KS8999_11 MICREL [Micrel Semiconductor], KS8999_11 Datasheet - Page 4

• Manufacturer Part Number: KS8999_11
• Description: Integrated 9-Port 10/100 Switch with PHY and Frame Buffer
• Manufacturer: MICREL [Micrel Semiconductor]

January 2005
Micrel, Inc.
Contents
System Level Applications.............................................................................................................................................6
Pin Configuration ............................................................................................................................................................7
Pin Description ................................................................................................................................................................8
I/O Grouping ..................................................................................................................................................................14
I/O Description...............................................................................................................................................................14
Functional Overview: Physical Layer Transceiver ....................................................................................................19
Functional Overview: Switch Core ..............................................................................................................................21
MII Interface Operation .................................................................................................................................................23
SNI Interface (7-wire) Operation ..................................................................................................................................25
Programmable Features ...............................................................................................................................................25
VLAN Operation.............................................................................................................................................................26
Station MAC Address (control frames only) ..............................................................................................................27
EEPROM Operation.......................................................................................................................................................27
Optional CPU Interface .................................................................................................................................................28
100BaseTX Transmit ................................................................................................................................................19
100BaseTX Receive .................................................................................................................................................19
PLL Clock Synthesizer..............................................................................................................................................19
Scrambler/De-scrambler (100BaseTX only).............................................................................................................19
100BaseFX Operation ..............................................................................................................................................19
100BaseFX Signal Detection....................................................................................................................................19
100BaseFX Far End Fault ........................................................................................................................................19
10BaseT Transmit ....................................................................................................................................................19
10BaseT Receive .....................................................................................................................................................19
Power Management..................................................................................................................................................20
MDI/MDI-X Auto Crossover ......................................................................................................................................20
Auto-Negotiation .......................................................................................................................................................20
Address Look-Up ......................................................................................................................................................21
Learning ....................................................................................................................................................................21
Migration ...................................................................................................................................................................21
Aging.........................................................................................................................................................................21
Forwarding ................................................................................................................................................................21
Switching Engine ......................................................................................................................................................21
MAC Operation .........................................................................................................................................................22
Broadcast Storm Protection......................................................................................................................................22
Priority Schemes.......................................................................................................................................................25
Per Port Method........................................................................................................................................................25
802.1p Method..........................................................................................................................................................25
IPv4 DSCP Method...................................................................................................................................................25
Other Priority Considerations....................................................................................................................................25
Power Save Mode ..............................................................................................................................................20
Backoff Algorithm ...............................................................................................................................................22
Late Collision......................................................................................................................................................22
Illegal Frames.....................................................................................................................................................22
Flow Control .......................................................................................................................................................22
Half Duplex Back Pressure ................................................................................................................................22
Inter Packet Gap (IPG).......................................................................................................................................22
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KS8999
KS8999