globID	super		localID	canonical	footprint-frame
[global channel entries]
1	(top)	-	1	dataless[0][0]	chan()
2	(top)	-	2	dataless[0][1]	chan()
3	(top)	-	3	dataless[0][2]	chan()
4	(top)	-	4	dataless[1][0]	chan()
5	(top)	-	5	dataless[1][1]	chan()
6	(top)	-	6	dataless[1][2]	chan()
