Modular direct memory access system

摘要

One embodiment relates to an integrated circuit with a modular direct memory access system. A read data mover receives data obtained from a source address, and a write data mover for sends the data to a destination address. A descriptor controller provides the source address to the read data mover and the destination address to the write data mover. Another embodiment relates to a method of providing direct memory access. Another embodiment relates to a system which provides direct memory access. Other embodiments and features are also disclosed.

主权项

1. An integrated circuit with a modular direct memory access system, the integrated circuit comprising:
a read data mover for receiving data obtained from an original source address; a write data mover for sending the data to a final destination address; and a descriptor controller for providing the original source address to the read data mover and the final destination address to the write data mover, wherein the descriptor controller comprises circuitry electronically programmed to cause the read data mover to copy a descriptor table from memory of a root complex to local memory in the integrated circuit, wherein the descriptor table includes at least one descriptor, and wherein said at least one descriptor comprises an original source address, a final destination address, and a length of the data.