DA9068 datasheet(86/185 Pages) RENESAS

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DA9068

System PMIC for Multi-Core Application Processors

Datasheet

Revision 3.5

21-Feb-2022

CFR0011-120-00

86 of 184

7.8

Control Interface

DA9068 is completely SW-controlled from the host by registers and offers one serial control interface

(I2C) to access these registers. Data is shifted into or out from DA9068 under the control of the host

processor, which also provides the serial clock.

The DA9068 interface is a general purpose I2C interface that can operate in Fast Mode (up to

400 kHz) and High Speed Mode (up to 1.7 MHz) with external (system) pull-up resistors.

7.8.1

DA9068 2-Wire (I2C) Interface

SDA

SCL

SDA

Host

Processor

DA9068

VSYS

Figure 28: I2C Interface

Table 34: Serial Interface Pads

PAD Name

Interface

Type

PAD Description

SCL

I2C

General Purpose I2C CLOCK (external pull-up)

SDA

DIO

General Purpose I2C DATA (external pull-up)

CLK/SK

DATA/SO

tSTART_HOLD

tCLK_LO

tCLK_HI

tDATA_SETUP

tSTOP_SETUP

tDATA_HOLD

Figure 29: I2C Bus Timing

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