STM32L443CC datasheet(56/215 Pages) STMICROELECTRONICS

Part #	STM32L443CC

Description	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, 256KB Flash, 64KB SRAM, USB FS, LCD, analog, audio, AES

PDF	215 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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56 / 215 page

Functional overview

STM32L443CC STM32L443RC STM32L443VC

56/215

DS11421 Rev 4

3.37

Development support

3.37.1

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.

3.37.2

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

STM32L443xx 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.

STM32L443CC Datasheet(PDF) 56 Page - STMicroelectronics