STM32F398VE datasheet(28/151 Pages) STMICROELECTRONICS

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Functional overview

STM32F398VE

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DocID027227 Rev 2

3.23

Serial peripheral interface (SPI)/Inter-integrated sound

interfaces (I2S)

Up to four SPIs are able to communicate up to 18 Mbit/s in slave and master modes in full-

duplex and half-duplex communication modes. The 3-bit prescaler gives 8 master mode

frequencies and the frame size is configurable from 4 bits to 16 bits.

Two standard I2S interfaces (multiplexed with SPI2 and SPI3) supporting four different

audio standards can operate as master or slave at half-duplex and full duplex

communication modes. They can be configured to transfer 16 and 24 or 32 bits with 16-bit

or 32-bit data resolution and synchronized by a specific signal. Audio sampling frequency

from 8 kHz up to 192 kHz can be set by 8-bit programmable linear prescaler. When

operating in master mode it can output a clock for an external audio component at 256 times

the sampling frequency.

Refer to Table 8 for the features available in SPI1, SPI2, SPI3 and SPI4.

3.24

Controller area network (CAN)

The CAN is compliant with specifications 2.0A and B (active) with a bit rate up to 1 Mbit/s. It

can receive and transmit standard frames with 11-bit identifiers as well as extended frames

with 29-bit identifiers. It has three transmit mailboxes, two receive FIFOs with 3 stages and

14 scalable filter banks.

Table 8. STM32F398VE SPI/I2S implementation

SPI features(1)

SPI1

SPI2

SPI3

SPI4

Hardware CRC calculation

XXXX

Rx/Tx FIFO

XXXX

NSS pulse mode

XXXX

I2S mode

TI mode

XXXX

1. X = supported.

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