FreescaleMPC5668G汽车网关解决方案

FreescaleMPC5668G汽车网关解决方案

汽车网关汽车网关汽车网关和车体控制模块和中央网关.本文介绍了MPC5668x主要特性,方框图以及MPC5668G评估板(EVB)主要特性和详细电路图.Electronic content in vehicles keeps increasing. A number of different communication protocols, including consumer protocols making their way into the automotive market, keep these electronic components working together.The 32-bit Qorivva MPC5668G MCU, built on dual core Power Architecture® technology, connects all the possible communication protocols you can find in a car at one single point. The dual-core architecture provides the performance throughput needed to maintain real-time operation backed-up by a strong third-party ecosystem support.MPC5668x主要特性:• 32-bit CPU core complex (e200z650)– Compliant with Power Architecture embedded category– 32 KB unified cache with line locking and eight-entry store buffer16– Execution speed static to 116 MHz• 32-bit I/O processor (e200z0)– Execution speed static to 1/2 CPU core speed (58 MHz)• 2 MB on-chip flash– Supports read during program and erase operations, and multiple blocks allowing EEPROM emulation• 512 KB + 80 KB (592 KB) on-chip ECC SRAM (MPC5668G)• 128 KB on-chip ECC SRAM (MPC5668E)• 16-entry Memory Protection Unit (MPC5668E only)• Direct memory access controller– 16-channel on MPC5668G– 32-channel on MPC5668E• Fast ethernet controller– Supports 10-Mbps and 100-Mbps IEEE 802.3 MII, 10-Mbps 7-wire interface– IEEE 802.3 MAC (compliant with IEEE 802.3 1998 edition)• Media Local Bus (MLB) interface (MPC5668G only)– Supports 16 logical channels, max speed 1024 Fs• Interrupt controller (INTC) supports 316 external interrupt vectors (22 are reserved)• System clocks– Frequency-modulated phase-locked loop (FMPLL)– 4 – 40 MHz crystal oscillator (XTAL)–

32 kHz crystal oscillator (XTAL)– Dedicated 16 MHz and 128 kHz internal RC oscillators• Analog to Digital Converter (ADC) module– 10-bit A/D resolution– 32 external channels– 36 internal channels (MPC5668G)–

64 internal channels (MPC5668E)• Cross-Triggering Unit (MPC5668E only)– Internal conversion triggering for ADC– Triggerable by internal timers or eMIOS200• Deserial Serial Peripheral Interface (DSPI)– Four individual DSPI modules– Full duplex, synchronous transfers– Master or slave operation• Inter-IC communication (I2C) interface– Four individual I2C modules– Multi-master operation• Serial Communication Interface (eSCI) module– Two-channel DMA interface– Configurable as LIN bus master• eMIOS200 timed input/output– 24 channels, 16-bit timers (MPC5668G)– 32 channels, 16-bit timers (MPC5668E)• Controller Area Network (FlexCAN) module– Compliant with CAN protocol specification, Version 2.0B active–

64 mailboxes, each configurable as transmit or receive• Dual-channel FlexRay controller– Full implementation of FlexRay Protocol Specification 2.1, RevA– 128 message buffers• JTAG controller (MPC5668G only)– Compliant with the IEEE 1149.1-2001• Nexus Development Interface (NDI)– Available in 256 MAPBGA package only– Compliant with IEEE-ISTO 5001-2003– Nexus class 3 development support on e200z650– Nexus class 2+ development support on e200z0• Internal voltage regulator allows operation from single3.3