參數(shù)資料
型號: KSZ8873FLLI
廠商: Micrel Inc
文件頁數(shù): 32/115頁
文件大小: 0K
描述: IC ETHERNET SWITCH 3PORT 64LQFP
產品培訓模塊: KSZ8873 Ethernet Switches
標準包裝: 160
控制器類型: 以太網開關控制器
接口: MII
電源電壓: 1.8V,2.5V,3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應商設備封裝: 64-LQFP(10x10)
包裝: 托盤
其它名稱: 576-3632
KSZ8873FLLI-ND
Micrel, Inc.
KSZ8873MLL/FLL/RLL
September 20, 2013
23
Revision 1.6
Auto-Negotiation
The KSZ8873MLL/FLL/RLL conforms to the auto-negotiation protocol, defined in Clause 28 of the IEEE 802.3u
specification.
Auto-negotiation allows unshielded twisted pair (UTP) link partners to select the best common mode of operation. In auto-
negotiation, link partners advertise their capabilities across the link to each other. If auto-negotiation is not supported or
the KSZ8873MLL/FLL/RLL link partner is forced to bypass auto-negotiation, the KSZ8873MLL/FLL/RLL sets its operating
mode by observing the signal at its receiver. This is known as parallel detection, and allows the KSZ8873MLL/FLL/RLL to
establish link by listening for a fixed signal protocol in the absence of auto-negotiation advertisement protocol.
The link up process is shown in Figure 3:
Start Auto Negotiation
Force Link Setting
Listen for 10BASE-T
Link Pulses
Listen for 100BASE-TX
Idles
Attempt Auto
Negotiation
Link Mode Set
Bypass Auto Negotiation
and Set Link Mode
Link Mode Set ?
Parallel
Operation
Join
Flow
N
o
Yes
No
Figure 3. Auto-Negotiation and Parallel Operation
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