KSZ8842-PMBL Micrel Inc, KSZ8842-PMBL Datasheet - Page 4

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

Specifications of KSZ8842-PMBL

• 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: 100-LFBGA
• 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): 70C
• Operating Temperature (min): 0C
• 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: Supplier Unconfirmed, Lead free / RoHS Compliant
• Other names: 576-3089

Micrel, Inc.
Contents
Pin Configuration .............................................................................................................................................................. 9
Pins Description of KSZ8842-PMQL.............................................................................................................................. 11
Functional Description ................................................................................................................................................... 20
Functional Overview: PCI Bus Interface Unit............................................................................................................... 20
Functional Overview: Physical Layer Transceiver (PHY) ........................................................................................... 20
Functional Overview: MAC and Switch......................................................................................................................... 25
Advanced Switch Functions .......................................................................................................................................... 29
October 2007
PCI Bus Interface.......................................................................................................................................................... 20
TXDMA Logic and TX Buffer Manager ......................................................................................................................... 20
RXDMA Logic and RX Buffer Manager ........................................................................................................................ 20
100BASE-TX Transmit.................................................................................................................................................. 20
100BASE-TX Receive................................................................................................................................................... 20
PLL Clock Synthesizer (Recovery) ............................................................................................................................... 21
Scrambler/De-scrambler (100BASE-TX Only).............................................................................................................. 21
10BASE-T Transmit ...................................................................................................................................................... 21
10BASE-T Receive ....................................................................................................................................................... 21
Power Management...................................................................................................................................................... 21
MDI/MDI-X Auto Crossover .......................................................................................................................................... 21
Auto Negotiation ........................................................................................................................................................... 23
LinkMD Cable Diagnostics............................................................................................................................................ 24
Address Lookup ............................................................................................................................................................ 25
Learning ........................................................................................................................................................................ 25
Migration ....................................................................................................................................................................... 25
Aging ............................................................................................................................................................................. 25
Forwarding .................................................................................................................................................................... 26
Switching Engine .......................................................................................................................................................... 27
MAC Operation ............................................................................................................................................................. 28
Inter Packet Gap (IPG) ................................................................................................................................................. 28
Back-Off Algorithm........................................................................................................................................................ 28
Late Collision ................................................................................................................................................................ 28
Illegal Packet Size......................................................................................................................................................... 28
Flow Control.................................................................................................................................................................. 28
Half-Duplex Backpressure ............................................................................................................................................ 28
Broadcast Storm Protection .......................................................................................................................................... 29
Repeater Mode ............................................................................................................................................................. 29
Clock Generator............................................................................................................................................................ 29
Spanning Tree Support................................................................................................................................................. 29
IGMP Support ............................................................................................................................................................... 30
IPv6 MLD Snooping ...................................................................................................................................................... 30
Port Mirroring Support................................................................................................................................................... 30
IEEE 802.1Q VLAN Support ......................................................................................................................................... 31
QoS Priority Support ..................................................................................................................................................... 31
Port-Based Priority........................................................................................................................................................ 31
802.1p-Based Priority ................................................................................................................................................... 32
DiffServ based Priority .................................................................................................................................................. 32
Rate Limiting Support ................................................................................................................................................... 32
MAC Filtering Function ................................................................................................................................................. 33
Straight Cable....................................................................................................................................................... 22
Crossover Cable................................................................................................................................................... 23
Access.................................................................................................................................................................. 24
Usage ................................................................................................................................................................... 25
“IGMP” Snooping.................................................................................................................................................. 30
“Multicast Address Insertion” in the Static MAC Table......................................................................................... 30
4
KSZ8842-PMQL/PMBL
M9999-100207-1.5