Method of programming a DMA controller in an on-chip system and the associated on-chip system

摘要

The method involves translating a virtual address, by a memory management unit (MMU) (4), into a physical address, in response to a translate instruction of a user program. The physical address and a word having most significant bits indicating a sub-base address are placed on an address bus (BA), in response to a storeDMA instruction. The physical address is stored in one of source and destination registers (14, 15) based on the word. An independent claim is also included for a system on chip including a direct memory access (DMA) controller connected to an address bus and a data bus.