Title :
Design and Implementation of a Schedulable DMAC on an AMBA-Based SOPC Platform
Author :
Lin, Kuan Jen ; Huang, Chuang Hsiang ; Lo, Cheng Chia
Author_Institution :
Dept. of Electron. Eng., Fu Jen Catholic Univ., Taipei
Abstract :
A traditional DMA scheme hardly guarantees I/O throughput for real time multimedia applications. In this paper, we propose a novel SDMA (schedulable DMA) mechanism that guarantees real time I/O throughput and interrupts the CPU as few as possible. Furthermore, it can accept unscheduled requests and provide facility to treat unexpected delay to access I/O or memory. The controller handling the SDMA was successfully implemented on an AMBA-based SOPC platform. Experimental result shows that the SDMA has better performance than a traditional DMA
Keywords :
integrated memory circuits; processor scheduling; real-time systems; system-on-chip; AMBA-based SOPC platform; CPU; DMAC; I/O device; direct memory access; real time multimedia; real time system; schedulable DMA; Bandwidth; Bismuth; Delay; Design engineering; Multiaccess communication; Multimedia systems; Processor scheduling; Real time systems; Scheduling algorithm; Throughput; AMBA; DMA; I/O Device; Real time system; SOPC;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342405
