PLF2224 Datasheet, PDF (1/2 Pages) Infineon Technologies AG – 24 + 2G Switch on a Chip with Embedded Memory

Infineon’s PLB2224 is a highly integrated Layer 2+
switch-on-a-chip with twenty-four 10/100 Mbps and
two 10/100/1000 Mbps Ethernet ports. The PLB2224
provides wire-speed, full-duplex switching capability
on all ports. On-chip memory for packet buffers and
address tables eliminate the need for external memory
resulting in smaller PCB real estate and lower power
consumption.
The PLB2224 features support unmanaged, minimally
managed (Smart), and fully managed Layer-2 switch
configurations. The Gigabit ports can be used to daisy
chain multiple devices in a system providing even
higher port counts for medium to large office buildings
and multi-tenant, multi-dwelling units where power
and space are at a premium. The high level of integra-
tion in PLB2224 allows for design of systems with
fewer components and a low bill of material.
PRODUCT BRIEF
Features
■ 24 + 2G Single Chip Switch
■ On-chip Memory for Packet Buffer
and Address Tables. No External
Memory Required.
- 12 Mb of embedded DRAM for
Packets, for up to 1,000 Packets
- Up to 8K MAC Address Entries
with Auto Learning and Aging
■ Supported Switch Configurations
- Fixed – Either 24 + 2G,
48 or 48 + 2G
- Stack – Up to 7 devices per stack
(168 + 2G). Stack controlled
using I²C Interface
■ L2 Switching with L2+ Packet
Processing
- Generic Pattern Recognition
Engine with 16 User
Programmable Patterns. Search
for Pattern Match within first 64B
of packet data.
- Can be used to detect
Control Packets such as
IGMP (IP Multicast) and
GVRP (VLAN Membership).
- Lookup Results Used to Filter
and/or Monitor Packets,
Change Forwarding Scope,
Modify Queue Assignment,
and Collect Statistics.
P L B 2 2 2 4 ■ Wire-Speed Performance on All
Ports
- Fast Ethernet Ports Support
■ Advanced Queuing and
Scheduling for QoS - IEEE 802.1p
Compliant
10/100 Mbps
- 2 Queues per Port Supporting
- Gigabit Ethernet Ports Support
Strict Priority and Weighted Fair
10/100/1000 Mbps
Queue (WFQ) Scheduling
- Half/Full Duplex Support on
All Ports at 10/100 Mbps,
Full Duplex at 1000 Mbps
- Auto-negotiation Support for
All Ports
- 802.3x compliant Flow Control
on Full Duplex Ports,
Congestion-based Flow Control
on Half Duplex Ports
■ Statistics Counters for
SNMP MIB II & RMON1 MIB
■ Port Monitoring
Interfaces
■ SMII for Fast Ethernet Ports
■ MII/GMII/TBI for Gigabit Ethernet
Ports
■ 32-Bit, 33 MHz PCI or Generic
Interface for External CPU
■ I²C Interface for Configuration
EEPROM and Optional
CPU Connection.
■ Simple Interface for Status LEDs.
Supported Standards
■ Bridging - IEEE 802.1D Compliant
with Support for Spanning Tree
■ VLAN - IEEE 802.1Q Compliant
- Up to 1K Active VLANs
- Port or Tag based
■ Link Aggregation - IEEE 802.3ad
Compliant
- 2/4/8 FE Ports or 2 GE Ports per
Trunk. Multiple Trunks per
Device. Support for Resiliency
Other
■ Power Consumption less than
3 W.
■ 1.8 V, 0.18 µ Logic Process with
Embedded DRAM, 3.3 V Tolerant
I/Os.
Type
PLB2224
Package
Plastic BGA-272
PLB2224
24 + 2G Switch on a Chip
with Embedded Memory
Never stop thinking.