25
2
CHAPTER 2 PIN FUNCTIONS
2.1 PIN FUNCTION LIST
2.1.1 Normal Operating mode
(1) Ports
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34-P37
P60-P63
P64
Note 2
P65
Note 2
P66
P67
P70-P75
Port 0 (P0):
Can be used as two four-bit, real-time output ports. Can drive transistors
directly.
Port 2 (P2):
Cannot be used as a general-purpose port (non-maskable interrupt). The
input level can be checked as part of the interrupt routine. Pins P22 to
P27 can be collectively connected to internal pull-up resistors by means
of software.
Port 3 (P3):
Each pin can be assigned to be either an input or output pin. Input pins
can be collectively connected to internal pull-up resistors by means of
software.
Port 4 (P4):
Can be simultaneously assigned to be either input or output pins. Can be
collectively connected to internal pull-up resistors by means of software.
Can directly drive LEDs.
Port 5 (P5):
Each pin can be assigned to be either an input or output pin. Input pins
can be collectively connected to internal pull-up resistors by means of
software. Can directly drive LEDs.
Port 6 (P6):
Each of pins P64 to P67 can be assigned to be either an input or output
pin. Input pins P64 to P67 can be collectively connected to internal pull-
up resistors by means of software.
Port 7 (P7)
Output
Input
NMI
INTP0
INTP1
INTP2/CI
INTP3
INTP4/ASCK
INTP5
SI
RxD
TxD
SCK
SO/SB0
TO0-TO3
A16-A19
RD
WR
WAIT/AN6
REFRQ/AN7
AN0-AN5
—
Pin name for
secondary
function
Notes 1.
In the case of the
µ
PD78213, these pins do not function as ports.
2.
In the case of the
µ
PD78213, neither P64 nor P65 functions as a port.
Pin
Function
Input/Output
Input
Input/Output
Input/Output
Input/Output
Input/Output
Output
P00-P07
P40-P47
Note 1
P50-P57
Note 1
A8-A15
AD0-AD7
Содержание PD78212
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