Datasheet

ManualsBrandsST ManualsEmbedded Processors & ControllersMicrocontroller 32bit 2MB LQFP

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STM32H743xI Functional overview

The devices include the following features:

• Supports 10 and 100 Mbit/s rates

• Dedicated DMA controller allowing high-speed transfers between the dedicated SRAM

and the descriptors

• Tagged MAC frame support (VLAN support)

• Half-duplex (CSMA/CD) and full-duplex operation

• MAC control sublayer (control frames) support

• 32-bit CRC generation and removal

• Several address filtering modes for physical and multicast address (multicast and

group addresses)

• 32-bit status code for each transmitted or received frame

• Internal FIFOs to buffer transmit and receive frames. The transmit FIFO and the

receive FIFO are both 2 Kbytes.

• Supports hardware PTP (precision time protocol) in accordance with IEEE 1588 2008

(PTP V2) with the time stamp comparator connected to the TIM2 input

• Triggers interrupt when system time becomes greater than target time

3.42 High-definition multimedia interface (HDMI)

- consumer electronics control (CEC)

The devices embed 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

nvironment. 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.

3.43 Debug infrastructure

The devices offer a comprehensive set of debug and trace features to support software

development and system integration.

• Bre

akpoint debugging

• Code execution tracing

• Software instrumentation

• JTAG debug port

• Serial-wire debug port

• Trigger input and output

• Serial-wire trace port

• Trace port

• Arm

CoreSight™ debug and trace components

The debug can be controlled via a JTAG/Serial-wire debug access port, using industry

stand

ard debugging tools.

The trace port performs data capture for logging and analysis.

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