L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 264

• 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
Vlan_Port_Protocol_Table_{0..4}
Description: This table converts port numbers and protocol indexes into VLAN indexes.
Table 374. Vlan_Port_Protocol_Table_{0..4} Register Parameters
Table 375. Vlan_Port_Protocol_Table_{0..4} Field Parameters
A 4-bit port number (range: 0..9) and a 3-bit protocol index are concatenated together to form an address in this
table. The value returned is an entry_valid indication and a VLAN index for use in all ingress and egress packet
processing. If entry_valid is false, vlan_index[7:0] is invalid.
Care must be taken when configuring this table to ensure consistency from one packet processor to the next (e.g.,
avoid the accidental or inconsistent reuse of VLAN index values).
This table is addressed by a concatenation of port[5:0] % 10 and ethertype_index[2:0].
264
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
entry_valid
vlan_index[7:0]
0
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
Parameter
1
2
REFERENCE
3
4
Figure 286. Vlan_Port_Protocol_Table_{0..4} Register Diagram
PORT
5
6
XG1
7
60
(continued)
8
XG0
50
Instances = 1
Instances = 1
Offset = 0.20
Mode = R/W
Mode = R/W
9
Parameters
Offset = 0.0
Figure 287. Port Numbering Scheme
SU1
10
49
Agere Systems - Proprietary
11
G = 10/100/1000 Mbits/s PORT
XG = 10 Gbits/s PORT
SU = SUPERVISOR
SU0
48
PORT NUMBERING SCHEME
0x0004_dc00
12
G47
13
32768
Value
47
320
80
5
4
4
14
G46
46
15
This bit is asserted to indicate that the associ-
ated VLAN index value is valid.
The VLAN identifier as selected by the
packet’s protocol.
G45
16
45
17
G44
44
18
19
20
Description
21
22
G3
3
23
8
G2
24
7
2
25
6
Preliminary Data Sheet
G1
1
vlan_index[7:0]
26
5
G0
27
0
4
28
Agere Systems Inc.
3
29
2
30
1
April 2006
31
0