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AM79C90PC Datasheet(PDF) 54 Page - Advanced Micro Devices

Part # AM79C90PC
Description  CMOS Local Area Network Controller for Ethernet (C-LANCE)
PDF  62 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C90PC Datasheet(HTML) 54 Page - Advanced Micro Devices

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AMD
54
Am79C90
Table A-1 “Mapping of Logical Address to Filter Mask”
can be used to find a multicast address that maps into a
particular address filter bit. For example, address BB 00
00 00 00 00 maps into bit 15. Therefore, any node that
has bit 15 set in its logical address filter register will re-
ceive all packets addressed to BB 00 00 00 00 00. The
table also shows that bit 15 is located in bit 7 of byte 1 of
the Logical Address Filter Register.
Addresses in this table are shown in the standard Ether-
net format. The leftmost byte is the first byte to appear
on the network with the least significant bit appearing
first.
Table A-1. Mapping of Logical Address to Filter Mask
Byte
Bit
LAF
Destination
Byte
Bit
LAF
Destination
Pos
Pos
Bit
Address Accepted
Pos
Pos
Bit
Address Accepted
0
0
0
85
00
00
00
00
00
4
0
32
21
00
00
00
00
00
0
1
1
A5
00
00
00
00
00
4
1
33
01
00
00
00
00
00
0
2
2
E5
00
00
00
00
00
4
2
34
41
00
00
00
00
00
0
3
3
C5
00
00
00
00
00
4
3
35
71
00
00
00
00
00
0
4
4
45
00
00
00
00
00
4
4
36
E1
00
00
00
00
00
0
5
5
65
00
00
00
00
00
4
5
37
C1
00
00
00
00
00
0
6
6
25
00
00
00
00
00
4
6
38
81
00
00
00
00
00
0
7
7
05
00
00
00
00
00
4
7
39
A1
00
00
00
00
00
1
0
8
2B
00
00
00
00
00
5
0
40
8F
00
00
00
00
00
1
1
9
0B
00
00
00
00
00
5
1
41
BF
00
00
00
00
00
1
2
10
4B
00
00
00
00
00
5
2
42
EF
00
00
00
00
00
1
3
11
6B
00
00
00
00
00
5
3
43
CF
00
00
00
00
00
1
4
12
EB
00
00
00
00
00
5
4
44
4F
00
00
00
00
00
1
5
13
CB
00
00
00
00
00
5
5
45
6F
00
00
00
00
00
1
6
14
8B
00
00
00
00
00
5
6
46
2F
00
00
00
00
00
1
7
15
BB
00
00
00
00
00
5
7
47
0F
00
00
00
00
00
2
0
16
C7
00
00
00
00
00
6
0
48
63
00
00
00
00
00
2
1
17
E7
00
00
00
00
00
6
1
49
43
00
00
00
00
00
2
2
18
A7
00
00
00
00
00
6
2
50
03
00
00
00
00
00
2
3
19
87
00
00
00
00
00
6
3
51
23
00
00
00
00
00
2
4
20
07
00
00
00
00
00
6
4
52
A3
00
00
00
00
00
2
5
21
27
00
00
00
00
00
6
5
53
83
00
00
00
00
00
2
6
22
67
00
00
00
00
00
6
6
54
C3
00
00
00
00
00
2
7
23
47
00
00
00
00
00
6
7
55
E3
00
00
00
00
00
3
0
24
69
00
00
00
00
00
7
0
56
CD
00
00
00
00
00
3
1
25
49
00
00
00
00
00
7
1
57
ED
00
00
00
00
00
3
2
26
09
00
00
00
00
00
7
2
58
AD
00
00
00
00
00
3
3
27
29
00
00
00
00
00
7
3
59
8D
00
00
00
00
00
3
4
28
A9
00
00
00
00
00
7
4
60
0D
00
00
00
00
00
3
5
29
89
00
00
00
00
00
7
5
61
2D
00
00
00
00
00
3
6
30
C9
00
00
00
00
00
7
6
62
6D
00
00
00
00
00
3
7
31
E9
00
00
00
00
00
7
7
63
4D
00
00
00
00
00



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