參數(shù)資料
型號(hào)： 84221
廠商： LSI Corporation
英文描述： Quad 100BaseTX/100BaseFX/10BaseT Physical Layer Device （Highly Integrated Ethernet Transceiver For Twisted Pair And Fiber Ethernet Applications）(四通道100BaseTX/100BaseFX/10BaseT 物理層處理器（高度集成的以太網(wǎng)雙絞線和光纖數(shù)據(jù)收發(fā)器）)
中文描述： 四100BaseTX/100BaseFX/10BaseT物理層裝置（高度集成的以太網(wǎng)收發(fā)器，雙絞線和光纖以太網(wǎng)的應(yīng)用）（四通道100BaseTX/100BaseFX/10BaseT物理層處理器（高度集成的以太網(wǎng)雙絞線和光纖數(shù)據(jù)收發(fā)器） ）
文件頁數(shù)： 21/70頁
文件大小： 1017K
代理商： 84221
MD400184/A
21
84221
The standard link integrity algorithms are used solely to
establish an active link to and from a remote device.
There are different standard link integrity algorithms for 10
and 100 Mbps modes. The AutoNegotiation algorithm is
used for two purposes:
To automatically configure the device for either 10/100
Mbps and Half/Full Duplex modes
Establish an active link to and from a remote device
The standard link integrity and AutoNegotiation algorithms
are described below.
2.13.2 10Base-T Link Integrity Algorithm
The 84221 uses the same 10Base-T link integrity
algorithm that is defined in IEEE 802.3 clause 14. This
algorithm uses normal link pulses, referred to as NLP’s
and transmitted during idle periods, to determine if a
device has successfully established a link with a remote
device (called Link Pass state). The transmit link pulse
meets the template defined in IEEE 802.3 Clause 14 and
shown in Figure 7. Refer to IEEE 802.3 Clause 14 for
more details if needed.
2.13.3 100Base-TX Link Integrity Algorithm
Since 100Base-TX is defined to have an active idle signal,
then there is no need to have separate link pulses like
those defined for 10Base-T The 84221 uses the squelch
criteria and descrambler synchronization algorithm on the
input data to determine if the device has successfully
established a link with a remote device (called Link Pass
state). Refer to IEEE 802.3 for details on both algorithms.
2.13.4 AutoNegotiation Algorithm
As stated previously, the AutoNegotiation algorithm is
used for two purposes:
To automatically configure the device for either 10/100
Mbps and Half/Full Duplex modes
To establish an active link to and from a remote device
The AutoNegotiation algorithm is the same algorithm that
is defined in IEEE 802.3 Clause 28. AutoNegotiation uses
a burst of link pulses, called fast link pulses and referred to
as FLP’s, to pass up to 16 bits of signaling back and forth
between the 84221 and a remote device. The transmit
a. Short Bit
b. Long Bit
3.1 V
Slope 0.5 V/ns
585 mV
PW
0
3.1 V
Slope 0.5 V/ns
585 mV
PW/4
0
3PW/4
PW
585 mV sin ( *
585 mV sin ( *
585 mV sin [2 (t - PW2)/PW]
Figure 5. TP Input Voltage Template - 10 Mbps
相關(guān)PDF資料
PDF描述
84301 84301 4-Port Fast Ethernet Controller manual 3/98
84301 4-Port Fast Ethernet Controller( 4端口快速以太網(wǎng)控制器)
84717000 MINIATURNAEHERUNGSSCHALTER 4MM GLATT PNP
84717002 MINIATURNAEHERUNGSSCHALTER M5 PNP
84717100 MINIATURNAEHERUNGSSCHALTER 4MM GLATT NPN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
842225 REV A1 制造商:Aavid Thermalloy 功能描述:- Bulk
84222C 功能描述:固定電感器 2.2uH 2.0A Mini SMT Power RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
8422303301B 制造商:ESSEX 功能描述:SPDT 277V. COIL ENCLOSED RELAY
84223C 功能描述:固定電感器 22uH 0.6A Mini SMT Power RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
84224C 功能描述:固定電感器 220uH 0.2A Mini SMT Power RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
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