However, most available memory access controllers only support mappings of up to 32 Mbit.
The main memory access control unit and the original memory system organization are described.
An imaging application that has a direct memory access (DMA) controller to move large amounts of data around will not need as much processor horsepower as one that has to move the data in software.
The configurable array processor (CAP) is an array of heterogeneous processing elements (PEs), while the intelligent configurable switch (ICS) comprises a switch block, 32-bit dedicated RISC processor for control, on-chip program/data memory, data frame buffer, along with a direct memory access (DMA) controller.
In addition to the microprocessor and memory, embedded systems generally have a mix of hardware functions such as timers, interrupt controllers, UARTs, general-purpose input and output (GPIO) pins, direct memory access (DMA) controllers, real time clocks, and liquid crystal display (LCD) controllers.
Video buffers are stored in a DDR-SDRAM, and memory access is implemented with the multi-port memory controller (MPMC) Xilinx fast memory controller.
Thus, the input controller consists of a direct memory access interface that autonomously reads the images pre-loaded into the shared memory.
Bearing in mind that hardware designs in FPGA technology are generally slower than memory chips, it is feasible to build a memory access scheduler by using a suitable arbitration scheme based on a fast memory controller with AAPs running at slower frequencies.
We developed a point-to-point, low latency, 3D torus Network Controller integrated in an FPGA-based PCIe board which implements a Remote Direct Memory Access (RDMA) communication protocol.
