Wire interface timing figure 6 – Rainbow Electronics DS1631 User Manual

Page 9

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DS1631

9 of 14

2-WIRE INTERFACE TIMING Figure 6

C2

a)

Is

su

e a

"S

ta

rt

C

onv

er

t T”

or

S

top Conv

er

t T” Comma

nd

S

11

00

A2

A1

A0

W

AC

7

C

6

C

5

C

4

A

C3

C1

C0

P

Co

nt

rol By

te

C

o

mma

nd

By

te

STAR

T

ST

O

P

AC

K

(D

S

163

1)

SC

L

SD

A

AC

K

(DS

1

63

1)

A

D2

D6

D5

D

4

D3

D1

D

0

A0

W

A

A1

1

0

1

0

1

10

0

A

D

7

A2

b) Wr

ite

to the

Conf

ig

u

ra

tion Re

gis

te

r

S

11

00

Con

tro

l B

yt

e

STAR

T

SC

L

SD

A

AC

K

(DS

1

63

1)

Com

m

an

d B

yt

e

P

D

ata

By

te

(fro

m Mas

ter)

ST

O

P

ACK

(D

S

1

63

1)

AC

K

(DS

1

63

1)

N

A1

S1

1

00

A2

A1

A0

W

01

0

A

1

10

0

D6

D5

D

4

D3

D2

D1

D

0

P

D7

S1

1

00

A2

A1

A0

R

A

c)

Re

ad

Fr

om th

e C

onfigur

at

ion R

egis

te

r

AC

K

(D

S

163

1)

R

epe

at

ST

AR

T

SC

L

SD

A

Con

tro

l B

yt

e

ST

A

R

T

C

omma

nd

By

te

Dat

a

B

yt

e

(f

rom

DS

16

31

)

ST

O

P

NA

CK

(M

as

te

r)

Con

trol B

yt

e

AC

K

(D

S

163

1)

AC

K

(DS

1

63

1)

A2

A1

A0

C

2

SC

L

SD

A

d

)

W

rite to the T

H

or

T

L

Reg

ist

er

S

11

00

W

A

Con

tro

l B

yt

e

ST

A

R

T

ACK

(D

S

1

63

1)

A

C

7

C6

C5

C4

C3

C1

C0

Com

m

an

d B

yt

e

AC

K

(DS

1

63

1)

D4

D6

D

5

D3

D2

D0

D7

D6

D5

D

4

D3

D2

D1

D

0

D7

A

D1

P

LS

D

ata

By

te

(fro

m

M

as

ter)

A

M

S

D

a

ta

By

te

(fro

m

M

as

te

r)

STO

P

AC

K

(DS

1

63

1)

AC

K

(DS

1

63

1)

AD

2

D

1

D

0

D6

D5

D4

D3

D7

A2

A1

A0

00

A

C4

C3

C2

C1

C7

C6

C5

A2

A1

A0

e)

Read

F

ro

m

t

h

e T

emp

erat

u

re, T

H

, or

T

L

Reg

ist

er

A

AC

K

(D

S

163

1)

Re

pe

at

ST

AR

T

A

SC

L

SD

A

S

11

00

W

Co

nt

rol B

yt

e

STAR

T

C0

C

o

mma

nd

B

yt

e

S

11

R

Co

nt

rol B

yt

e

M

S

D

a

ta

By

te

(f

ro

m

DS

16

31

)

AC

K

(DS

1

63

1)

AC

K

(D

S

163

1)

AC

K

(Mas

te

r)

D5

N

D6

D

4

D3

D2

D1

D

0

P

LS

D

ata

By

te

(fro

m

DS

16

31

)

STO

P

D7

NACK

(M

ast

e

r)

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