KSZ8842-PMBL AM TR Micrel Inc, KSZ8842-PMBL AM TR Datasheet - Page 2

• Manufacturer Part Number: KSZ8842-PMBL AM TR
• Description: 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
• Manufacturer: Micrel Inc

Specifications of KSZ8842-PMBL AM TR

• Number Of Primary Switch Ports: 2
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog/Digital
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 3.5V
• Operating Supply Voltage (min): 3.1V
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Micrel, Inc.
Features
Switch Management
• Non-blocking switch fabric assures fast packet delivery
• Fully compliant with IEEE802.3u standards
• Full-duplex IEEE 802.3x flow control (Pause) with force
• Half-duplex back pressure flow control
Advanced Switch Management
• IEEE 802.1Q VLAN support for up to 16 groups (full-
• VLAN ID tag/untag options, per port basis
• IEEE 802.1p/Q tag insertion or removal on a per-port
• Programmable rate limiting at the ingress and egress
• 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
• IGMP v1/v2 snooping support for multicast packet
• IPV6 Multicast Listener Discovery (MLD) snooping
Monitoring
• Port mirroring/monitoring/sniffing: ingress and/or egress
• Management information base (MIB) counters for fully
• 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
• The PCI control/status registers are used to
• Switch registers are used to support transceiver control
QoS/CoS Packets Prioritization Support
• Per port, 802.1p and DiffServ based
• Re-mapping of 802.1p priority field on a per port basis
October 2007
by utilizing a 1K entry MAC Address look-up engine and
a store-and-forward architecture
mode option
range of VLAN IDs)
basis (egress)
port
identify the ingress port and to specify the egress port
filtering
support
traffic to any port
compliant statistics gathering: 32 MIB counters per port
and configure the PCI interface
communicate between the host and KSZ8842-
PMQL/PMBL
and status. They are configurable on-the-fly (port-
priority, 802.1p/d/Q, etc.)
2
Power Modes, Packaging, and Power Supplies
• Full-chip hardware power-down (register configuration
• Per port-based software power-save on PHY (idle link
• Single power supply: 3.3V
• Commercial Temperature Range: 0°C to +70°C
• Industrial Temperature Range: –40°C to +85°C
• Available in 128-pin PQFP and 100-ball LFBGA
Additional Features
In addition to offering all of the features of an integrated
Layer-2 managed switch, the KSZ8842-PMQL/PMBL
offers:
• Repeater mode capabilities to allow for cut through in
• Dynamic buffer memory scheme essential for
• 2-Port switch with a 32-bit/33MHz PCI processor
• Micrel LinkMD
• Hewlett Packard (HP) Auto MDI-X crossover with
• Four priority queues to handle voice, video, data, and
• Ability to transmit and receive jumbo frame sizes up to
Applications
• Video Distribution Systems
• High-end Cable, Satellite, and IP set-top boxes
• Video over IP
• Voice over IP (VoIP) and Analog Telephone Adapters
• Industrial Control in Latency Critical Applications
• Motion Control
• Industrial Control Sensor Devices (Temperature,
• Security and Surveillance Cameras
Markets
• Fast Ethernet
• Embedded Ethernet
• Industrial Ethernet
not saved) provides for low power dissipation
detection, register configuration preserved)
latency critical Industrial Ethernet or Embedded
Ethernet applications
applications such as Video over IP where image jitter is
unacceptable
interface.
length, diagnose faulty cables, and determine distance-
to-fault
disable and enable options
control packets
1916 bytes
(ATA)
Pressure, Levels, and Valves)
®
cable diagnostics to determine cable
KSZ8842-PMQL/PMBL
M9999-100207-1.5