search

Renesas PCA4738L-64A Información técnica Pagina 32

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 73
  • Tabla de contenidos
  • MARCADORES
    • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 31
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
29
(2) Asynchronous Serial I/O (UART) Mode
Clock asynchronous serial I/O mode (UART) can be selected by
clearing the serial I/O mode selection bit of the serial I/O control
register to “0”.
Eight serial data transfer formats can be selected, and the transfer
formats used by a transmitter and receiver must be identical.
The transmit and receive shift registers each have a buffer regis-
ter, but the two buffers have the same address in memory. Since
the shift register cannot be written to or read from directly, transmit
data is written to the transmit buffer, and receive data is read from
the receive buffer.
The transmit buffer can also hold the next data to be transmitted,
and the receive buffer register can hold a character while the next
character is being received.
Fig. 25 Block diagram of UART serial I/O
Fig. 26 Operation of UART serial I/O function
f(X
IN
)
1
/
4
O
E
P
E
F
E
1/16
1/16
D
ata
b
us
R
e
c
e
i
v
e
b
u
f
f
e
r
r
e
g
i
s
t
e
r
A
d
d
r
e
s
s
0
0
1
8
1
6
R
e
c
e
i
v
e
s
h
i
f
t
r
e
g
i
s
t
e
r
R
e
c
e
i
v
e
b
u
f
f
e
r
f
u
l
l
f
l
a
g
(
R
B
F
)
R
e
c
e
i
v
e
i
n
t
e
r
r
u
p
t
r
e
q
u
e
s
t
(
R
I
)
B
au
d
rate generator
F
requency
di
v
i
s
i
on rat
i
o 1/
(
n+1
)
Add
ress 001
C
16
ST/SP/PA generator
Transmit buffer register
D
ata
b
us
T
r
a
n
s
m
i
t
s
h
i
f
t
r
e
g
i
s
t
e
r
Add
ress 001816
T
ransm
i
t s
hif
t reg
i
ster s
hif
t comp
l
et
i
on
fl
ag
(TSC)
T
ransm
i
t
b
u
ff
er empty
fl
ag
(TBE)
T
ransm
i
t
i
nterrupt request
(TI)
Add
ress 001916
S
T
d
e
t
e
c
t
o
r
S
P
d
e
t
e
c
t
o
r
U
A
R
T
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
Add
ress 001
B
16
C
h
a
r
a
c
t
e
r
l
e
n
g
t
h
s
e
l
e
c
t
i
o
n
b
i
t
A
d
d
r
e
s
s
0
0
1
A
1
6
B
R
G
c
o
u
n
t
s
o
u
r
c
e
s
e
l
e
c
t
i
o
n
b
i
t
T
ransm
i
t
i
nterrupt source se
l
ect
i
on
bit
S
er
i
a
l
I
/
O
sync
h
ron
i
zat
i
on c
l
oc
k
se
l
ect
i
on
bi
t
C
l
o
c
k
c
o
n
t
r
o
l
c
i
r
c
u
i
t
C
h
a
r
a
c
t
e
r
l
e
n
g
t
h
s
e
l
e
c
t
i
o
n
b
i
t
7
b
i
t
s
8
b
i
t
s
S
e
r
i
a
l
I
/
O
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
P
4
6/
S
C
L
K
S
er
i
a
l
I
/
O
status reg
i
ster
P
44/
R
X
D
P
45/
T
X
D
(
f
(
X
C
I
N
)
i
n
l
o
w
-
s
p
e
e
d
m
o
d
e
)
T
S
C
=
0
T
B
E
=
1
RBF
=0
T
B
