Toshiba Electronic Components and Storage Devices Co., Ltd. ("Toshiba") announced today that the M4K group of the TXZ+family advanced series 32-bit microcontroller, which uses the Cortex-M4 core and is equipped with an FPU, has added 8 new products, with a flash memory capacity of 512 KB/1 MB, and offers 4 different packaging types.

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The continuous development of motor application functions supporting the Internet of Things requires larger programming capacity and better firmware OTA support.

Toshiba's newly launched M4K group product has expanded the maximum code flash memory capacity of existing products from 256 KB to 512 KB [1/1 MB [2] (specific capacity depends on the product), and the RAM capacity has also been expanded from 24 KB to 64 KB. While increasing capacity, other features have also been preserved, including the Arm Cortex-M4 kernel running at frequencies up to 160 MHz, integrated code flash, and 32 KB data flash with support for 100000 programming/write cycles.

In addition, the above microcontrollers also provide various interfaces and motor control options, including Advanced Programmable Motor Driver (A-PMD), Advanced 32-bit Encoder (A-ENC32), Advanced Vector Engine+(A-VE+), and three high-speed, high-resolution 12 bit analog-to-digital converter units. Therefore, the M4K group products will help expand the application of the Internet of Things and bring advanced features for AC motors, DC brushless motors, and frequency converter control.

The new product has implemented 1 MB of code flash memory in two independent 512 KB areas. In this way, firmware conversion can be achieved through memory swapping [3], which supports reading instructions from one region and parallel programming the updated code to another region.

The M4K group device integrates UART, TSPI, and I2C as a universal communication interface. The self diagnostic function integrated in flash memory, RAM, ADC, and clock devices helps customers pass IEC 60730 Class B functional safety certification.

At the same time, we also provide documentation, sample software with practical usage examples, and driver software to control each peripheral device interface. And jointly launch assessment boards and development environments with Arm's global ecosystem partners.

Toshiba also plans to increase the flash memory capacity of M4M group products that support CAN interfaces in the future.

Application:

-Motor and variable frequency control for consumer products and industrial equipment

-Consumer products, industrial equipment, and the Internet of Things

Features:

-High performance Cortex-M4 core equipped with FPU, with a maximum operating frequency of 160 MHz

-Higher memory capacity

Code flash memory: 512 KB/1 MB

RAM: 64 KB

-Memory swap firmware conversion function, supporting firmware updates while the microcontroller is continuously running [4]

-Self diagnostic function to achieve IEC 60730 Class B functional safety

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