CX82100 Home Network Processor Data Sheet
Table 7-4. Setup Frame Buffer Format
Entry No.
Bytes
3:0
7:4
Bits 31:16
Bits 15:0
Bytes [1:0]
Physical Address No.
0
1
2
3
4
5
6
7
8
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX
. . . . .
Address 0
Bytes [3:2]
Bytes [5:4]
Bytes [1:0]
Bytes [3:2]
Bytes [5:4]
Bytes [1:0]
Bytes [3:2]
Bytes [5:4]
. . . . .
11:8
15:12
19:16
23:20
27:24
31:28
35:32
. . . . .
Address 1
Address 2
45
46
47
183:180 XXXXXXXXXXXXXXXX
187:184 XXXXXXXXXXXXXXXX
191:188 XXXXXXXXXXXXXXXX
Bytes [1:0]
Bytes [3:2]
Bytes [5:4]
Address 15
Note that any mix of physical (i.e., unicast: the first bit of the address is 0) and logical
(i.e., multicast or group: the first bit of the address is 1) addresses can be used. Unused
addresses should be duplicated with one of the valid addresses.
Example of a Perfect Address Filtering Setup Frame
Figure 7-7 displays a perfect address filtering setup frame for two address filters.
Figure 7-7. A Perfect Address Filtering Setup Frame Buffer
Ethernet addresses to be filtered:
(1) 25-00-26-11-27-22
(2) 09-AB-08-D1-01-15
Setup Frame in Host Buffer
(Little-Endian)
Setup Frame in EMAC Buffer
(Little-Endian)
Byte No.
Byte No.
3
2
1
0
1
0
0
1
2
3
4
5
6
7
8
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x x
0 0
1 1
2 2
A B
D 1
1 5
A B
D 1
1 5
2 5
2 6
2 7
0 9
0 8
0 1
0 9
0 8
0 1
0 0
1 1
2 2
A B
D 1
1 5
A B
D 1
1 5
2 5
2 6
2 7
0 9
0 8
0 1
0 9
0 8
0 1
0
1
2
3
4
5
6
7
8
(1)
(2)
.
.
.
.
.
.
.
.
.
.
.
.
repeat last
valid address
45
46
47
x x
x x
x x
x x
x x
x x
A B
D 1
1 5
0 9
0 8
0 1
A B
D 1
1 5
0 9
0 8
0 1
45
46
47
101545_034
101306C
Conexant Proprietary and Confidential Information
7-17
CONEXANT [ CONEXANT SYSTEMS, INC ]
