Datasheet

Table Of Contents
Fast Ethernet Controller (FEC)
Freescale Semiconductor 17-21
17.4.17 Descriptor Group Upper Address Register (GAUR)
GAUR contains the upper 32 bits of the 64-bit hash table used in the address recognition process for
receive frames with a multicast address. You must initialize this register.
17.4.18 Descriptor Group Lower Address Register (GALR)
GALR contains the lower 32 bits of the 64-bit hash table used in the address recognition process for
receive frames with a multicast address. You must initialize this register.
IPSBAR
Offset:
0x111C Access: User read/write
313029282726252423222120191817161514131211109876543210
R
IADDR2
W
Reset————————————————————————————————
Figure 17-16. Descriptor Individual Lower Address Register (IALR)
Table 17-20. IALR Field Descriptions
Field Description
31–0
IADDR2
The lower 32 bits of the 64-bit hash table used in the address recognition process for receive frames with a unicast
address. Bit 31 of IADDR2 contains hash index bit 31. Bit 0 of IADDR2 contains hash index bit 0.
IPSBAR
Offset:
0x1120 Access: User read/write
313029282726252423222120191817161514131211109876543210
R
GADDR1
W
Reset————————————————————————————————
Figure 17-17. Descriptor Group Upper Address Register (GAUR)
Table 17-21. GAUR Field Descriptions
Field Description
31–0
GADDR1
The GADDR1 register contains the upper 32 bits of the 64-bit hash table used in the address recognition process for
receive frames with a multicast address. Bit 31 of GADDR1 contains hash index bit 63. Bit 0 of GADDR1 contains
hash index bit 32.
IPSBAR
Offset:
0x1124 Access: User read/write
313029282726252423222120191817161514131211109876543210
R
GADDR2
W
Reset————————————————————————————————
Figure 17-18. Descriptor Group Lower Address Register (GALR)
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3