Tessent SSN and Data Packets/Tessent SSN和数据包

The Tessent Scan Streaming Network (SSN) is a powerful tool that facilitates efficient testing of integrated circuits (ICs) by optimizing the delivery and management of test data. A crucial aspect of this technology is packetized data, which plays a key role in achieving streamlined test data delivery.

When sending test data through the SSN buses, Tessent divides and organizes the data into different packets. These packets are then transmitted through the SSN bus one at a time. This method ensures that test data is delivered in an ordered and deterministic fashion, allowing each core to retrieve the intended data from the packets. The construction of a packet considers many factors, including the IC design, test data requirements, and other testing or functional parameters. Tessent also has the capability to adjust the parameters of SSN buses based on the