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參數(shù)資料
| 型號： | KS8999I |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 34/52頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SWITCH 9-PORT 10/100 208-PQFP |
| 標準包裝： | 100 |
| 系列： | * |
| 類型： | * |
| 應用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 208-MQFP，208-PQFP |
| 供應商設備封裝： | 208-PQFP（28x28） |
| 包裝： | 散裝 |
| 配用： | 576-1023-ND - BOARD EVAL EXPERIMENT FOR KS8999 |
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KS8999
Micrel
KS8999
4
January 2005
Table of Contents
System Level Applications ......................................................................................................................................... 6
Pin Description ............................................................................................................................................................ 7
I/O Grouping
........................................................................................................................................................... 13
I/O Descriptions ......................................................................................................................................................... 13
Pin Configuration ...................................................................................................................................................... 19
Functional Overview: Physical Layer Transceiver ................................................................................................ 20
100BaseTX Transmit ........................................................................................................................................... 20
100BaseTX Receive ............................................................................................................................................ 20
PLL Clock Synthesizer ......................................................................................................................................... 20
Scrambler/De-scrambler (100BaseTX only) ........................................................................................................ 20
100BaseFX Operation ......................................................................................................................................... 20
100BaseFX Signal Detection ............................................................................................................................... 20
100BaseFX Far End Fault ................................................................................................................................... 20
10BaseT Transmit ............................................................................................................................................... 20
10BaseT Receive ................................................................................................................................................ 20
Power Management ............................................................................................................................................. 21
Power Save Mode ........................................................................................................................................ 21
MDI/MDI-X Auto Crossover ................................................................................................................................. 21
Auto-Negotiation .................................................................................................................................................. 21
Functional Overview: Switch Core .......................................................................................................................... 22
Address Look-Up ................................................................................................................................................. 22
Learning
........................................................................................................................................................... 22
Migration
........................................................................................................................................................... 22
Aging
........................................................................................................................................................... 22
Forwarding ........................................................................................................................................................... 22
Switching Engine ................................................................................................................................................. 22
MAC Operation .................................................................................................................................................... 22
Inter Packet Gap (IPG) ................................................................................................................................ 22
Backoff Algorithm ......................................................................................................................................... 23
Late Collision ............................................................................................................................................... 23
Illegal Frames .............................................................................................................................................. 23
Flow Control ................................................................................................................................................. 23
Half-Duplex Back Pressure .......................................................................................................................... 23
Broadcast Storm Protection ................................................................................................................................. 23
MII Interface Operation .............................................................................................................................................. 24
SNI Interface (7-wire) Operation ............................................................................................................................... 26
Prorammable Features .............................................................................................................................................. 26
Priority Schemes .................................................................................................................................................. 26
Per Port Method ................................................................................................................................................... 26
802.1p Method ..................................................................................................................................................... 26
IPv4 DSCP Method .............................................................................................................................................. 26
Other Priority Considerations ............................................................................................................................... 26
VLAN Operation ......................................................................................................................................................... 27
Station MAC Address ................................................................................................................................................ 27
EEPROM Operation ................................................................................................................................................... 28
Optional CPU Interface ............................................................................................................................................. 28
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