L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 149

• Manufacturer Part Number: L-ET4148-50C-DB
• Manufacturer: LSI

Specifications of L-ET4148-50C-DB

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Preliminary Data Sheet
April 2006
Agere Systems Inc.
Appendix A: Registers
Multicast_Rate_Discard_Mask
Description: Disables those ports that should not receive packets that exceed the permitted multicast rate.
Table 184. Multicast_Rate_Discard_Mask Register Parameters
Table 185. Multicast_Rate_Discard_Mask Field Parameters
This mask is applied to the destination port map if the value of Multicast_Rate_Accumulator is greater than
Multicast_Rate_Limit. This mask is only applied to multicast and broadcast packets.
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
multicast_rate_discard_mask[57:0]
0
4
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
0
1
REFERENCE
Parameter
2
Field Name
PORT
3
4
SU7
57
5
Figure 137. Multicast_Rate_Discard_Mask Register Diagram
SU6
6
56
7
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
(continued)
8
9
Figure 138. Port Numbering Scheme
SU1
51
10
Agere Systems - Proprietary
11
Instances = 1
SU0
Mode = R/W
Parameters
50
0x000c_4800
Offset = 0.6
multicast_rate_discard_mask[31:0]
12
XG1
Value
49
PORT NUMBERING SCHEME
NA
NA
13
G = 10/100/1000 Mbits/s PORT
XG = 10 Gbits/s PORT
SU = SUPERVISOR
1
8
1
8
XG0
48
14
multicast_rate_discard_mask[57:32]
15
G47
47
16
The multicast rate discard mask value. Each bit in the
mask corresponds to an Ethernet port or one of the
supervisor’s queues.
G46
46
17
G45
45
18
19
G44
44
20
21
22
Description
23
8
G3
3
24
7
25
6
G2
2
26
5
G1
1
27
4
G0
0
28
3
ET4148-50
29
2
30
1
31
0
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