參數(shù)資料
型號(hào): RTL8201BL
廠商: Electronic Theatre Controls, Inc.
英文描述: REALTEK SINGLE CHIP SINGLE PORT 10/100M FAST ETHERNET PHYCEIVER RTL8201BL
中文描述: 瑞昱單片單端口10/100M自適應(yīng)快速以太網(wǎng)PHYCEIVER RTL8201BL
文件頁數(shù): 20/29頁
文件大小: 335K
代理商: RTL8201BL
RTL8201BL
2002-03-29
Rev.1.2
20
7.12 Far End Fault Indication (FEFI)
The MII Reg.1.4 (Remote Fault) is the FEFI bit when 100FX mode is enabled which indicates that FEFI has
been detected. FEFI is an alternative in-band signaling method which is composed of 84 consecutive ‘1’
followed by one ‘0’. From the point of view of the RTL8201BL, when this pattern is detected three times,
Reg.1.4 is set, which means the transmit path (the Remote side’s receive path) has a problem. On the other hand,
the incoming signal failure in causing a link OK will force the RTL8201BL to start sending this pattern, which
in turn causes the remote side to detect a Far-End-Fault. This means that the receive path has a problem from the
point of view of the RTL8201BL. The FEFI mechanism is used only in 100Base-FX mode.
3.3V
3.3V
1.2V
bandgap
voltage
2.5V-drived
circuit
3.3V-drived
circuit
RTL8201B(L)
+
-
Error Amp
MOSFET P
Ferrite Bead
22uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
Ferrite Bead
AVDD33(pin36)
PWFBOUT(pin32)
PWFBIN(pin8)
DVDD33(pin14)
DVDD33(pin48)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RTL8201BL-LF 制造商:Realtek Semiconductor 功能描述:
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