KSZ8851-16MLLU TR Micrel, KSZ8851-16MLLU TR Datasheet - Page 4

• Manufacturer Part Number: KSZ8851-16MLLU TR
• Description: Ethernet ICs Single-Port Ethernet Controller (Automotive Grade)
• Manufacturer: Micrel

Specifications of KSZ8851-16MLLU TR

• Rohs: yes
• Product: Ethernet Controllers
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT

Contents
Pin Configuration ................................................................................................................................................10
Pin Description....................................................................................................................................................11
Strapping Options ...............................................................................................................................................14
Functional Description ........................................................................................................................................15
Functional Overview ...........................................................................................................................................15
May 2012
Micrel, Inc.
Power Management....................................................................................................................................15
Normal Operation Mode..............................................................................................................................15
Energy Detect Mode ...................................................................................................................................15
Soft Power Down Mode ..............................................................................................................................16
Power Saving Mode....................................................................................................................................16
Wake-on-LAN .............................................................................................................................................16
Detection of Energy ....................................................................................................................................16
Detection of Linkup .....................................................................................................................................16
Wake-up Packet..........................................................................................................................................16
Magic Packet
Physical Layer Transceiver (PHY) ..............................................................................................................17
100BASE-TX Transmit................................................................................................................................17
100BASE-TX Receive.................................................................................................................................17
PLL Clock Synthesizer (Recovery) .............................................................................................................18
Scrambler/De-scrambler (100BASE-TX only).............................................................................................18
10BASE-T Transmit ....................................................................................................................................18
10BASE-T Receive .....................................................................................................................................18
MDI/MDI-X Auto Crossover ........................................................................................................................19
Straight Cable .............................................................................................................................................20
Crossover Cable .........................................................................................................................................21
Auto Negotiation .........................................................................................................................................21
LinkMD
Access ........................................................................................................................................................23
Usage..........................................................................................................................................................23
Media Access Control (MAC) Operation.....................................................................................................23
Inter Packet Gap (IPG) ...............................................................................................................................23
Back-Off Algorithm......................................................................................................................................23
Late Collision ..............................................................................................................................................23
Flow Control................................................................................................................................................23
Half-Duplex Backpressure ..........................................................................................................................24
Address Filtering Function ..........................................................................................................................24
Clock Generator..........................................................................................................................................25
Bus Interface Unit (BIU) ..............................................................................................................................26
Supported Transfers ...................................................................................................................................26
Physical Data Bus Size...............................................................................................................................26
Little and Big Endian Support .....................................................................................................................26
Asynchronous Interface ..............................................................................................................................26
BIU Summation...........................................................................................................................................27
Queue Management Unit (QMU) ................................................................................................................27
Transmit Queue (TXQ) Frame Format........................................................................................................27
Frame Transmitting Path Operation in TXQ ...............................................................................................29
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Cable Diagnostics ........................................................................................................................23
TM
...........................................................................................................................................17
4
KSZ8851-16MLL/MLLI
M9999-050112-2.1