ARM® Cortex®-M4 microcontrollers target motor control

August 02, 2021 // By Jean-Pierre Joosting
ARM® Cortex®-M4 microcontrollers target motor control
The microcontrollers products in the TXZ+™ family integrate an advance-programmable motor driver and 32-bit advanced encoder.

Toshiba Electronics Europe GmbH has announced mass production of 12 new motor control microcontrollers (MCUs) in their M4K group of devices. These will be the very first products in the new advanced TXZ+™ family. Additionally, Toshiba announced that they will start mass production of a further 10 motor control MCUs in their M4M group in July 2021. All of the new devices will be manufactured in a 40nm process, and form part of Toshiba’s TXZ4A+ series.

All of the products announced are based upon an ARM® Cortex®-M4 core with floating-point unit (FPU) and memory protection unit (MPU), running at speeds up to 160 MHz. The devices integrate an advance-programmable motor driver (A-PMD), 32-bit advanced encoder (A-ENC), an advanced vector engine plus (A-VE+) and a maximum of three channels of high-speed and high-resolution 12-bit analog/digital converters. As a result, these devices are ideally suited for field-oriented control (FOC) of up to three AC motors, brushless DC (BLDC) motors and multiple types of inverter control such as variable frequency drives or servo drives.

The MCUs have onboard flash memory for code (128kB/256kB) and 32kB for data as well as a further 24kB of general RAM along with a DMA controller (DMAC). A total of six 32-bit timers are included, which can be operated as 12 16-bit timers if desired. The analog section has a 12-bit AD converter (ADC) with up to 22 input channels as well as three op-amp channels.

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