STM32F042F4 datasheet(26/117 Pages) STMICROELECTRONICS

26 / 117 page

Functional overview

STM32F042x4 STM32F042x6

26/117

DocID025832 Rev 5

3.16

Serial peripheral interface (SPI) / Inter-integrated sound

interface (I2S)

Up to two 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.

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.

3.17

High-definition multimedia interface (HDMI) - consumer

electronics control (CEC)

The device embeds a HDMI-CEC controller that provides hardware support for the

Consumer Electronics Control (CEC) protocol (Supplement 1 to the HDMI standard).

This protocol provides high-level control functions between all audiovisual products in an

environment. It is specified to operate at low speeds with minimum processing and memory

overhead. It has a clock domain independent from the CPU clock, allowing the HDMI_CEC

controller to wakeup the MCU from Stop mode on data reception.

3.18

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

Modbus communication

Auto baud rate detection

Driver Enable

1. X = supported.

Table 10. STM32F042x4/x6 USART implementation (continued)

USART modes/features(1)

USART1

USART2

Table 11. STM32F042x4/x6 SPI/I2S implementation

SPI features(1)

1. X = supported.

SPI1

SPI2

Hardware CRC calculation

Rx/Tx FIFO

NSS pulse mode

I2S mode

TI mode

STM32F042F4 датащи(PDF) 26 Page - STMicroelectronics

STM32F042F4 датащи(HTML) 26 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL