R2S15900SP

Rev.1.3 May 30, 2005 page 7 of 8

I

MSB

LSB

MSB

LSB

MSB

LSB

S

Slave Address

A

Sub Address

A

Data

A

P

1 bit

8bit

1 bit

8bit

1 bit

8bit

1 bit

1bit

S: Starting Term

A: Acknowledge Bit

P: Stop Term

If more than one Data Byte is transmitted, then the significant SUB ADDRESS bits are auto incremented.

00H

→ 01H → 02H → 03H → 04H → 00H

1. Slave Address

MSB

LSB

1

0

0

0

0

0

1

2. Sub Address Table

BIT

Sub

Address

D7

D6

D5

D4

D3

D2

D1

D0

00H

Lch VOL<H>

Lch VOL<L>

01H

Rch VOL<H>

Rch VOL<L>

02H

Input selector

Rec output

Output

gain

Lch mute

Rch mute

03H

Bass

Surround

level

Mode selector

04H

Treble

0

0

0

Default values are all “0”.

3. Data Table

<1> Master Volume Control (Sub Address: 00H, 01H)

VOL<H>

VOL<L>

VOL

ATT

(dB)

D7

D6

D5

D4

VOL

ATT

(dB)

D3

D2

D1

D0

0

0

0

0

0

0

0

0

0

0

–10

0

0

0

1

–1

0

0

0

1

–20

0

0

1

0

–2

0

0

1

0

–30

0

0

1

1

–3

0

0

1

1

–40

0

1

0

0

–4

0

1

0

0

–50

0

1

0

1

–5

0

1

0

1

–60

0

1

1

0

–6

0

1

1

0

–70

0

1

1

1

–7

0

1

1

1

–80

1

0

0

0

–8

1

0

0

0

–9

1

0

0

1

Example: If the volume of the Lch is set to –28dB, the Data byte is transmitted as follows:

BIT

Sub

Address

D7

D6

D5

D4

D3

D2

D1

D0

00H

0

0

1

0

1

0

0

0