KSZ8893FQL-FX Micrel Inc, KSZ8893FQL-FX Datasheet - Page 44
![2+1 Port 10/100 Switch W/Tranceivers & Frame Buffers, ( )](/photos/6/81/68152/576-128-pqfp_sml.jpg)
KSZ8893FQL-FX
Manufacturer Part Number
KSZ8893FQL-FX
Description
2+1 Port 10/100 Switch W/Tranceivers & Frame Buffers, ( )
Manufacturer
Micrel Inc
Datasheet
1.KSZ8893FQL-FX.pdf
(117 pages)
Specifications of KSZ8893FQL-FX
Controller Type
Ethernet Switch Controller
Interface
MII, RMII, SNI
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
Number Of Primary Switch Ports
3
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Power Supply Type
Analog/Digital
Package Type
PQFP
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
1000Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1603 - EVAL KIT EXPERIMENTAL KSZ8893MQL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-3273
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8893FQL-FX
Manufacturer:
Micrel Inc
Quantity:
1 950
Company:
Part Number:
KSZ8893FQL-FX
Manufacturer:
FSC
Quantity:
1 800
Micrel, Inc.
For packets from regular ports (port 1 & port 2) to port 3, the port mask is used to tell the processor which port the
packets were received on, defined as follows:
No port mask values, other than the previous two defined ones, should be received in this direction in Special Tagging
Mode. The switch to processor egress rules are defined as follows:
IGMP Support
For Internet Group Management Protocol (IGMP) support in layer 2, the KSZ8893FQL provides two components:
IGMP Snooping
The KSZ8893FQL traps IGMP packets and forwards them only to the processor (port 3). The IGMP packets are
identified as IP packets (either Ethernet IP packets, or IEEE 802.3 SNAP IP packets) with IP version = 0x4 and protocol
version number = 0x2.
Multicast Address Insertion in the Static MAC Table
Once the multicast address is programmed in the Static MAC Table, the multicast session is trimmed to the subscribed
ports, instead of broadcasting to all ports.
To enable IGMP support, set register 5 bit [6] to ‘1’. Also, Special Tagging Mode needs to be enabled, so that the
processor knows which port the IGMP packet was received on. This is achieved by setting both register 11 bit [0] and
register 48 bit [2] to ‘1’.
IPv6 MLD Snooping
The KSZ8893FQL traps IPv6 Multicast Listener Discovery (MLD) packets and forwards them only to processor (port 3).
MLD snooping is controlled by register 5 bit 5 (MLD snooping enable) and register 5 bit 4 (MLD option).
With MLD snooping enabled, the KSZ8893FQL traps packets that meet all of the following conditions:
If the MLD option bit is set to “1”, the KSZ8893FQL traps packets with the following additional condition:
For MLD snooping, Special Tagging Mode also needs to be enabled, so that the processor knows which port the MLD
packet was received on. This is achieved by setting both register 11 bit [0] and register 48 bit [2] to ‘1’.
Port Mirroring Support
KSZ8893FQL supports “Port Mirroring” comprehensively as:
October 2007
•
•
•
•
“receive only” mirror on a port
All the packets received on the port are mirrored on the sniffer port. For example, port 1 is programmed to be
“receive sniff” and port 3 is programmed to be the “sniffer port”. A packet received on port 1 is destined to port 2
after the internal lookup. The KSZ8893FQL forwards the packet to both port 2 and port 3. The KSZ8893FQL
can optionally even forward “bad” received packets to the “sniffer port”.
Ingress Packets
Tagged with 0x8100 + TCI
Not tagged
IPv6 multicast packets
Hop count limit = 1
IPv6 next header = 1 or 58 (or = 0 with hop-by-hop next header = 1 or 58)
IPv6 next header = 43, 44, 50, 51, or 60 (or = 0 with hop-by-hop next header = 43, 44, 50, 51, or 60)
“0001”, packet from port 1
“0010”, packet from port 2
Table 17. STPID Egress Rules (Switch Port 3 to Processor)
Egress Action to Tag Field
- Modify TPID to 0x810 + “port mask”, which indicates source port
- No change to TCI if VID is not null
- Replace null VID with ingress port VID
- Recalculate CRC
- Insert TPID to 0x810 + “port mask”, which indicates source port
- Insert TCI with ingress port VID
- Recalculate CRC
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M9999-101607-1.3
KSZ8893FQL