EASY 6996M CPU Infineon Technologies, EASY 6996M CPU Datasheet - Page 60

• 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

3.1.21
Special Tag is inserted after the Ethernet SA field allows the CPU to tell the switch how to handle the packets it
sends or to know the source port when the CPU receives a packet.
8 Bytes
6 Bytes
6 Bytes
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
4 Bytes
6 Bytes
2 Bytes
4 Bytes
3.1.21.1
Users are allowed to enable Special TAG Receive (0011
(ADM6996M/MX) to check the Special Tag to see if this field contains any commands when packets are received
on the CPU port.
Table 40
Special TAG
Byte 0
Byte 1
Byte 2
Data Sheet
Special TAG
Special Tag for the Receive
Special Tag for the Receive
Preamble
DA
SA
Special Tag 0
Special Tag 1
Special Tag 2
Special Tag 3
Special Tag 4
Special Tag 5
VLAN Tag
SNAP
Type/Length
Data
CRC
Description
ADM Prefix 0.
ADM Prefix 1. When Special TAG Receive is enabled, Samurai-6M/6MX
(ADM6996M/MX) will compare {ADM Prefix -, ADM Prefix 1} with ADM TAG
Ether Type (see 002E
If they are the same, Samurai-6M/6MX (ADM6996M/MX) uses the Special
Tag to make switching decisions.
Bit [7]: Don’t care
Bit [6]: Portmap_Valid
1
0
Bit [5:0]: Portmap in the Special Tag
B
B
Valid
Not Valid
60
H
, ATET). If they are different, Special Tag is ignored.
H
, STRE) function to instruct Samurai-6M/6MX
Revision 1.4, 2006-03-24
Function Description
Samurai-6M/MX
ADM6996M/MX