gmacgrp_mac_address1_high 

         <b> Register 18 (MAC Address1 High Register) </b> 

The MAC Address1 High register holds the upper 16 bits of the second 6-byte MAC address of the station.

If the MAC address registers are configured to be double-synchronized to the (G)MII clock domains, then the synchronization is triggered only when Bits[31:24] (in little-endian mode) or Bits[7:0] (in big-endian mode) of the MAC Address1 Low Register are written. For proper synchronization updates, the consecutive writes to this Address Low Register should be performed after at least four clock cycles in the destination clock domain.
Module Instance Base Address Register Address
i_emac_emac0 0xFF800000 0xFF800048
i_emac_emac1 0xFF802000 0xFF802048
i_emac_emac2 0xFF804000 0xFF804048

Size: 32

Offset: 0x48

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

ae

RW 0x0

sa

RW 0x0

mbc_5

RW 0x0

mbc_4

RW 0x0

mbc_3

RW 0x0

mbc_2

RW 0x0

mbc_1

RW 0x0

mbc_0

RW 0x0

reserved_23_16

RO 0x0

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

addrhi

RW 0xFFFF

gmacgrp_mac_address1_high Fields

Bit Name Description Access Reset
31 ae 
Address Enable

When this bit is set, the address filter module uses the second MAC address for perfect filtering. 
When this bit is reset, the address filter module ignores the address for filtering.
Value Description
0x0 DISABLED
0x1 ENABLED
RW 0x0
30 sa 
Source Address

When this bit is set, the MAC Address1[47:0] is used to compare with the SA fields of the received frame.

When this bit is reset, the MAC Address1[47:0] is used to compare with the DA fields of the received frame.
Value Description
0x0 DISABLED
0x1 ENABLED
RW 0x0
29 mbc_5 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
28 mbc_4 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
27 mbc_3 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
26 mbc_2 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
25 mbc_1 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
24 mbc_0 
This array of bits are mask control bits for comparison of each of the MAC Address bytes. When masked, the MAC does not compare the corresponding byte of received DA or SA with the contents of MAC Address1 high and low registers. Each bit controls the masking of the bytes. You can filter a group of addresses (known as group address filtering) by masking one or more bytes of the address.
The array index corresponds to the byte (e.g. index 0 is for bits 7:0).
Value Description
0x0 UNMASKED
0x1 MASKED
RW 0x0
23:16 reserved_23_16 
Reserved
 RO 0x0
15:0 addrhi 
MAC Address1 [47:32]

This field contains the upper 16 bits (47:32) of the second 6-byte MAC address.
 RW 0xFFFF