M62420FP データシートの表示（PDF） - Renesas Electronics

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M62420FP

2ch Electronic Volume with Tone by I2C Bus System

Renesas Electronics 

M62420SP/ FP/ AFP

DATA and CLOCK

S D A (IN)

SCL

1

S D A (OUT)

S

start

2~7

8

9

ACK

acknowledge

P

stop

start

This term is defined by SDA(in) falling edge at SCL H .

stop

This term is defined by SDA(in) rising edge at SCL H .

CAUTION

The SDA(IN) level never change at SCK=H

except start and stop .

data transmisson

The SDA(IN) is enabled at SCL rising edge and H .

acknowledge

Transmitter must send H during ninth clock pulse of SCL .

The case of finished receiving , the receiver replies L synchronized to

falling edge of eighth pulse . And restart receiving the transmitted data

synchronized to falling edge of ninth pulse .

Rev.1.0, Sep.17.2003, page 10 of 16

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