Examples

 QFI>FWC A 0 802	    Single word write of data '802' hex to CSR 0 at 
 		    primary address A (hex) in the local crate

 QFI>FWC 4010B 2 802 Single word write of data '802' hex to CSR 2 at 
 		    primary address B (hex) to a remote crate using 
 		    an SSP cable segment. See HELP ROUTING for 
 		    information on communication with remote crates.

 QFI>DEFINE C1 C0000001  Set up a definition of "C1" as C0000001 hex. 
 		(see HELP DEFINE for details)
 QFI>FWC TDC1 C1 A01
 		Single word write to CSR "C1" (defined above as 
 		C0000001) at primary address defined by "TDC1". 
 		"TDC1" is assumed to have been previously set up by 
 		a call to TREE or to FBWHO (see help TREE or FBWHO) 
 		and can be accessed by the 
 		SHODEF command.    The data written is A01 hex.