STM32F038X6 datasheet(21/102 Pages) STMICROELECTRONICS

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STM32F038x6

Functional overview

3.15

Serial peripheral interface (SPI) / Inter-integrated sound

interface (I2S)

The SPI is 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.

One standard I2S interface (multiplexed with SPI1) supporting four different audio standards

can operate as master or slave at half-duplex communication mode. It 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 an 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.

Table 8. STM32F038x6 USART implementation

USART modes/features(1)

1. X = supported.

USART1

Hardware flow control for modem

Continuous communication using DMA

Multiprocessor communication

Synchronous mode

Smartcard mode

Single-wire half-duplex communication

IrDA SIR ENDEC block

LIN mode

Dual clock domain and wakeup from Stop mode

Receiver timeout interrupt

Modbus communication

Auto baud rate detection

Driver Enable

Table 9. STM32F038x6 SPI/I2S implementation

SPI features(1)

1. X = supported.

SPI

Hardware CRC calculation

Rx/Tx FIFO

NSS pulse mode

I2S mode

TI mode

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