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프리페치 요구를 지원하는 PCI 2.2 타겟 컨트롤러 설계 및 검증

Title
프리페치 요구를 지원하는 PCI 2.2 타겟 컨트롤러 설계 및 검증
Translated Title
Design and Verification of PCI 2.2 Target Controller to support Prefetch Request
Authors
현유진성광수
DGIST Authors
현유진
Issue Date
2005
Citation
정보처리학회논문지. 컴퓨터 및 통신시스템, 12(7), 523-530
Type
Article
Keywords
PCIPCI 2.2ControllerPrefetchVerification컨트롤러프리페치검증
ISSN
2287-5891
Abstract
When a PCI 2.2 bus master requests data using Memory Read command, a target device may hold PCI bus without data to be transferred for long time because a target device needs time to prepare data internally. Because the usage efficiency of the PCI bus and the data transfer efficiency are decreased due to this situation, the PCI specification recommends to use the Delayed Transaction mechanism to improve the system performance. But the mechanism cann't fully improve performance because a target device doesn't know the exact size of prefetched data. In the previous work, we propose a new method called Prefetch Request when a bus master intends to read data from the target device. In this paper, we design PCI 2.2 controller and local device that support the proposed method. The designed PCI 2.2 controller has simple local interface and it is used to convert the PCI protocol into the local protocol. So the typical users, who don't know the PCI protocol, can easily design the PCI target device using the proposed PCI controller. We propose the basic behavioral verification, hardware design verification, and random test verification to verify the designed hardware. We also build the test bench and define assembler instructions. And we propose random testing environment, which consist of reference model, random generator, and compare engine, to efficiently verify corner case. This verification environment is excellent to find error which is not detected by general test vector. Also, the simulation under the proposed test environment shows that the proposed method has the higher data transfer efficiency than the Delayed Transaction about 9%.
URI
http://hdl.handle.net/20.500.11750/5769
Publisher
한국정보처리학회
Related Researcher
  • Author Hyun, Eugin  
  • Research Interests Radar system, Radar signal processing, Automotive radar, Surveillance radar, Commercial radar, Defence radar,
Files:
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Collection:
Convergence Research Center for Future Automotive Technology1. Journal Articles


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