Design of DMA controller for multichannel PCI bus frame engine and data link manager

A new kind of PCI (Peripheral Component Interconnect) DMAC (direct memory access controller) is presented in this paper. It's an important part of "PCI bus HDLC frame engine and data link manager". Based on an instruction optimized embedded microprocessor, DMAC can meet the latency requirement perfectly with reasonable chip resources. The whole design is verified with Xilinx FPGA.