In order to meet the increased demand of having an inexpensive but sophisticated Motor control in White Goods, Toshiba has developed a line-up of MCUs with a special Hardware logic to drive Inverter type Motors. Those types of MCUs are named PMD (Programmable Motor Driver) and can control up to two Motors simultaneously as required e.g. in Air conditioners. 

The TMPM370FY is ideal for motion control in home appliances and industrial applications where it reduces the need for additional components while providing significant benefits over software-based vector control running on a microcontroller.  Read more...

The PMDs are divided into two segments:-

• Standard Motor control MCUs are generally seen in the market with 6 channel PWM output signal.
• Sine-Wave PMDs are more "intelligent" with a highly developed Motor control unit that provides a lot of additional features such as a sine-wave arithmetic circuit.

Easy solutions for complex inverter designs - MCU motor control brochure (440KB pdf)

A further technical paper explains the major characteristics of Toshiba PMD MCUs:

Technical paper in English (doc 812KB)
Technical paper in German (doc 769KB)