參數(shù)資料
型號: 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): 58/158頁
文件大?。?/td> 1084K
代理商: L80227
Draft 6/5/00
2-38
Functional Description
Copyright 1999 by LSI Logic Corporation. All rights reserved.
at the PLED1n output. Set the PLED2_[1:0] bits in the same register to
0b11 (normal). When the PLED1n pin is programmed to be a Full Duplex
detect output, it is asserted LOW when the device is configured for Full
Duplex operation. The PLED1n output has both pullup and pulldown
driver transistors and a weak pullup resistor, so it can drive an LED from
either V
DD
or GND and can also drive a digital input.
See
Section 2.3.13, “LED Drivers,” page 2-31
for more details on how to
program the LED output pins to indicate various conditions.
2.6.3 Loopback
2.6.3.1 Internal CRS Loopback
TX_EN is internally looped back onto CRS during every transmit packet.
This internal CRS loopback is disabled during collision, in Full-Duplex
mode, and in the Link Fail State. In 10 Mbits/s mode, internal CRS
loopback is also disabled when jabber is detected.
2.6.3.2 Diagnostic Loopback
Setting the loopback bit (LPBK) in the MI serial port Control register
selects the diagnostic loopback mode. When diagnostic loopback is
enabled, the TXD[3:0] data is looped back onto RXD[3:0], TX_EN is
looped back onto CRS, RX_DV operates normally, the TP receive and
transmit paths are disabled, the transmit link pulses are halted, and the
Half/Full Duplex modes do not change.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L80227/B 制造商:LSI Corporation 功能描述: 制造商:LSI Corporation 功能描述:L80227/B
L80227/BI 制造商:LSI Corporation 功能描述:L80227/BI
L80227FR 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN multi-function counter / timer, universal 85-264 Vac power, two
L80227-I 制造商:LSI Corporation 功能描述:STD CELL ASIC
L80227-I-LEADFREE 制造商:LSI Corporation 功能描述:796000124413