MPC57xx Nexus Debug Connectors: Including the Nexus Aurora Interface for the Automotive MCU Power Architecture
●The MPC5744P is the first automotive microcontroller in the MPC57xx family that implements a Nexus high-speed serial¹ (Aurora) trace Auxiliary Output port (AUX) on the production device, in addition to the traditional Nexus parallel Auxiliary Port. The IEEE-ISTO 5001™-2012 standard defines the methodology for embedding the Nexus messages in the Xilinx Aurora protocol transport layer. Additionally, it supports a JTAG run control based either the IEEE 1149.1. Many devices in the MPC57xx family of devices also support the IEEE 1149.7 interface for run control and device access.
●The Nexus parallel Auxiliary port on the MPC5744P is the same as implemented on previous MPC5500 and MPC5600 families of devices. The Aurora based serial Auxiliary port is new. It consists of the serial Aux physical interfaces and consists of two2 LVDS, 3 lanes. To minimize the cost impact of the Nexus Aurora trace port, an external LVDS clock, running at the desired trace frequency, is required to be provided by the tool. (This prevents the requirement to instantiate a dedicated, precision Phase Lock Loop (PLL) in the device to support the trace functions.) Trace clock frequencies between 625 MHz and 1.25 GHz are supported.
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MPC57xx 、 MPC5744P 、 MPC5746R 、 MPC577xK 、 MPC5777C 、 MPC5777M 、 MPC574xG 、 MPC574xC |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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March 2015 |
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Rev 0 |
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AN4224 |
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375 KB |
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