Design And Implementation Of General AMC Board Based On FPGA

As the basic unit of MicroTCA system, AMC modules can achieve richfunctionality by means of configuring flexible module. Using the standard IPMIinterface, AMC modules can be used in low-cost, high-performancecommunication system with rich peripheral resources.As the core unit part the module management controller, the32-bitSTM32L151based on Cortex-M3has advantages of low power, low cost andhigh performance, its highest operating frequency reached72MHz, meanwhile itsupports multiple protocols. With the interfaces, EEPROM, temperature sensorsand other sensors, a variety of main functions such as health informationcollection, chips configuration and debugging can be implemented. Finally, theMicroTCA system will be controlled by MMC through the communication withIPMB bus.The kernel of function module is Xilinx Spartan6LX75T FPGA, whichimplemented data conversion and transmission. As a general AMC board, thefunction module has three characteristics. First, the series Rapid IO and GB-Ethernet protocols can be implemented between the FPGA and system, and therapid IO protocol which specified in the AMC3.0can achieve a maximumtransmission rate of3.125Gbps. Second, the function module provides rich clockresources and memory resources. For the clock, high-precision differentialoscillators and external PLL chip are used in the system. The barriers of clockcan be removed. For the ram, in order to solve the problem of small FPGAmemory and enhance the data processing capabilities, an external16bit SRAMchip is used in the system. Last, the function module provides a rich peripheralresources and expansion interface to increase the system applications. Forperipheral resources, it includes Gigabit Ethernet, serial USB interface, SD Card,JTAG interface. Both Ethernet and USB interface are equipped with physical layer chip. For expansion interfaces, a high-speed300-pin connector is equipped,the interface can choose single-ended or differential signals alternatively, andprovide rich voltage and clock resources. Based on the characteristics above, ahigh-performance, resource-rich general AMC board can be achieved.The test results show the performance of function modules and MMC modulemeet the expected design. We design a new generation general AMC board whichhas advantages of high control efficiency, high reliability, low power and highperformance.