KSZ8842-PMBLAM中文資料麥瑞半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

General Description

The KSZ8842-series of 2-port switches includes PCI and non-PCI CPU interfaces. This datasheet describes the KSZ8842-PMQL/PMBL PCI CPU interface chips. KSZ8842-PMQL is PQFP package chip, KSZ8842-PMBL is LFBGA package chip. For information on the KSZ8842-MQL/MBL CPU non-PCI interface switches, refer to the KSZ8842-MQL/MBL datasheet.

Features

Switch Management

? Non-blocking switch fabric assures fast packet delivery by utilizing a 1K entry MAC Address look-up engine and a store-and-forward architecture

? Fully compliant with IEEE802.3u standards

? Full-duplex IEEE 802.3x flow control (Pause) with force mode option

? Half-duplex back pressure flow control

Advanced Switch Management

? IEEE 802.1Q VLAN support for up to 16 groups (fullrange of VLAN IDs)

? VLAN ID tag/untag options, per port basis

? IEEE 802.1p/Q tag insertion or removal on a per-port basis (egress)

? Programmable rate limiting at the ingress and egress port

? Broadcast storm protection

? IEEE 802.1d spanning tree protocol support

? MAC filtering function to filter unicast packets

? Unknown MAC address forwarding function

? Direct forwarding mode enabling the processor to identify the ingress port and to specify the egress port

? IGMP v1/v2 snooping support for multicast packet filtering

? IPV6 Multicast Listener Discovery (MLD) snooping support

Monitoring

? Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port

? Management information base (MIB) counters for fully compliant statistics gathering: 32 MIB counters per port

? Loop back modes for remote failure diagnostics

Comprehensive Register Access

? There are three kinds of register groups:

? The PCI configuration registers are used to initialize and configure the PCI interface

? The PCI control/status registers are used to communicate between the host and KSZ8842- PMQL/PMBL

? Switch registers are used to support transceiver control and status. They are configurable on-the-fly (portpriority, 802.1p/d/Q, etc.)

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Applications

? Video Distribution Systems

? High-end Cable, Satellite, and IP set-top boxes

? Video over IP

? Voice over IP (VoIP) and Analog Telephone Adapters (ATA)

? Industrial Control in Latency Critical Applications

? Motion Control

? Industrial Control Sensor Devices (Temperature, Pressure, Levels, and Valves)

? Security and Surveillance Cameras