Zynq UltraScale+ Devices Register Reference > Module Summary > GEM Module > stacked_vlan (GEM) Register
Register Name | stacked_vlan |
---|---|
Relative Address | 0x00000000C0 |
Absolute Address |
0x00FF0B00C0 (GEM0) 0x00FF0C00C0 (GEM1) 0x00FF0D00C0 (GEM2) 0x00FF0E00C0 (GEM3) |
Width | 32 |
Type | mixedMixed types. See bit-field details. |
Reset Value | 0x00000000 |
Description | Stacked VLAN Register |
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
enable_processing | 31 | rwNormal read/write | 0x0 | Enable stacked VLAN processing mode |
Reserved | 30:16 | roRead-only | 0x0 | Reserved, read as 0, ignored on write. |
match | 15:0 | rwNormal read/write | 0x0 | User defined VLAN_TYPE field. When Stacked VLAN is enabled, the first VLAN tag in a received frame will only be accepted if the VLAN type field is equal to this user defined VLAN_TYPE OR equal to the standard VLAN type (0x8100). Note that the second VLAN tag of a Stacked VLAN packet will only be matched correctly if its VLAN_TYPE field equals 0x8100. |