參數(shù)資料
型號(hào): L80227
廠商: LSI CORP
元件分類: 網(wǎng)絡(luò)接口
英文描述: 10BASE-T/100BASE-TX Ethernet Physical Layer Device (PHY)(10BASE-T/100BASE-TX 以太網(wǎng)物理層處理器)
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封裝: LQFP-64
文件頁數(shù): 42/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
2-22
Functional Description
Copyright 1999 by LSI Logic Corporation. All rights reserved.
are detected during any 10
μ
s interval. When a loss of data is detected,
the receive squelch is turned on again.
2.3.8.4 Squelch (10 Mbits/s)
The TP squelch algorithm for 10 Mbits/s mode is identical to the
100 Mbits/s mode, except:
The 10 Mbits/s TP squelch algorithm is not used for link integrity, but
to sense the beginning of a packet
The receiver goes into the unsquelch state if the input voltage
exceeds the squelch levels for three bit times with alternating polarity
within a 50 to 250 ns interval
The receiver goes into the squelch state when SOI is detected
Unsquelch detection has no effect on link integrity (link pulses are
used in 10 Mbits/s mode for that purpose)
Start of packet is determined when the receiver goes into the
unsquelch state and CRS is asserted
The receiver meets the squelch requirements defined in IEEE 802.3
Clause 14.
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