KSZ8842-PMQL Micrel Inc, KSZ8842-PMQL Datasheet - Page 2
![2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )](/photos/6/81/68152/576-128-pqfp_sml.jpg)
KSZ8842-PMQL
Manufacturer Part Number
KSZ8842-PMQL
Description
2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI Bus Interface( )
Manufacturer
Micrel Inc
Specifications of KSZ8842-PMQL
Controller Type
Ethernet Switch Controller
Interface
PCI
Voltage - Supply
3.1 V ~ 3.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
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
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 Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
576-1636 - BOARD EVALUATION KSZ8842-PMQL
Current - Supply
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Other names
576-1513-5
KSZ8842-PMQL
KSZ8842-PMQL
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
KSZ8842-PMQLI
Manufacturer:
TI
Quantity:
3 100
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