STM32F410RB datasheet(28/142 Pages) STMICROELECTRONICS

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Functional overview

STM32F410x8/B

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DocID028094 Rev 5

3.21

Inter-integrated circuit interface (I2C)

The devices feature up to three I2C bus interfaces which can operate in multimaster and

slave modes:

•

One I2C interface supports the Standard mode (up to 100 kHz), Fast-mode (up to

400 kHz) modes and Fast-mode plus (up to 1 MHz).

•

Two I2C interfaces support the Standard mode (up to 100 KHz) and the Fast mode (up

to 400 KHz). Their frequency can be increased up to 1 MHz. For more details on the

complete solution, refer to the nearest STMicroelectronics sales office.

All I2C interfaces features 7/10-bit addressing mode and 7-bit addressing mode (as slave)

and embed a hardware CRC generation/verification.

They can be served by DMA and they support SMBus 2.0/PMBus.

The devices also include programmable analog and digital noise filters (see Table 6).

3.22

Universal synchronous/asynchronous receiver transmitters

(USART)

The devices embed three universal synchronous/asynchronous receiver transmitters

(USART1, USART2 and USART6).

These three interfaces provide asynchronous communication, IrDA SIR ENDEC support,

multiprocessor communication mode, single-wire half-duplex communication mode and

have LIN Master/Slave capability. The USART1 and USART6 interfaces are able to

communicate at speeds of up to 12.5 Mbit/s. The USART2 interface communicates at up to

6.25 bit/s.

USART1 and USART2 also provide hardware management of the CTS and RTS signals,

Smart Card mode (ISO 7816 compliant) and SPI-like communication capability. All

interfaces can be served by the DMA controller.

Table 6. Comparison of I2C analog and digital filters

Analog filter

Digital filter

Pulse width of

suppressed spikes

≥ 50 ns

Programmable length from 1 to 15 I2C peripheral clocks

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