
R8C/10 Group 13. Serial InterfaceI
Rev.1.20 Jan 27, 2006 page 90 of 180
REJ09B0019-0120
i
=
0
,
1
S
P
:
S
t
o
p
b
i
t
P
A
R
:
P
a
r
i
t
y
b
i
t
SP SP
2SP
1SP
UART
UART (7 bits)
UART (8 bits)
U
A
R
T
(
7
b
i
t
s
)
U
A
R
T
(
9
b
i
t
s
)
Clock
synchronous
type
Clock
synchronous type
TxDi
U
A
R
T
i
t
r
a
n
s
m
i
t
r
e
g
i
s
t
e
r
PAR
enabled
P
A
R
d
i
s
a
b
l
e
d
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
UiTB register
M
S
B
/
L
S
B
c
o
n
v
e
r
s
i
o
n
c
i
r
c
u
i
t
UART (8 bits)
UART (9 bits)
Clock
synchronous
type
U
i
R
B
r
e
g
i
s
t
e
r
UARTi receive register
2SP
1SP
P
A
R
e
n
a
b
l
e
d
P
A
R
d
i
s
a
b
l
e
d
U
A
R
T
UART (7 bits)
9
t
s
C
l
o
c
k
s
y
n
c
h
r
o
n
o
u
s
t
y
p
e
Clock
synchronous
type
UART (7 bits)
UART (8 bits)
R
x
D
i
Clock
synchronous type
UART (8 bits)
UART (9 bits)
D
a
t
a
b
u
s
l
o
w
-
o
r
d
e
r
b
i
t
s
MSB/LSB conversion circuit
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
D
8
0000000
S
PS
P
“0”
D
a
t
a
b
u
s
h
i
g
h
-
o
r
d
e
r
b
i
t
s
NOTES:
1. Clock synchronous type is provide in UART0 only.
P
R
Y
E
=
1
PRYE=0
P
R
Y
E
=
0
P
R
Y
E
=
1
Figure 13.2 UARTi Transmit/Receive Unit
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