參數(shù)資料
型號(hào)： KSZ8999I
廠商： Micrel Inc
文件頁(yè)數(shù)： 34/52頁(yè)
文件大?。?/td> 0K
描述： IC SWITCH 9-PORT 10/100 208PQFP
標(biāo)準(zhǔn)包裝： 24
系列： *
類(lèi)型： *
應(yīng)用： *
安裝類(lèi)型： 表面貼裝
封裝/外殼： 208-MQFP，208-PQFP
供應(yīng)商設(shè)備封裝： 208-PQFP（28x28）
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1081 (CN2011-ZH PDF)
配用： 576-1644-ND - BOARD EVALUATION FOR KSZ8999
其它名稱： 576-2128
KSZ8999I-ND
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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