L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 78

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

Specifications of L-ET4148-50C-DB

• Lead Free Status / RoHS Status: Supplier Unconfirmed

ET4148-50
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
Appendix A: Registers
Acl_Ip_Key_Table_2
Description: This table performs the third stage of IP address look-up.
Table 58. Acl_Ip_Key_Table_2 Register Parameters
Table 59. Acl_Ip_Key_Table_2 Field Parameters
This third stage of IP address look-up utilizes four records for IPv4/IPv6 or 16 records for IPv4-only.
78
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
ipv4_key_{0..2}[31:0]
ipv6_key[127:0]
12
0
4
8
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
0
Parameter
1
Field Name
2
3
4
5
6
7
Figure 47. Acl_Ip_Key_Table_2 Register Diagram
(continued)
8
0x0004_2300
9
Value
256
NA
16
16
16
10
1
Spacing = 4.0
Instances = 3
Instances = 1
11
Mode = R/W
Mode = R/W
Parameters
Offset = 0.0
Offset = 0.0
ipv4_key_0[31:0] or ipv6_key[127:96]
Agere Systems - Proprietary
ipv4_key_1[31:0] or ipv6_key[95:64]
ipv4_key_2[31:0] or ipv6_key[63:32]
12
13
14
ipv6_key[31:0]
15
16
17
A set of 32-bit IPv4 address values. These values
are compared against the search argument. The
results of these comparisons are used to select one
of four index values for use in the next stage of the
look-up.
A 128-bit IPv6 address value. This value is com-
pared against the search argument. The result of
this comparison is used to select one of two index
values for use in the next stage of the look-up.
18
19
20
21
22
9
23
Description
8
24
7
Preliminary Data Sheet
25
6
26
5
27
4
Agere Systems Inc.
28
3
29
2
April 2006
30
1
31
0