NXP MCF52258CAG66

MCF52258CAG66 Description

The MCF52258CAG66 is a ColdFire Microcontroller, CAN Controller, Coldfire V2 Family MCF5225x Series Microcontrollers. The MCF52259 microcontroller family (MCF52252, MCF52254, MCF52255, MCF52256, MCF52258, and MCF52259 devices) is a member of the ColdFire family of reduced instruction set computing (RISC) microprocessors.

This document provides an overview of the 32-bit MCF52259 microcontroller, focusing on its highly integrated and diverse feature set.

This 32-bit device is based on the Version 2 ColdFire core operating at a frequency up to 80 MHz, offering high performance and low power consumption. On-chip memories connected tightly to the processor core include up to 512 KB of flash memory and 64 KB of static random access memory (SRAM).

MCF52258CAG66 Features

• Power management

? Fully static operation with processor sleep and whole chip stop modes

? Rapid response to interrupts from the low-power sleep mode (wake-up feature)

? Clock enable/disable for each peripheral when not used (except backup watchdog timer)

? Software controlled disable of external clock output for low-power consumption

• FlexCAN 2.0B module

? Based on and includes all existing features of the Freescale TouCAN module

? Full implementation of the CAN protocol specification version 2.0B

? Standard data and remote frames (up to 109 bits long)

? Extended data and remote frames (up to 127 bits long)

? Zero to eight bytes data length

? Programmable bit rate up to 1 Mbit/s

? Flexible message buffers (MBs), totalling up to 16 message buffers of 0?8 byte data length each, configurable as Rx or Tx, all supporting standard and extended messages

? Unused MB space can be used as general purpose RAM space

? Listen-only mode capability

? Content-related addressing

? No read/write semaphores

? Three programmable mask registers: global for MBs 0?13, special for MB14, and special for MB15

? Programmable transmit-first scheme: lowest ID or lowest buffer number

? Time stamp based on 16-bit free-running timer

? Global network time, synchronized by a specific message

? Maskable interrupts

• System debug support

? Real-time trace for determining dynamic execution path 

? Background debug mode (BDM) for in-circuit debugging (DEBUG_B+)

? Real-time debug support, with six hardware breakpoints (4 PC, 1 address and 1 data) configurable into a 1- or 2-level trigger

• On-chip memories

? Up to 64 KB dual-ported SRAM on CPU internal bus, supporting core, DMA, and USB access with standby power supply support for the first 16 KB

? Up to 512 KB of interleaved flash memory supporting 2-1-1-1 accesses

• Version 2 ColdFire variable-length RISC processor core

? Static operation

? 32-bit address and data paths on-chip

? Up to 80 MHz processor core frequency

? 40 MHz or 33 MHz peripheral bus frequency

? Sixteen general-purpose, 32-bit data and address registers

? Implements ColdFire ISA_A with extensions to support the user stack pointer register and four new instructions for improved bit processing (ISA_A+)

? Enhanced Multiply-Accumulate (EMAC) unit with four 32-bit accumulators to support 16×16 ? 32 or 32×32 ? 48 operations

? Cryptographic Acceleration Unit (CAU)

? Tightly-coupled coprocessor to accelerate software-based encryption and message digest functions

? Support for DES, 3DES, AES, MD5, and SHA-1 algorithms

MCF52258CAG66 Applications

• Industrial

• Electricity Generation

• Heat Metering

• Office machines

• Appliances

• Power tools