KS8993M Micrel Inc, KS8993M Datasheet - Page 5

• Manufacturer Part Number: KS8993M
• Description: IC SWITCH 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993M

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• 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): 1.89/3.465V
• Operating Supply Voltage (min): 1.71/3.135V
• Power Dissipation: 800mW
• Supply Current: 0.1/0.19A
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1013 - BOARD EVAL EXPERIMENT KS8993M
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

Contents
List of Figures .........................................................................................................................................8
List of Tables...........................................................................................................................................8
Pin Description and I/O Assignment.....................................................................................................9
Pin Configuration..................................................................................................................................19
Functional Description .........................................................................................................................20
Functional Overview: Physical Layer Transceiver ............................................................................20
Functional Overview: MAC and Switch ..............................................................................................26
Advanced Switch Functions ................................................................................................................33
MII Management (MIIM) Registers .......................................................................................................44
Micrel, Inc.
April 2005
100BASE-TX Transmit.........................................................................................................................................................20
100BASE-TX Receive ..........................................................................................................................................................20
PLL Clock Synthesizer........................................................................................................................................................21
Scrambler/De-scrambler (100BASE-TX Only) ...................................................................................................................21
100BASE-FX Operation.......................................................................................................................................................21
100BASE-FX Signal Detection............................................................................................................................................21
100BASE-FX Far End Fault.................................................................................................................................................21
10BASE-T Transmit .............................................................................................................................................................21
10BASE-T Receive ..............................................................................................................................................................22
Power Management.............................................................................................................................................................22
MDI /MDI-X Auto Crossover................................................................................................................................................22
Auto Negotiation .................................................................................................................................................................24
Address Lookup ..................................................................................................................................................................26
Learning ...............................................................................................................................................................................26
Migration ..............................................................................................................................................................................26
Aging ....................................................................................................................................................................................26
Forwarding...........................................................................................................................................................................26
Switching Engine ................................................................................................................................................................29
MAC Operation ....................................................................................................................................................................29
MII Interface Operation........................................................................................................................................................30
SNI (7-Wire) Operation ........................................................................................................................................................31
MII Management Interface (MIIM) .......................................................................................................................................31
Serial Management Interface (SMI) ....................................................................................................................................32
Spanning Tree Support.......................................................................................................................................................33
Upstream Special Tagging Mode .......................................................................................................................................34
IGMP Support ......................................................................................................................................................................35
Port Mirroring Support........................................................................................................................................................35
IEEE 802.1Q VLAN Support ................................................................................................................................................35
QoS Priority Support...........................................................................................................................................................36
Rate Limiting Support .........................................................................................................................................................38
Configuration Interface .......................................................................................................................................................38
Loopback Support...............................................................................................................................................................43
Straight Cable ................................................................................................................................................................23
Register 0: MII Basic Control..........................................................................................................................................45
Crossover Cable ............................................................................................................................................................24
Inter Packet Gap (IPG) ..................................................................................................................................................29
Back-Off Algorithm.........................................................................................................................................................29
Late Collision .................................................................................................................................................................29
Illegal Frames ................................................................................................................................................................29
Flow Control...................................................................................................................................................................29
Half-Duplex Backpressure .............................................................................................................................................29
Broadcast Storm Protection ...........................................................................................................................................30
“IGMP” Snooping ...........................................................................................................................................................35
“Multicast Address Insertion” in the Static MAC Table...................................................................................................35
I
I
SPI Slave Serial Bus Configuration ...............................................................................................................................39
2
2
C Master Serial Bus Configuration ..............................................................................................................................38
C Slave Serial Bus Configuration ................................................................................................................................39
5
KS8993M/ML/MI
M9999-041205