/
Function
After
Alternate
Output
Reset
Function
INTP0
Input
External interrupt request inputs with specifiable valid edges (rising
Input
P00/TI0
INTP1
edge, falling edge, both rising and falling edges).
P01
INTP2
P02
INTP3
External interrupt request input with falling edge detection.
Input
P03
SI0
Input
Serial interface serial data input
Input
P25/SB0/SDA0
SI1
P20
SO0
Output
Serial interface serial data output
Input
P26/SB1/SDA1
SO1
P21
SB0
Input/
Serial interface serial data input/output
Input
P25/SI0/SDA0
SB1
Output
P26/SO0/SDA1
SDA0
P25/SI0/SB0
SDA1
P26/SO0/SB1
SCK0
Input/
Serial interface serial clock input/output
Input
P27/SCL
SCK1
Output
P22
SCL
P27/SCK0
STB
Output
Serial interface automatic transmit/receive strobe output
Input
P23
BUSY
Input
Serial interface automatic transmit/receive busy input
Input
P24
TI0
Input
External count clock input to 16-bit timer (TM0)
Input
P00/INTP0
TI1
External count clock input to 8-bit timer (TM1)
P33
TI2
External count clock input 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 main system clock and subsystem clock trimming)
Input
P35
BUZ
Output
Buzzer output
Input
P36
AD0 to AD7
Input/
Low-order address/data bus at external memory expansion.
Input
P40 to P47
Output
A8 to A15
Output
High-order address bus at external memory expansion.
Input
P50 to P57
RD
Output
External memory read operation strobe signal output.
Input
P64
WR
External memory write operation strobe signal output.
P65
WAIT
Input
Wait insertion at external memory access.
Input
P66
ASTB
Output
Strobe output which latches the address data output for ports 4 or 5 to
Input
P67
access external memory.
Содержание 78014Y Series
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