Net Generation Scenarios

When you short a bus/NetGroup to a bus/NetGroup, the short will result in:

a resultant object (bus or NetGroup)
a winning bus
the flat nets generated from the short
the associated NetGroup definition (in case a NetGroup is involved in the short)
This table describes scenarios that you encounter when you short together NetGroups and buses in a Capture design. The table is followed by one example for each of the described scenarios.

Short	Generated Object (Bus or NetGroup)	Winning Bus	Generated Flat Nets	Defintion
Bus & Bus (different width)	Bus	Higher width bus	Follow lexicographic order	NA
EXAMPLE Bus A[0:3] - Members: A0, A1, , A2, A3 Bus B[0:5] - Members: B0, B1, B2, B3, B4, B5
	B[0..5]	B[0..5]	A0 A1 A2 A3 B4 B5	NA
NetGroup & NetGroup - physical short (different width)	NetGroup	Higher width NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..5] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2 ,S.JTAG3, S.JTAG4, S.JTAG5 NetGroup B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..5]	S[0..5]	S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5	S[0..5]
NetGroup & NetGroup - logical short (different width)	NetGroup	Higher width NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..5] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2 ,S.JTAG3, S.JTAG4, S.JTAG5 NetGroup B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..5]	S[0..5]	S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5	S[0..5]
In the case of a logical (named) connection: if the NetGroups aliases are different, the NetGroups are shorted together. if the associated NetGroup definitions are the same, the NetGroups are shorted together.
NetGroup & NetGroup (same width)	NetGroup	Lexicographically smaller NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2 NetGroup B[0..2] - Members: B.B0,B.B1 and B.B2
NetGroup & NetGroup - logical short (same width)	NetGroup	Lexicographically smaller NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2 NetGroup B[0..2] - Members: B.B0,B.B1 and B.B2
In the case of a logical (named) connection, if the aliases names of both the NetGroups is the same, only then will the two NetGroups be shorted together.
	B[0..2]	B[0..2]	B.B0,B.B1 and B.B2	B[0..2]
Bus & NetGroup (NetGroup width higher)	NetGroup	NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..5] - Members: S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5 Bus B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..5]	S[0..5]	S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5	S[0..5]
Bus & NetGroup (Bus width higher)	Hybrid Bus (Bus+NetGroup)	Higher width NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1, S.JTAG2 Bus B[0:5] - Members: B.B0, B.B1, B.B2, B.B3, B.B4, B.B5
	B[0..5]	B[0..5]	B.JTAG0, B.JTAG1, B.JTAG2, B3, B4 and B5	S[0..2]
Bus & NetGroup (same width)	NetGroup	NetGroup	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2 Bus B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..5]	S[0..5]	S.JTAG0, S.JTAG1, S.JTAG2	S[0..5]
NetGroup wire & NetGroup OPC/GLOBAL/PORT (different widths)	NetGroup	NetGroup OPC/GLOBAL/PORT	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..5] - Members: S.JTAG0, S.JTAG1 ,S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5 NetGroup OPC B[0..2] - Members: B.B0, B.B1, B.B2
	B[0..2]	B[0..2]	B.B0, B.B1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5	B[0..2]
Bus & NetGroup OPC/GLOBAL/PORT (NetGroup width higher)	NetGroup	NetGroup OPC/GLOBAL/PORT	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup OPC S[0..5] - Members: S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5 Bus B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..5]	S[0..5]	S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5	S[0..5]
Bus & NetGroup OPC/GLOBAL/PORT (bus width higher)	NetGroup	NetGroup OPC/GLOBAL/PORT	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..5] - Members: S.JTAG0, S.JTAG1, S.JTAG2, S.JTAG3, S.JTAG4, S.JTAG5 Bus OPC B[0:2] - Members: B.B0, B.B1, B.B2
	S[0..2]	S[0..2]	S.JTAG0, S.JTAG1, S.JTAG2, B3,B4,B5	S[0..2]
NetGroup wire and Bus OPC/GLOBAL/PORT (NetGroup width higher)	Bus	Bus OPC/GLOBAL/PORT	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1, S.JTAG2 Bus OPC B[0:5] - Members: B.B0, B.B1, B.B2, B.B3, B.B4, B.B5
	S[0..2]	S[0..2]	B0,B1, B2, S.JTAG3, S.JTAG4, S.JTAG5	S[0..5]
NetGroup wire and Bus OPC/GLOBAL/PORT (bus width higher)	Bus	Bus OPC/GLOBAL/PORT	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
EXAMPLE NetGroup S[0..2] - Members: S.JTAG0, S.JTAG1, S.JTAG2 Bus OPC B[0:5] - Members: B.B0, B.B1, B.B2, B.B3, B.B4, B.B5
	B[0..5]	B[0..5]	B0,B1, B2, B3,B4,B5	S[0..2]
NetGroup wire and NetGroup connector	NetGroup	NetGroup connector	Winning Bus defines flat nets	associated NetGroup definition should match winning bus
NetGroup connector and NetGroup connector	NetGroup	Lexicographically smaller NetGroup connector	Winning Bus defines flat nets	associated NetGroup definition should match winning bus