Datasheet
Rev.1.20 Jan 27, 2006 page 3 of 27
REJ03B0069-0120
R8C/13 Group 1. Overview
1.3 Block Diagram
Figure 1.1 shows this MCU block diagram.
Figure 1.1 Block Diagram
T
i
m
e
r
X
(
8
b
i
t
s
)
T
i
m
e
r
Y
(
8
b
i
t
s
)
T
i
m
e
r
Z
(
8
b
i
t
s
)
T
i
m
e
r
C
(
1
6
b
i
t
s
)
W
a
t
c
h
d
o
g
t
i
m
e
r
(
1
5
b
i
t
s
)
M
e
m
o
r
yR
8
C
/
T
i
n
y
S
e
r
i
e
s
C
P
U
c
o
r
e
I
/
O
p
o
r
t
P
o
r
t
P
0
8
P
o
r
t
P
1
8
Port P3
5
M
u
l
t
i
p
l
i
e
r
S
y
s
t
e
m
c
l
o
c
k
g
e
n
e
r
a
t
o
r
X
IN
-X
OUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
UART
(8 bits ✕ 1 channel)
P
o
r
t
P
4
1 2
Pe
r
i
p
h
e
r
a
l
f
u
n
c
t
i
o
n
s
U
A
R
T
o
r
C
l
o
c
k
s
y
n
c
h
r
o
n
o
u
s
s
e
r
i
a
l
I
/
O
(
8
b
i
t
s
✕
1
c
h
a
n
n
e
l
)
A
/
D
c
o
n
v
e
r
t
e
r
(
1
0
b
i
t
s
✕
1
2
c
h
a
n
n
e
l
s
)
NOTES:
1. ROM size depends on MCU type.
2. RAM size depends on MCU type.
R
0
LR
0
H
R
1
HR
1
L
R2
R3
A0
A1
F
B
S
B
ISP
USP
INTB
PC
FLG
T
i
m
e
r
ROM
RAM
(
2
)
(1)