STM32L4A6RG datasheet(61/282 Pages) STMICROELECTRONICS

номер детали	STM32L4A6RG

подробное описание детали	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, 1MB Flash, 320KB SRAM, USB OTG FS, audio, AESHASH, ext. SMPS

PDF	282 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

Logo

61 / 282 page

DS11584 Rev 8

61/282

STM32L4A6xG

Functional overview

3.43

Development support

3.43.1

Serial wire JTAG debug port (SWJ-DP)

The Arm® SWJ-DP interface is embedded, and is a combined JTAG and serial wire debug

port that enables either a serial wire debug or a JTAG probe to be connected to the target.

Debug is performed using 2 pins only instead of 5 required by the JTAG (JTAG pins could

be re-use as GPIO with alternate function): the JTAG TMS and TCK pins are shared with

SWDIO and SWCLK, respectively, and a specific sequence on the TMS pin is used to

switch between JTAG-DP and SW-DP.

3.43.2

Embedded Trace Macrocell™

The Arm® Embedded Trace Macrocell™ provides a greater visibility of the instruction and

data flow inside the CPU core by streaming compressed data at a very high rate from the

STM32L4A6xG through a small number of ETM pins to an external hardware trace port

analyzer (TPA) device. Real-time instruction and data flow activity be recorded and then

formatted for display on the host computer that runs the debugger software. TPA hardware

is commercially available from common development tool vendors.

The Embedded Trace Macrocell™ operates with third party debugger software tools.

STM32L4A6RG датащи(PDF) 61 Page - STMicroelectronics