Texas Instruments TMS320F2837xS Delfino 32-Bit MCUs

Texas Instruments TMS320F2837xS Delfino 32-Bit Microcontrollers are powerful floating-point MCUs that lets designers consolidate control architectures. They also eliminate multiprocessor use in high-end systems. The real-time control subsystem is based on TI's 32-bit C28x floating-point CPU, which provides 200MHz of signal processing performance. The C28x CPU is further boosted by the new TMU accelerator. This enables fast execution of algorithms with trigonometric operations common in transforms and torque loop calculations. It also includes a VCU accelerator, which reduces the latency for complex math operations common in encoded applications. The F2837xS features a real-time control accelerator, also known as CLA. The CLA provides an additional floating-point accelerator used to run parallel time-critical control algorithms. This provides bandwidth for the C28x to focus on system tasks. The TMS320F2837xS supports up to 1MB of on-board flash memory with error correction code (ECC) and up to 164KB of SRAM. Two 128-bit secure zones are also available on the CPU for code protection.

Features

TMS320C28x 32-Bit CPU
- 200MHz
- IEEE 754 Single-Precision Floating-Point
- Trigonometric Math Unit (TMU)
- Viterbi/Complex Math Unit (VCU-II)
Programmable Control Law Accelerator (CLA)
- 200MHz
- IEEE 754 Single-Precision Floating-Point
- Executes Code Independently of Main CPU
On-Chip Memory
- 512KB (256KW) or 1MB (512KW) of Flash (ECC-Protected)
- 132KB (66KW) or 164KB (82KW) of RAM (ECC-Protected or Parity-Protected)
- Dual-Zone Security Supporting Third-Party Development
Clock and System Control
- Two Internal Zero-Pin 10MHz Oscillators
- On-Chip Crystal Oscillator and External Clock Input
- Windowed Watchdog Timer Module
- Missing Clock Detection Circuitry
1.2V Core, 3.3V I/O Design
System Peripherals
- Two External Memory Interfaces (EMIFs) With ASRAM and SDRAM Support
- 6-Channel Direct Memory Access (DMA) Controller
- Up to 169 Individually Programmable, Multiplexed General-Purpose Input/Output (GPIO) Pins With Input Filtering
- Expanded Peripheral Interrupt Controller (ePIE)
- Multiple Low-Power Mode Support With External Wakeup
Communications Peripherals
- USB 2.0 (MAC + PHY)
- Support for 12-Pin 3.3V-Compatible Universal Parallel Port (uPP) Interface
- Two Controller Area Network (CAN) Modules (Pin-Bootable)
- Three High-Speed (up to 50-MHz) SPI Ports (Pin-Bootable)
- Two Multichannel Buffered Serial Ports (McBSPs)
- Up to Four Serial Communications Interfaces (SCIs) (Pin-Bootable)
- Two I²C Interfaces (Pin-Bootable)

Analog Subsystem
- Up to Four Dual-Mode Analog-to-Digital Converters (ADCs)
- 16-Bit Mode
  - 1.1MSPS Each (up to 4.4MSPS System)
  - Differential
  - Up to 12 External Channels
- 12-Bit Mode
  - 3.5MSPS Each (up to 14MSPS System Throughput)
  - Single-Ended Inputs
  - Up to 24 External Channels
- Single Sample-and-Hold (S/H) on Each ADC
- HW Integrated Post-Processing of ADC Conversions
  - Saturating Offset Calibration
  - Error From Setpoint Calculation
  - High, Low, and Zero-Crossing Compare, With Interrupt Capability
  - Trigger-to-Sample Delay Capture
- Eight Windowed Comparators With 12-Bit Digital-to-Analog Converter (DAC) References
- Three 12-Bit Buffered DAC Outputs
Enhanced Control Peripherals
- 24 PWM Channels With Enhanced Features
- 16 High-Resolution Pulse Width Modulator (HRPWM) Channels
  - High Resolution on Both A and B Channels of 8 PWM Modules
  - Dead-Band Support (on Both Standard and High Resolution)
- Six Enhanced Capture (eCAP) Modules
- Three Enhanced Quadrature Encoder Pulse (eQEP) Modules
- Eight Sigma-Delta Filter Module (SDFM) Input Channels, 2 Parallel Filters per Channel
  - Standard SDFM Data Filtering
  - Comparator Filter for Fast Action for Out of Range