Renesas R8C/Tiny Series Handbuch PDF herunterladen (Seite 115)

R8C/10 Group

Rev.1.20 Jan 27, 2006 page 105 of 180

REJ09B0019-0120

1/2

φ

AD

1/2

f

A

D

A/D conversion rate

selection

C

K

S

1

=

1

C

K

S

0

=

0

AD register

Resistor ladde

r

S

u

c

c

e

s

s

i

v

e

c

o

n

v

e

r

s

i

o

n

r

e

g

i

s

t

e

r

A

D

C

O

N

0

V

com

V

I

N

D

a

t

a

b

u

s

V

R

E

F

A

V

S

S

V

C

U

T

=

0

V

C

U

T

=

1

CKS

0=1

C

K

S

1

=

0

D

e

c

o

d

e

r

Comparator

CH

2,

CH

1,

CH

0=000

2

C

H

2

,

C

H

1

,

C

H

0

=

0

0

1

2

C

H

2

,

C

H

1

,

C

H

0

=

0

1

0

2

C

H

2

,

C

H

1

,

C

H

0

=

0

1

1

2

C

H

2

,

C

H

1

,

C

H

0

=

1

0

0

2

C

H

2

,

C

H

1

,

C

H

0

=

1

0

1

2

CH

2,

CH

1,

CH

0=110

2

C

H

2

,

C

H

1

,

C

H

0

=

1

1

1

2

P0

7

/AN

0

P

0

6

/

A

N

1

P

0

5

/

A

N

2

P

0

4

/

A

N

3

P

0

2

/

A

N

5

P0

1

/AN

6

P0

0

/AN

7

P

0

3

/

A

N

4

CH0 to CH2: Bits in ADCON0 register

Figure 14.1 A/D Converter Block Diagram

14. A/D Converter

1 2 ... 110 111 112 113 114 115 116 117 118 119 120 ... 198 199

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