#PCIE# PCIe literacy-link initialization and training basics (2)
tags: PCI-e
As mentioned in the previous article, there are the following types of Ordered Sets: TS1 and TS2 Ordered Set (TS1OS/TS2OS), Electrical Idle Ordered Set (EIOS), FTS Ordered Set (FTSOS), SKP Ordered Set (SOS), and Electrical Idle Exit Ordered Set (EIEOS).It is mainly used for link initialization and training functions. Before introducing LTSSM, let's briefly introduce TS1OS and TS2OS in Ordered Sets.
TS1OS and TS2OS are similarly composed of 16 symbols (10bit, Byte after 8b/10b encoding), and the structure diagram is shown in the following figure:
Among them, the details of TS1OS are described in the following table:
The details of TS2OS are shown in the figure below:
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