GMAC_SVLAN

GMAC Stacked VLAN Register

  0x0C0 32 - 0x00000000  
Parent topic: Register Summary

GMAC Stacked VLAN Register

Bit  31 30 29 28 27 26 25 24  
  ESVLAN                
Access                   
Reset  0                
Bit  23 22 21 20 19 18 17 16  
                   
Access                   
Reset                   
Bit  15 14 13 12 11 10 9 8  
  VLAN_TYPE[15:8]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  
Bit  7 6 5 4 3 2 1 0  
  VLAN_TYPE[7:0]  
Access  R/W R/W R/W R/W R/W R/W R/W R/W  
Reset  0 0 0 0 0 0 0 0  

Bits 15:0 – VLAN_TYPE[15:0]: User Defined VLAN_TYPE Field

User Defined VLAN_TYPE Field

When Stacked VLAN is enabled (ESVLAN=1), 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: The second VLAN tag of a Stacked VLAN packet will only be matched correctly if its VLAN_TYPE field equals 0x8100.

Bit 31 – ESVLAN: Enable Stacked VLAN Processing Mode

Enable Stacked VLAN Processing Mode

0: Disable the stacked VLAN processing mode

1: Enable the stacked VLAN processing mode

ValueDescription
0 Stacked VLAN Processing disabled
1 Stacked VLAN Processing enabled