Table 9-5. Address Filter Pointer - Cirrus Logic EP93 Series User Manual

1/10/100 Mbps Ethernet LAN Controller
EP93xx User's Guide
5. Pause time = Transmit Pause Time (FCF) (2bytes)
6. Padding to complete minimum size packet.
9
7. CRC
AFP
31 30
15 14
Address:
Chip Reset:
Soft Reset:
Definition:
Bit Descriptions:
9-52
29 28 27 26
13 12 11 10
0x8001_004C - Read/Write
0x0000_0000
0x0000_0000
Address Filter Pointer Register
RSVD:
AFP:
AFP
This is the primary Individual Address, used in the recognition of Wake-up frames, as the
000 source address for transmit pause frames, and may be optionally used to qualify receive pause
frames.
001 This is a secondary MAC address that may be optionally used to qualify receive pause frames
010 These secondary addresses are only used for qualifying the destination addresses of receive
011 frames.
100
These locations are not implemented
101
110 This address is used as the destination address of transmit pause frames
111 This block comprises the hash table used for qualifying the destination of receive frames.
Copyright 2007 Cirrus Logic
25 24 23 22
RSVD
9 8 7 6
RSVD
Reserved. Unknown During Read.
Address Filter Pointer. The Address Filter Pointer controls
access to a block of storage which is used to hold MAC
addresses, and the destination address hash table. The
pointer defines which set of address match functions are
visible to the Host at offset 0x0050 through 0x005F.

Table 9-5. Address Filter Pointer

Data Accessed at Offset 0050 through 005F
21 20 19 18
5 4 3 2
17 16
1 0
AFP
DS785UM1