L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 193

• 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
Policer_Delta_Table_{5..6}
Description: This table is used to specify the per-flow leak rates for the nonchannelized packet processors.
Table 265. Policer_Delta_Table_{5..6} Register Parameters
Table 266. Policer_Delta_Table_{5..6} Field Parameters
The product of the policer_delta[6:0] values in this table and 16 are subtracted from their corresponding
entries in Policer_Accumulator_Table at a regular interval. This interval is derived from the system clock. The
nominal service interval for a 10 Gbit/s port is once every 1.28 µs or 781,250 times per second.
Larger policer_delta[6:0] values translate into higher allowed data rates on the corresponding policer.
When subtracted from the Policer_Accumulator_Table, a product of 16 (policer_delta[6:0] = 0x1)
results in a service interval of 12.5 Mbytes/s or 100 Mbits/s. This is 1% of 10 Gbits/s. A product of 1,600
(policer_delta[6:0] = 0x64) results in a service interval of 1,250 Mbytes/s or 10 Gbits/s. This is, of course, 100% of
the interface’s rated speed.
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
policer_delta[6:0]
0
Parameter
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
0
Field Name
1
REFERENCE
2
3
PORT
4
5
Figure 194. Policer_Delta_Table_{5..6} Register Diagram
6
XG1
60
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
(continued)
7
XG0
8
50
Figure 195. Port Numbering Scheme
9
SU1
0x0007_5600
49
Agere Systems - Proprietary
10
Instances = 1
Offset = 0.25
Mode = R/W
G = 10/100/1000 Mbits/s PORT
XG = 10 Gbits/s PORT
SU = SUPERVISOR
Parameters
32768
Value
SU0
48
320
11
PORT NUMBERING SCHEME
80
2
4
4
12
G47
47
13
G46
46
14
15
G45
45
16
The policer flow identifier.
G44
44
17
18
19
20
21
G3
3
22
Description
23
G2
8
2
24
7
G1
1
25
6
G0
26
5
0
policer_delta[6:0]
27
4
28
3
29
2
ET4148-50
30
1
31
0
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