本标准规定了IEEE 1394接口上基于DV的25MB/s、50MB/s和100MB/s数据流的数据包格式和传输时间。本标准涵盖了用于传输DIF块的源数据包结构、CIP报头的定义、传输顺序和定时，并包括关于实时传输和快于实时传输的信息。

This standard specifies the packet format and transmission timing for DV-based 25 Mb/s, 50 Mb/s and 100 Mb/s data streams over an IEEE 1394 interface. This standard covers the source packet structure for transmitting the DIF blocks, the definition of a CIP header, the transmission order and timing, and includes information on both real time and faster than real time transmission.