A New Unicast-Based Multicast Scheme for Network-on-ChipRouter and Interconnect Testing
A New Unicast-Based Multicast Scheme for Network-on-ChipRouter and Interconnect Testing
复制标题
用于片上网络路由器和互连测试的新的基于单播的组播方案
DOI：
10.1145/2821506
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发表时间：
2016
影响因子：
1.4
通讯作者：
KELE SHEN
中科院分区：
文献类型：
--
作者：
DONG XIANG;KELE SHEN
片上网络（noc）的3D技术变得很有吸引力。提出一种有效的3D堆叠NOC路由器和互连测试方案具有重要意义。提出了一种对NOC路由器进行分类的测试方法。具有相同输入/输出端口数的路由器属于同一类。如果测试相同，则同一类的路由器是相同的。测试包通过基于单播的简单组播方案发送到所有相同的路由器。研究发现，由于路由器测试的测试申请和测试交付不能同时进行，每个路由器上的消耗缓冲区的深度对测试交付时间有很大的影响。测试交付必须将路由器设置为操作模式。提出了一个数学模型来评估消耗缓冲深度对测试交付时间的影响。提出了一种新的、简单的互连测试应用方案。为了进一步减少测试时间和考虑热因素，提出了一些有趣的扩展。通过与先前一种方法的比较，得到了充分的实验结果。该方法适用于路由器的单卡、转换甚至小延迟故障，以及物理、消耗和注入通道的单桥接故障。
3D technology for networks-on-chip (NOCs) becomes attractive. It is important to present an effective scheme for 3D stacked NOC router and interconnect testing. A new approach to testing of NOC routers is proposed by classifying the routers. Routers with the same number of input/output ports fall into the same class. Routers of the same class are identical if their tests are the same. A test packet is delivered to all the identical routers by a simple unicast-based multicast scheme. It is found that the depth of the consumption buffer at each router has great impact on the test delivery time because test application and test delivery for router testing cannot be handled concurrently. Test delivery must set a router to operational mode. A mathematical model is presented to evaluate the impact of consumption buffer depth on the test delivery time. A new and simple test application scheme is proposed for interconnect testing. Some interesting extensions are presented for further test time reduction and thermal considerations. Sufficient experimental results are presented by comparison with one previous method. The proposed method works for single stuck-at, transition, even small delay faults at routers, and single bridging faults at physical, consumption and injection channels.