hbwhelp@micrel.com or (408) 955-1690 2.2.2 MC (Media " />
參數(shù)資料
型號: KSZ8993FL
廠商: Micrel Inc
文件頁數(shù): 16/100頁
文件大小: 0K
描述: IC CONV MED 10/100 SGL 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: 576-1035
Micrel, Inc.
KS8993F/FL
June 2009
22
M9999-062509
hbwhelp@micrel.com or (408) 955-1690
2.2.2
MC (Media Converter) Mode
MC (Media Converter) mode is selected and configured using hardware pins: MCCS and MCHS.
Terminal MC mode without port 3 support is enabled when MCCS=0 and MCHS=1. In this mode, port 1 is 100BASE-
FX, port 2 is 10BASE-TX or 100BASE-TX and port 3 is disabled. Terminal MC function is enabled, and the OAM sub-
layer responds to the center MC with OAM frames, such as condition inform reply, loop mode start reply, and loop
mode stop reply.
Terminal MC mode with port 3 support is enabled when MCCS=1 and MCHS=1. In this mode, port 1 is 100BASE-FX,
port 2 is 10BASE-T or 100BASE-TX and port 3 supports MII or SNI interface. Terminal MC function is enabled, and
the OAM sub-layer responds to the center MC with OAM frames, such as condition inform reply, loop mode start reply,
and loop mode stop reply.
Center MC mode with port 3 support is enabled when MCCS=1 and MCHS=0. In this mode, port 1 is 100BASE-FX,
port 2 is 10BASE-T or 100BASE-TX and port 3 supports MII or SNI interface. Center MC function is enabled, and the
OAM sub-layer generates and sends OAM frames, such as condition inform request, loop mode start request and loop
mode stop request to the terminal MC.
2.2.3
MC Loop Back Function
Media
Converter
Center office
CPU
Media
Converter
management
OAM frame
Request command
Center
Terminal
OAM frame
Reply command
Gateway/
Router
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