TIDUF56 January 2024
The TMS320F28P65x (F28P65x) is a member of the C2000™ real-time microcontroller family of scalable, ultra-low latency devices designed for efficiency in power electronics, including but not limited to: high power density, high switching frequencies, and supporting the use of IGBT, GaN, and SiC technologies.
The real-time control subsystem is based on TI’s 32-bit C28x DSP core, which provides 200 MIPS of signal processing performance in each core for floating- or fixed-point code running from either on-chip flash or SRAM. This is equivalent to the 400-MHz processing power on a Cortex®-M7 based device (C28x DSP core gives two times more performance than the Cortex®-M7 core).The C28x CPU is further boosted by the Trigonometric Math Unit (TMU) and Cyclical Redundancy Check (VCRC) extended instruction sets, speeding up common algorithms which are key to real-time control systems. Extended instruction sets enable IEEE double-precision 64-bit floating-point math. Finally, the Control Law Accelerator (CLA) enables an additional 200 MIPS per core of independent processing ability. This is equivalent to the 280-MHz processing power on a Arm® Cortex®-M7 based device (CLA CPU gives 40% more performance than the Cortex®-M7 core).
The F28P65x supports up to 1.28MB of flash memory and up to 248KB of on-chip SRAM is also available to supplement the flash memory.
High-performance analog blocks are tightly integrated with the processing and control units to provide excellent real-time signal chain performance. The Analog-to-Digital Converter (ADC) was enhanced with up to 40 analog channels, 22 of which have general-purpose input/output (GPIO) capability. Implementation of oversampling is greatly simplified with hardware improvement. For safety-critical ADC conversions, a hardware redundancy checker was added and provides the ability to compare ADC conversion results from multiple ADC modules for consistency without additional CPU cycles. Thirty-six frequency-independent PWMs, all with high-resolution capability, enable control of multiple power stages, from three-phase inverters to advanced multilevel power topologies. The PWMs were enhanced with Minimum Dead-Band Logic (MINDL) and Illegal Combo Logic (ICL) features.