Datasheet KSZ8842-PMQL, KSZ8842-PMBL (Microchip) - 4

Micrel, Inc. KSZ8842-PMQL/PMBL Contents
Pin Configuration . 9
Pins Description of KSZ8842-PMQL. 11
Functional Description . 20
Functional Overview: PCI Bus Interface Unit. 20
PCI Bus Interface. 20
TXDMA Logic and TX Buffer Manager . 20
RXDMA Logic and RX Buffer Manager . 20
Functional Overview: Physical Layer Transceiver (PHY) . 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
Straight Cable. 22
Crossover Cable. 23
Auto Negotiation . 23
LinkMD Cable Diagnostics. 24
Access. 24
Usage . 25
Functional Overview: MAC and Switch. 25
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
Advanced Switch Functions . 29
Spanning Tree Support. 29
IGMP Support . 30
“IGMP” Snooping. 30
“Multicast Address Insertion” in the Static MAC Table. 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 October 2007 4 M9999-100207-1.5