56F8014

• Up to 32 MIPS at 32MHz core frequency
• DSP and MCU functionality in a unified,
   C-efficient architecture
• 16KB Program Flash
• 4KB Unified Data/Program RAM
• One 5-channel PWM module
• Two 4-channel 12-bit ADCs
• One Serial Communication Interface (SCI) with LIN
   slave functionality
• One Serial Peripheral Interface (SPI)
• One 16-bit Quad Timer
• One Inter-Integrated Circuit (I²C) Port
• Computer Operating Properly (COP)/Watchdog
• On-Chip Relaxation Oscillator
• Integrated Power-On Reset and Low-Voltage Interrupt
   Module
• JTAG/Enhanced On-Chip Emulation (OnCE™) for
   unobtrusive, real-time debugging
• Up to 26 GPIO lines
• 32-pin LQFP Package

The 56F8014 is a member of the 56800E core-based family of Digital Signal Controllers (DSCs). It combines, on a single chip, the processing power of a DSP and the functionality of a microcontroller with a flexible set of peripherals to create an extremely cost-effective solution. Because of its low cost, configuration flexibility, and compact program code, the 56F8014 is well-suited for many applications. The 56F8014 includes many peripherals that are especially useful for industrial control, motion control, home appliances, general purpose inverters, smart sensors, fire and security systems, power management, and medical monitoring applications.

The 56800E core is based on a Harvard-style architecture consisting of three execution units operating in parallel, allowing as many as six operations per instruction cycle. The MCU-style programming model and optimized instruction set allow straightforward generation of efficient, compact DSP and control code. The instruction set of 56F8014 is also highly efficient for C compilers to enable rapid development of optimized control applications.

The 56F8014 supports program execution from internal memories. Two data operands can be accessed from the on-chip data RAM per instruction cycle. The 56F8014 also offers up to 26 General Purpose Input/Output (GPIO) lines, depending on peripheral configuration.

The 56F8014 Digital Signal Controller includes 16KB of Program Flash and 4KB of Unified Data/Program RAM. Program Flash memory can be independently bulk erased or erased in pages. Program Flash page erase size is 512 Bytes/256 Words.

A key application-specific feature of the 56F8014 is the inclusion of one Pulse Width Modulator (PWM) module. This module incorporates three complementary, individually programmable PWM signal output pairs and is also capable of supporting five independent PWM functions to enhance motor control functionality. Complementary operation permits programmable dead time insertion, and separate top and bottom output polarity control. The up-counter value of 56F8014 is programmable to support a continuously variable PWM frequency. Edge-aligned and center-aligned synchronous pulse width control (0% to 100% modulation) is supported. The 56F8014 is capable of controlling most motor types: ACIM (AC Induction Motors), both BDC and BLDC (Brush and Brushless DC motors), SRM and VRM (Switched and Variable Reluctance Motors), and stepper motors. The PWM incorporates fault protection and cycle-by-cycle current limiting with sufficient output drive capability to directly drive standard optoisolators. A "smoke-inhibit", write-once protection feature for key parameters is also included. A patented PWM waveform distortion correction circuit is also provided. Each PWM of 56F8014 is double-buffered and includes interrupt controls to permit integral reload rates to be programmable from 1/2 (center-aligned mode only) to 16. The PWM module provides reference outputs to synchronize the Analog-to-Digital Converter (ADC) through Quad Timer, Channels 2 and 3.

This Digital Signal Controller 56F8014 also provides a full set of standard programmable peripherals that include one Serial Communications Interface (SCI), one Serial Peripheral Interface (SPI), one Quad Timer, and one Inter-Integrated Circuit (I2C) interface. Any of these interfaces can also be used as General Purpose Input/Outputs (GPIOs).