Renesas R8C/Tiny Series Manuale Pagina 168

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Vedere la pagina 167
R8C/10 Group 17.5 Standard Serial I/O Mode
Rev.1.20 Jan 27, 2006 page 158 of 180
REJ09B0019-0120
P
i
n Description
V
C
C
,
V
S
S
A
p
p
l
y
t
h
e
v
o
l
t
a
g
e
g
u
a
r
a
n
t
e
e
d
f
o
r
P
r
o
g
r
a
m
a
n
d
E
r
a
s
e
t
o
V
c
c
p
i
n
a
n
d
0
V
t
o
V
s
s
p
i
n
.
IV
CC
Connect capacitor (0.1 µF) to Vss.
R
E
S
E
T
P
4
6
/
X
I
N
Connect a ceramic resonator or crystal oscillator between XIN
and
X
OUT
pins in standard serial I/O mode 2. When using the main clock in standard serial I/O
mode 1, connect a ceramic resonator or crystal oscillator between X
IN
and
XOUT
pins. When
not using the main clock in standard serial I/O mode 1, connect this pin to Vcc via a resistor
(pull-up).
P
4
7
/
X
O
U
T
A
V
C
C
,
A
V
S
S
V
R
E
F
Connect AVss to Vss and AVcc to Vcc, respectively.
Enter the reference voltage for AD from this pin.
P
0
1
t
o
P
0
7
Input "H" or "L" level signal or open.
P
1
0
t
o
P
1
7
Input "H" or "L" level signal or open.
P3
0
to P3
3
Input "H" or "L" level signal or open.
P
4
5
Input "H" or "L" level signal or open.
P
0
0
Serial data output pin
M
O
D
E
C
N
V
S
S
Standard serial I/O mode 1: connect to flash programmer
Standard serial I/O mode 2: Input "L".
P3
7
Serial data input pin
N
a
m
e
P
o
w
e
r
i
n
p
u
t
IV
CC
R
e
s
e
t
i
n
p
u
t
P
4
6
i
n
p
u
t
/
C
l
o
c
k
i
n
p
u
t
P
4
7
i
n
p
u
t
/
C
l
o
c
k
o
u
t
p
u
t
A
n
a
l
o
g
p
o
w
e
r
s
u
p
p
l
y
i
n
p
u
t
R
e
f
e
r
e
n
c
e
v
o
l
t
a
g
e
i
n
p
u
t
I
n
p
u
t
p
o
r
t
P
0
I
n
p
u
t
p
o
r
t
P
1
Input port P3
I
n
p
u
t
p
o
r
t
P
4
T
x
D
o
u
t
p
u
t
M
O
D
E
C
N
V
S
S
RxD input
I/O
I
I
I/O
I
I
I
I
I
O
I/O
I
/
O
I
S
t
a
n
d
a
r
d
s
e
r
i
a
l
I
/
O
m
o
d
e
1
:
c
o
n
n
e
c
t
t
o
f
l
a
s
h
p
r
o
g
r
a
m
m
e
r
S
t
a
n
d
a
r
d
s
e
r
i
a
l
I
/
O
m
o
d
e
2
:
I
n
p
u
t
"
L
"
.
Reset input pin.
I
Table 17.7 Pin Functions (Flash Memory Standard Serial I/O Mode)
Vedere la pagina 167
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