EASY 6996M CPU Infineon Technologies, EASY 6996M CPU Datasheet - Page 38

• Manufacturer Part Number: EASY 6996M CPU
• Description: BOARD EVAL W/CPU ADM6996M
• Manufacturer: Infineon Technologies
• Series: Samurair

Specifications of EASY 6996M CPU

• Main Purpose: Interface, Ethernet
• Embedded: No
• Utilized Ic / Part: ADM6996M
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Primary Attributes: -
• Other names: EASY6996MCPUIN

Table 13
Packet Type
IGMP_IP/MLD_IP/MLD_IPV6
Others
3.1.14
The difference between two VLAN rules is the way to search the VLAN boundary. Users could enable “TAG Base
VLAN” (see 0011
3.1.14.1
Samurai-6M/6MX (ADM6996M/MX) supports 16 VLAN filters, each specifying a Valid bit, a TAG PRI, a VID, a FID,
a Tagged Member, and a Member.
Table 14
VLAN Filter 0
VLAN Filter 15
3.1.14.2
Port VLANs are created by grouping individual physical ports together. In this mode, only 6 VLAN filters (VLAN
filter 0 ~5) are used. By the time examining the received frame, the source port is used as an index to search the
VLAN filter. If the source port is port 0, then Member in the filter 0 is the VLAN group that port 0 joins.
3.1.14.3
Tagged VLAN is created with the aid of the VID in the packet or VID assigned by the source port. This VID is
compared with 16 VIDs in the VLAN filters to check if any match exists. The Member in this matched filter is the
VLAN boundary for the packet.
3.1.14.4
VID for comparison and carried through Samurai-6M/6MX (ADM6996M/MX) (as egress VID) depends on the
VLAN configuration.
VID0: The incoming packet is tagged with VID = 000
Null VID with PVID (see basic control registers) if necessary.
VID1: The incoming packet is tagged with VID = 001
with PVID (see basic control registers) if necessary.
VIDFFF: The incoming packet is tagged with VID = FFF
replace VIDFFF with PVID (see basic control registers) if necessary.
Data Sheet
~
Cross_VLAN Packet (cont’d)
Tagged VLAN or Port VLAN
VLAN Filters
VLAN Filters
Port VLAN
Tagged VLAN
VID for Comparison and Carried through Samurai-6M/6MX (ADM6996M/MX)
VLAN_Valid
H
, TBV) bit to instruct Samurai-6M/6MX (ADM6996M/MX) to operate in the Tagged VLAN mode.
VLAN_PRI[2:
0]
Description
The cross_VLAN packet is determined in priority order by:
1. Cross-VLAN bit defined in the Special TAG, when Cross_VLAN_Valid is
2. Cross-VLAN bit in register 000C
The Cross_VLAN packet is determined in priority order by:
1. Cross_VLAN bit defined in the Special TAG, when Cross_VLAN_Valid is
2. Cross_VLAN bit defined in the learning table when there is a match for
set.
set.
DA+FID.If the first and second conditions are not satisfied, the frame is
classified as non-cross_VLAN packets.
VID[11:0]
H
H
. Enable “Replace VID1” (see 000A
. Enable “Replace VID0” (see 000A
38
H
. Enable “Replace VIDFFF” (see 000A
FID[3:0]
H
.
Tagged
Member[5:0]
H
Revision 1.4, 2006-03-24
, RVID1) to replace VID1
H
, RVID0) to replace the
Function Description
Samurai-6M/MX
ADM6996M/MX
Member[5:0]
H
, RVIDFFF) to