The PCIEbus D decode annotation option is available for most Teledyne LeCroy oscilloscopes. It permits link layer decoding of 2.5, 5, and 8 Gb/s PCI Express physical layer signals. Decode information is annotated on the physical layer waveform. Various sections of the protocol are color-coded to make it easy to understand the protocol traffic. All protocol traffic is also displayed in a table, and a wide variety of search functionality is also included.