Start of Frame Signal - 1.0 English

AXI4-Stream Video IP and System Design Guide (UG934)

Document ID
UG934
Release Date
2022-11-16
Version
1.0 English

The start of frame ( SOF ) signal is physically transmitted over the AXI4-Stream TUSER0 signal, and signifies the first pixel of a video field or frame. The SOF pulse is one valid transaction wide, and must coincide with the first pixel of the field or frame ( This Figure ). SOF functions as a frame synchronization signal, allowing downstream cores to reinitialize, and detect the first pixel of a field or frame.