L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 203
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L-ET4148-50C-DB
Manufacturer Part Number
L-ET4148-50C-DB
Description
Manufacturer
LSI
Datasheet
1.L-ET4148-50C-DB.pdf
(298 pages)
Specifications of L-ET4148-50C-DB
Lead Free Status / RoHS Status
Supplier Unconfirmed
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Preliminary Data Sheet
April 2006
Agere Systems Inc.
Appendix A: Registers
Policer_Statistics_{5..6}
Description: Tracks policer behavior.
Table 285. Policer_Statistics_{5..6} Register Parameters
Table 286. Policer_Statistics_{5..6} Field Parameters
These statistics counters increment by one for each packet that matches the associated criteria. These counters
roll over to zero upon incrementing beyond its maximum value. It is incumbent upon the supervisor to sample
these statistics often enough to avoid missing a counter rollover.
There is one pair of counters for each policer. For the multichannel packet_processor modules, the statistics
are arranged such that the statistics type (demote vs. discard) forms the least significant bit of the address. The
policer number forms the next most significant 3 bits, and the channel number forms the most significant 4 bits of
the statistics selection address.
REFERENCE
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
policer_discards[21:0]
policer_demotes[21:0]
PORT
0
4
Parameter
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
0
Field Name
XG1
1
60
2
XG0
50
3
SU1
49
4
5
SU0
48
Figure 214. Policer_Statistics_{5..6} Register Diagram
6
G47
0x0007_6000
640
2
32768
8
80
8
47
7
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
(continued)
8
G46
46
Figure 215. Port Numbering Scheme
9
G45
45
10
Agere Systems - Proprietary
Instances = 1
Instances = 1
Offset = 0.10
Offset = 4.10
Mode = R/W
Mode = R/W
Parameters
Value
PORT NUMBERING SCHEME
11
G44
44
12
13
14
15
16
G3
3
The count of the number of packets discarded per
policer.
The count of the number of packets demoted per
policer.
17
G2
2
18
policer_demotes[21:0]
policer_discards[21:0]
19
G1
1
20
G0
0
21
22
9
23
8
Description
G = 10/100/1000 Mbits/s PORT
XG = 10 Gbits/s PORT
SU = SUPERVISOR
24
7
25
6
26
5
27
4
28
3
29
2
ET4148-50
30
1
31
0
203
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