single byte command code set (SBCCS)
The Single Byte Command Code Set (SBCCS) is an interface command set standardized by ANSI. It is often implemented in data processing systems with high performance, broadband I/O systems. It is also used on the physical layer of FC-PH for the functions and capabilities of ANSI X3.230 to implement the channel protocol, and used on Fibre Channel 4 (FC-4) of the FC layer model.