KS8995MA Micrel Inc, KS8995MA Datasheet - Page 27

• Manufacturer Part Number: KS8995MA
• Description: IC SWITCH 10/100 5PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8995MA

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1017 - BOARD EVAL EXPERIMENT KS8995M
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

Semptember 2008
Figure 7. DA Resolution Flowchart – Stage 2
Spanning Tre e
IGM P Proces s
Figure 6. DA Look-Up Flowchart – Stage 1
Membership
Port Mirror
Port VLAN
Process
Process
Search complete.
Search complete.
Check
Get PTF1 from
Get PTF1 from
PTF2
PTF1=NULL
dynamic table.
PTF1
static table.
-Check receiving port's receive enable bit
-Check destination port's transmit enable bit
-Check whether packets are special (BPDU
or specified)
-Applied to MAC #1 to #4
-MAC#5 is reserved for microprocessor
-IGM P will be forwarded to port
-RX Mirror
-TX Mirror
-RX or TX Mirror
-RX and TX Mirror
FOUND
FOUND
NO
Search complete.
Get PTF1 from
Search Static
VLAN table.
VLAN ID
VALID?
Dynamic
Search
PTF1
Start
Table
Table
27
FOUND
FOUND
YES
NOT
NOT
-Search VLAN table.
-Ingress VLAN filtering
-Discard NPVID check
Search based on
DA or DA+FID
This search is based on
DA+FID
5
M9999-091508