參數(shù)資料
型號： KSZ8997
廠商： Micrel Inc
文件頁數(shù)： 34/39頁
文件大?。?/td> 0K
描述： IC SWITCH 10/100 8PORT 128PQFP
標(biāo)準(zhǔn)包裝： 66
系列： *
類型： *
應(yīng)用： *
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤
產(chǎn)品目錄頁面： 1081 (CN2011-ZH PDF)
其它名稱： 576-1043
Micrel, Inc.
KS8997/KSZ8997
February 2007
4
M9999-022807-1.1
Contents
System Level Applications ................................................................................................................................................6
Pin Description ..................................................................................................................................................................7
I/O Grouping....................................................................................................................................................................11
I/O Descriptions...............................................................................................................................................................11
Pin Configuration.............................................................................................................................................................14
Functional Overview: Physical Layer Transceiver ..........................................................................................................15
100BaseTX Transmit...................................................................................................................................................15
100BaseTX Receive....................................................................................................................................................15
PLL Clock Synthesizer ................................................................................................................................................15
Scrambler/De-Scrambler (100BaseTX only)...............................................................................................................15
10BaseT Transmit .......................................................................................................................................................15
10BaseT Receive ........................................................................................................................................................15
Power Management ....................................................................................................................................................15
Power Save Mode
..............................................................................................................................................15
MDI/MDI-X Auto Crossover.........................................................................................................................................16
Auto-Negotiation..........................................................................................................................................................16
Functional Overview: Switch Core ..................................................................................................................................17
Address Look-Up.........................................................................................................................................................17
Learning.......................................................................................................................................................................17
Migration......................................................................................................................................................................17
Aging ...........................................................................................................................................................................17
Forwarding...................................................................................................................................................................17
Switching Engine.........................................................................................................................................................17
MAC (Media Access Controller) Operation .................................................................................................................18
Inter-Packet Gap (IPG)
......................................................................................................................................18
Backoff Algorithm
...............................................................................................................................................18
Late Collision
......................................................................................................................................................18
Illegal Frames
.....................................................................................................................................................18
Flow Control
.......................................................................................................................................................18
Half-Duplex Back Pressure
................................................................................................................................18
Broadcast Storm Protection
...............................................................................................................................18
Programmable Features .................................................................................................................................................19
Priority Schemes .........................................................................................................................................................19
Per Port Method ..........................................................................................................................................................19
802.1p Method ............................................................................................................................................................19
IPv4 DSCP Method .....................................................................................................................................................19
Other Priority Considerations ......................................................................................................................................19
VLAN Operation ..............................................................................................................................................................20
Station MAC Address (control frames only)....................................................................................................................21
EEPROM Operation ........................................................................................................................................................21
EEPROM Memory Map...............................................................................................................................................21
General Control Register.............................................................................................................................................21
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