E
=
0
TBE
=0
R
B
F
=
1
R
B
F
=
1
S
T
D
0
D
1
S
P
D
0
D
1
S
T
SP
TBE
=1
TSC=1
✽
ST
D
0
D
1
SP
D
0
D
1
ST
S
P
T
r
a
n
s
m
i
t
b
u
f
f
e
r
w
r
i
t
e
s
i
g
n
a
l
✽
Generated at 2nd bit in 2-stop-bit mode
1
s
t
a
r
t
b
i
t
7
o
r
8
d
a
t
a
b
i
t
s
1
o
r
0
p
a
r
i
t
y
b
i
t
1
o
r
2
s
t
o
p
b
i
t
(
s
)
1
:
E
r
r
o
r
f
l
a
g
d
e
t
e
c
t
i
o
n
o
c
c
u
r
s
a
t
t
h
e
s
a
m
e
t
i
m
e
t
h
a
t
t
h
e
R
B
F
f
l
a
g
b
e
c
o
m
e
s
“
1
”
(
a
t
1
s
t
s
t
o
p
b
i
t
,
d
u
r
i
n
g
r
e
c
e
p
t
i
o
n
)
.
2
:
T
h
e
t
r
a
n
s
m
i
t
i
n
t
e
r
r
u
p
t
(
T
I
)
c
a
n
b
e
g
e
n
e
r
a
t
e
d
t
o
o
c
c
u
r
w
h
e
n
e
i
t
h
e
r
t
h
e
T
B
E
o
r
T
S
C
f
l
a
g
b
e
c
o
m
e
s
“
1
”
,
d
e
p
e
n
d
i
n
g
o
n
t
h
e
s
e
t
t
i
n
g
o
f
t
h
e
t
r
a
n
s
m
i
t
i
n
t
e
r
r
u
p
t
s
o
u
r
c
e
s
e
l
e
c
t
i
o
n
b
i
t
(
T
I
C
)
o
f
t
h
e
s
e
r
i
a
l
I
/
O
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
.
3
:
T
h
e
r
e
c
e
i
v
e
i
n
t
e
r
r
u
p
t
(
R
I
)
i
s
s
e
t
w
h
e
n
t
h
e
R
B
F
f
l
a
g
b
e
c
o
m
e
s
“
1
”
.
4
:
A
f
t
e
r
d
a
t
a
i
s
w
r
i
t
t
e
n
t
o
t
h
e
t
r
a
n
s
m
i
t
b
u
f
f
e
r
r
e
g
i
s
t
e
r
w
h
e
n
T
S
C
=
1
,
0
.
5
t
o
1
.
5
c
y
c
l
e
s
o
f
t
h
e
d
a
t
a
s
h
i
f
t
c
y
c
l
e
i
s
n
e
c
e
s
s
a
r
y
u
n
t
i
l
c
h
a
n
g
i
n
g
t
o
T
S
C
=
0
.
N
o
t
e
s
S
er
i
a
l
output
T
X
D
S
e
r
i
a
l
i
n
p
u
t
R
X
D
R
e
c
e
i
v
e
b
u
f
f
e
r
r
e
a
d
s
i
g
n
a
l
T
r
a
n
s
m
i
t
o
r
r
e
c
e
i
v
e
c
l
o
c
k
Vista de pagina 31
1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 72 73

Comentarios a estos manuales

Sin comentarios
Relacionado con productos y manuales para Procesadores Renesas PCA4738L-64A
Procesadores Renesas H8S/2158 Información técnica   (11 paginas)
Procesadores Renesas PCA4738S-42A Especificaciones   (55 paginas)
Procesadores Renesas PROM Programming Adapter PCA7435FPG02 Manual de usuario   (88 paginas)
Procesadores Renesas PCA4738L-64A Información técnica   (82 paginas)
Procesadores Renesas QFP-144 Manual de usuario   (16 paginas)
Procesadores Renesas PCA4738L-64A Información técnica   (113 paginas)
  • New World Boyles Fitness Camry Blue Bamboo Qnap-security
  • Ewent Soportes De Mesa Para Pantalla Plana Denon Reproductores de casetes Remington Planchas para el pelo McIntosh Equipo de música complementario SkyLink Cubos de interfaz
  • Brother QL-1060N Anritsu Site Master S332D Sony D-EJ615 Noctua NF-A15 PWM Samsung Beat DJ
  • Philips B120-37 Manual de usuario Acer E600 Manual de usuario Lg A3UH363FA0 Manual de usuario Ashly SC-50 Manual de usuario