Freescale's MPC5668x family is a Qorivva dual-core 32-bit MCU that integrates FlexRay, Ethernet and media local bus. The MPC5668x family is compatible with 32-bit CPU cores (e200z650) and Power Architecture, with speeds up to 116MHz, 2MB flash, Nexus Development Interface (NDI) and IEEE-ISTO 5001-2003, primarily for automotive gateways and body control modules. And a central gateway.
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The electronic content in automotive products is constantly increasing. A variety of communication protocols, including consumer protocols, allow them to penetrate the automotive market and allow these electronic components to work together.
The 32-bit Qorivva MPC5668G MCU, with dual-core Power Architecture technology, connects all the communication protocols found in the automotive field at a single point. The dual-core architecture provides the performance needed to maintain real-time operation and is supported by a powerful third-party ecosystem.
Figure 1 MPC5668G block diagram
MPC5668x main features
• Complex 32-bit CPU core (e200z650)
– Compliance with the Power Architecture embedded catalog
– 32kB standard fast buffer with line lock and 8 memory buffers 16
– Execution speed is static to 116 MHz
• 32-bit I/O processor (e200z0)
– Execution speed to 1/2 CPU core speed (58MHz)
• 2MB on-chip flash memory
– Support for reading during programming and erasing operations, multiple modules also allowing EEPROM emulation
• 512kB+80kB (592kB) on-chip ECC SRAM (MPC5668G)
• 128kB on-chip ECC SRAM (MPC5668E)
• 16 memory protection units (MPC5668E only)
• Direct memory access controller
– 16 channels on the MPC5668G
– 32 channels on the MPC5668E
• Fast Ethernet Controller
– Supports 10Mbps and 100-Mbps IEEE 802.3 MII, 10Mbps 7-wire interface
– IEEE 802.3 MAC (in accordance with IEEE 802.3 1998 version)
• Media Local Bus (MLB) interface (MPC5668G only)
– Supports 16 logical channels with a maximum speed of 1024 Fs
• Interrupt controller (INTC) supports 316 external interrupt vectors (22 saved)
• System clock
Figure 2 MPC5668E block diagram
– Modulated frequency phase locked loop (FMPLL)
– 4MHz~40 MHz crystal oscillator (XTAL)
– 32 kHz crystal oscillator (XTAL)
– Dedicated 16 MHz to 128 kHz internal RC oscillator
• Analog to Digital Converter (ADC) Module
– 10-bit A/D resolution
– 32 external channels
– 36 internal channels (MPC5668G)
– 64 external channels (MPC5668E)
• Cross trigger unit (MPC5668E only)
– Internal conversion trigger for ADC
– can be triggered by an internal timer or eMIOS200
• Continuous Serial Peripheral Interface (DSPI)
– four separate DSPI modules
– full duplex, synchronous transmission
– Master mode or Slave mode operation
• Intra-IC communication (I2C) interface
– four separate I2C modules
– more from the main operation
• Serial Communication Interface (eSCI) Module
– Dual channel DMA interface
– configurable as LIN main line
• eMIOS200 timing input/output
– 24 channel, 16-bit timer (MPC5668G)
– 32-channel, 16-bit timer (MPC5668E)
• Controller Area Network (FlexCAN) Module
– Compliance with CAN protocol specifications, version 2.0B is valid
– 64 mailboxes, each configurable to transmit or receive
• Dual channel lexRay controller
– lexRay protocol specification 1, full implementation of version A
– 128 message buffer
• JTAG controller (MPC5668G only)
– in accordance with IEEE 1149.1-2001
• Nexus Development Interface (NDI)
– only available in 256 MAPBGA package
– in accordance with IEEE-ISTO 5001-2003 requirements
– Support for Nexus Level 3 development on the e200z650
– Support for Nexus 2+ level development on the e200z0
• Internal regulator allows operation from the unit
• 3.3 V or 5 V power supply
MPC5668x target application
• Car Gateway
• Body control module and central gateway
Figure 3 MPC5668G evaluation board (EVB) functional block diagram
MPC5668G Evaluation Board
The MPC5668 Evaluation Board (hereafter referred to as EVB) provides a simple customer evaluation method for the MPC5668 family of microcontrollers and can facilitate hardware and software development.
The MPC5668 series is available in a 208MAPBGA package. The 256MAPBGA package supporting Nexus debugging is also available for development.
The EVB is primarily intended for test benches/labs and has used the normal temperatures specified by the components. (+70 ° C). Main features of the MPC5668G evaluation board
EVB offers the following key features:
• MCU slot supports 208BGA production package and 256BGA development package
• A separate 12V~14V external power input with on-board debugger provides all required EVB and MCU voltages, which can be supplied via a 2.1mm cylindrical power outlet and 2-way connector, if needed, in the car 12V operating voltage can be used inside
• Flexible on-board power configuration with optional internal MCU regulator bypass if required
• Main Power Switch and Regulator Status LED—The regulator is connected to the ADC to allow for monitoring.
• User reset conversion with reset status LED
• User configurable low voltage rejection to monitor the status of 3.3V and 5V regulators
• Control BOOTCFG status via a dedicated jumper
• Flexible MCU clock options
– 40MH oscillator crystal
– 32Khz clock crystal
– SMA connector to allow support for external clocks
– 8Mhz oscillator circuit
• SMA connector on MCU-CLKOUT signal for easy access
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