网络控制器和链路控制器的CPU即是通过读写双端口RAM芯片完成网络层与数据链路层的原语交互。mailbox中写入的是原语的类型，而双端口RAM的其它存储空间则存放各种服务原语的参数。-network controller and the CPU controller link is through reading and writing dual-port RAM chip to complete the network layer and data link layer of the orig

ARM读取从FPGA双口RAM读取AD采样1.7-ARM FPGA dual-port RAM read to read from the AD sample 1.7

LPC1768-Xplorer is a CORTEX-M3 based stamp board for NGX’s mbed-Xpresso Baseboard. The LPC1768 microcontroller has 512KB of internal flash and 64KB RAM. Ethernet MAC, USB Device/Host/OTG interface, 8-channel general purpose DMA controller, 4 UARTs, 2