Datasheet

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TSZ02201-0C2C0E155560-1-2

© 2013 ROHM Co., Ltd. All rights reserved.

1.APR.2014 Rev.004

www.rohm.com

TSZ22111

・15・001

BD3491FS

(2) I

MSB

LSB

MSB

LSB

MSB

LSB

S

Slave Address

A

Select Address

A

Data

A

P

1bit

8bit

1bit

8bit

1bit

8bit

1bit 1bit

S

= Start conditions (Recognition of start bit)

Slave Address

= Recognition of slave address. 7 bits in upper order are voluntary.

The least significant bit is

“

L

”

due to writing.

A

= ACKNOWLEDGE bit (Recognition of acknowledgement)

Select Address

= Select every of volume, bass and treble.

Data

= Data on every volume and tone.

P

= Stop condition (Recognition of stop bit)

(3) I

1) Basic form

S

Slave Address

A

Select Address

A

Data

A

P

MSB

LSB

MSB

LSB

MSB LSB

2) Automatic increment (Assigned select Address is increased according to the number of data.)

S

Slave Address

A

Select Address

A

Data1

A

Data2

A

････

DataN

A

P

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

No.1. Data1 is set as data of address specified by Select Address.

No.2. Data2 is set as data of next address from the address specified by No.1.

No.3. DataN is set as data of address incremented N-1 times from the address specified by No.1.

Circulation of Select Address by the automatic increment function is shown below.

3) Configuration unavailable for transmission (In this case, only Select Address1 is set properly.)

S

Slave Address

A

Select Address1

A

Data

A

Select Address 2

A

Data

A P

MSB

LSB

MSB

LSB

MSB LSB

MSB

LSB

MSB LSB

(Note)If any data is transmitted as Select Address 2 next to data,

it is recognized as data, not as Select Address 2.

(4) Slave Address

MSB

LSB

A6

A5

A4

A3

A2

A1

A0

R/W

1

0

0

0

0

0

1

0

82H

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