The Future of Microcontrollers

Tony Kozaczuk, Director Architecture Solutions, Flex Logix
EETimes (11/16/2017 00:01 AM EST)

Integration of eFPGA into microcontrollers is happening today now that this technology is available from multiple suppliers in 180nm to 16nm process nodes.

Microcontrollers today have an issue and an opportunity.

The issue is that at older process nodes, there are dozens of SKUs of microcontrollers with small variations in the type and number of serial I/Os and/or hardware accelerators. At 40nm, the mask costs start to rise substantially so doing dozens of variations is an expensive proposition.

The opportunity for microcontrollers is around the “glue” FPGA chips used by designers for decades. If these FPGA chips are integrated instead of being standalone, customers can significantly improve the cost, speed and power consumption of MCUs. This is a huge value proposition.

While not a new technology, embedded FPGA (eFPGA) is finally at the stage where it is ready to go mainstream with multiple suppliers, design wins in progress and proven silicon. Customers can leverage this technology in a number of ways, such as:

• A reconfigurable accelerator that can directly access on-chip buses, cache and I/O. One mask can cover multiple needs and customers can achieve higher performance.
• A reconfigurable I/O that can implement any serial I/O and can push low-level processing to the I/O block. This frees up the processor and improves responsiveness and battery life.

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