gmacgrp_layer3_addr3_reg1 

         
For IPv4 frames, the Layer 3 Address 3 Register 1 is reserved. For IPv6 frames, it contains Bits [127:96] of the 128-bit IP Source Address or Destination Address field.
Module Instance Base Address Register Address
i_emac_emac0 0xFF800000 0xFF80044C
i_emac_emac1 0xFF802000 0xFF80244C
i_emac_emac2 0xFF804000 0xFF80444C

Size: 32

Offset: 0x44C

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

l3a31

RW 0x0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

l3a31

RW 0x0

gmacgrp_layer3_addr3_reg1 Fields

Bit Name Description Access Reset
31:0 l3a31 
When Bit 1 (L3PEN1) and Bit 2 (L3SAM1) are set in Register 268 (Layer 3 and Layer 4 Control Register 1), this field contains the value to be matched with Bits [127:96] of the IP Source Address field in the IPv6 frames.

When Bit 0 (L3PEN1) and Bit 4 (L3DAM1) are set in Register 268 (Layer 3 and Layer 4 Control Register 1), this field contains the value to be matched with Bits [127:96] of the IP Destination Address field in the IPv6 frames.

When Bit 0 (L3PEN1) is reset in Register 268 (Layer 3 and Layer 4 Control Register 1), this register is not used.
 RW 0x0