RT1716WSC datasheet(13/37 Pages) RICHTEK

13 / 37 page

RT1716

DS1716-04

March 2020

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I2C Interface

The following table shows the RT1716 unique address as below.

RT1716 I

2C Slave Address

MSB

LSB

R/W bit

R/W

100111

1/0

9D/9C

The I2C interface bus must be connect a resistor 1k

Ω to power node and independent connection to processor, individually.

The I2C timing diagrams are listed below.

I2C Waveform Information

LSB

MSB

Assume Address = m

Data for Address = m

Data for Address = m + N - 1

Data for Address = m + 1

Slave Address

Data 1

R/W

Read N bytes of data from Registers

LSB

MSB

Data 2

Data N

LSB

MSB

LSB

MSB

Assume Address = m

Data for Address = m

Slave Address

Data

R/W

Read single byte of data from Register

Assume Address = m

Data for Address = m

Data for Address = m + N - 1

Data for Address = m + 1

R/W

Data N

LSB

MSB

LSB

Slave Address

Data 1

Data 2

MSB

LSB

Write N bytes of data to Registers

Driven by Master,

Driven by Slave,

Start,

Repeat Start

Stop,

Assume Address = m

Data for Address = m

R/W

Slave Address

Data

MSB

LSB

Write single byte of data to Register

Read and Write Function

SDA

SCL

tLOW

tHD;STA

tHD;DAT

tHIGH

tSU;DAT

tSU;STA

tHD;STA

tSP

tBUF

tSU;STO

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