The Delfino™ TMS320F2837xS is a powerful 32-bit
floating-point microcontroller unit (MCU) designed for advanced closed-loop control applications
drives and servo motor control;
inverters and converters;
line communications. Complete development packages for digital power and industrial drives
are available as part of the powerSUITE and
The real-time control subsystem is based on TI’s 32-bit C28x floating-point CPU, which
provides 200 MHz of signal processing performance. The C28x CPU is further boosted by
the new TMU accelerator, which enables fast execution of algorithms with trigonometric operations
common in transforms and torque loop calculations; and the VCU accelerator, which reduces the time
for complex math operations common in encoded applications.
The F2837xS microcontroller family features a CLA real-time control coprocessor. The
CLA is an independent 32-bit floating-point processor that runs at the same speed as the main CPU.
The CLA responds to peripheral triggers and executes code concurrently with the main C28x CPU. This
parallel processing capability can effectively double the computational performance of a real-time
control system. By using the CLA to service time-critical functions, the main C28x CPU is free to
perform other tasks, such as communications and diagnostics.
The TMS320F2837xS supports up to 1MB (512KW) of onboard flash memory with error
correction code (ECC) and up to 164KB (82KW) of SRAM. Two 128-bit secure zones are also available
on the CPU for code protection.
Performance analog and control peripherals are also integrated on the F2837xS MCU to
further enable system consolidation. Four independent 16-bit ADCs provide precise and efficient
management of multiple analog signals, which ultimately boosts system throughput. The new
sigma-delta filter module (SDFM) works in conjunction with the sigma-delta modulator to enable
isolated current shunt measurements. The Comparator Subsystem (CMPSS) with windowed comparators
allows for protection of power stages when current limit conditions are exceeded or not met. Other
analog and control peripherals include DACs, PWMs, eCAPs, eQEPs, and other peripherals.
Peripherals such as EMIFs, CAN modules
(ISO 11898-1/CAN 2.0B-compliant), and a new uPP interface extend the
connectivity of the F2837xS. The uPP interface is a new feature of the C2000™ MCUs and supports high-speed parallel connection to FPGAs or other
processors with similar uPP interfaces. Lastly, a USB 2.0 port with MAC and PHY lets users easily
add universal serial bus (USB) connectivity to their application.
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