STM32G0C1NET3 datasheet(33/159 Pages) STMICROELECTRONICS

33 / 159 page

DS13564 Rev 4

33/159

STM32G0C1xC/xE

Functional overview

Features of the I2C peripheral:

•

I2C-bus specification and user manual rev. 5 compatibility:

–

Slave and master modes, multimaster capability

–

Standard-mode (Sm), with a bitrate up to 100 kbit/s

–

Fast-mode (Fm), with a bitrate up to 400 kbit/s

–

Fast-mode Plus (Fm+), with a bitrate up to 1 Mbit/s and extra output drive I/Os

–

7-bit and 10-bit addressing mode, multiple 7-bit slave addresses

–

Programmable setup and hold times

–

Clock stretching

•

SMBus specification rev 3.0 compatibility:

–

Hardware PEC (packet error checking) generation and verification with ACK

control

–

Command and data acknowledge control

–

Address resolution protocol (ARP) support

–

Host and Device support

–

SMBus alert

–

Timeouts and idle condition detection

•

PMBus rev 1.3 standard compatibility

•

Independent clock: a choice of independent clock sources allowing the I2C

communication speed to be independent of the PCLK reprogramming

•

Wakeup from Stop mode on address match

•

Programmable analog and digital noise filters

•

1-byte buffer with DMA capability

3.23

Universal synchronous/asynchronous receiver transmitter

(USART)

The device embeds universal synchronous/asynchronous receivers/transmitters that

communicate at speeds of up to 8 Mbit/s.

Table 8. I2C implementation

I2C features(1)

1. X: supported

I2C1

I2C2

I2C3

Standard mode (up to 100 kbit/s)

Fast mode (up to 400 kbit/s)

Fast Mode Plus (up to 1 Mbit/s) with extra output drive I/Os

Programmable analog and digital noise filters

SMBus/PMBus hardware support

Independent clock

Wakeup from Stop mode on address match

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