Renesas PCA4738L-64A Technical Information PDF herunterladen (Seite 24)

21

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3822 Group

MITSUBISHI MICROCOMPUTERS

Fig. 17 Port block diagram (3)

V

L2

/V

L3

V

L

1

/

V

S

(

1

3

)

P

o

r

t

P

5

6

D

a

t

a

b

u

s

D

i

r

e

c

t

i

o

n

r

e

g

i

s

t

e

r

P

o

r

t

l

a

t

c

h

P

u

l

-

u

p

c

o

n

t

r

o

l

T

O

U

T

o

u

t

p

u

t

c

o

n

t

r

o

l

b

i

t

T

i

m

e

r

o

u

t

p

u

t

(

1

4

)

P

o

r

t

P

6

D

a

t

a

b

u

s

D

i

r

e

c

t

i

o

n

r

e

g

i

s

t

e

r

P

o

r

t

l

a

t

c

h

Pull-up control

A-D conversion input

A

n

a

l

o

g

i

n

p

u

t

p

i

n

s

e

l

e

c

t

i

o

n

b

i

t

(

1

5

)

P

o

r

t

P

7

0

D

a

t

a

b

u

s

D

i

r

e

c

t

i

o

n

r

e

g

i

s

t

e

r

P

o

r

t

l

a

t

c

h

P

o

r

t

X

C

s

w

i

t

c

h

b

i

t

+

P

u

l

-

u

p

c

o

n

t

r

o

l

Port X

C

switch bit

Oscillation circuit

P

o

r

t

P

7

1

P

o

r

t

X

C

s

w

i

t

c

h

b

i

t

(

1

6

)

P

o

r

t

P

7

1

Data bus

D

i

r

e

c

t

i

o

n

r

e

g

i

s

t

e

r

P

o

r

t

l

a

t

c

h

Port X

C

switch bit

P

o

r

t

X

C

s

w

i

t

c

h

b

i

t

+

P

u

l

-

u

p

c

o

n

t

r

o

l

Sub-clock generating circuit input

V

L3

V

L2

V

L1

(

1

7

)

C

O

M

0

–

C

O

M

3

(

1

8

)

S

E

G

0

–

S

E

G

1

T

h

e

g

a

t

e

i

n

p

u

t

s

i

g

n

a

l

o

f

e

a

c

h

t

r

a

n

s

i

s

t

o

r

i

s

c

o

n

t

r

o

l

e

d

b

y

t

h

e

L

C

D

d

u

t

y

r

a

t

i

o

a

n

d

t

h

e

b

i

a

s

v

a

l

u

e

.

The voltage applied to the sources of

P-channel and N-channel transistors

is the controlled voltage by the bias

value.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 81 82

Kommentare zu diesen Handbüchern

Keine Kommentare

Renesas PCA4738L-64A Technical Information Seite 24

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Prozessoren Renesas PCA4738L-64A