參數(shù)資料
型號(hào): LAN91C96I
廠商: SMSC Corporation
英文描述: NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
中文描述: 非PCI單芯片以太網(wǎng)控制器全DUPLES
文件頁數(shù): 79/110頁
文件大?。?/td> 655K
代理商: LAN91C96I
Non-PCI Single-Chip Full Duplex Ethernet Controller
SMSC DS – LAN91C96I
Page 79
Rev.
11/18/2004
DATASHEET
9.9
Network Interface
The LAN91C96I includes both an AUI interface for thick and thin coax applications and a 10BASE-T
interface for twisted pair applications. Functions common to both are:
1. Manchester encoder/decoder to convert NRZ data to Manchester encoded data and back.
2. A 32ms jabber timer to prevent inadvertently long transmissions. When 'jabbing' occurs, the
transmitter is disabled, automatic loopback is disabled (in 10BASE-T mode), and a collision indication
is given to the controller. The interface 'unjabs' when the transmitter has been idle for a minimum of
256 ms.
3. A phase-lock loop to recover data and clock from the Manchester data stream with up to plus or minus
18ns of jitter.
4. Diagnostic loopback capability.
5. LED drivers for collision, transmission, reception, and jabber.
9.10 10BASE-T
The 10BASE-T interface conforms to the twisted pair MAU addendum to the 802.3 specification. On the
transmission side, it converts the NRZ data from the controller to Manchester data and provides the
appropriate signal level for driving the media. Signal are predistorted before transmission to minimize ISI.
The collision detection circuitry monitors the simultaneous occurrence of received signals and transmitted
data on the media. During transmission, data is automatically looped back to the receiver except during
collision periods, in which case the input to the receiver is network data. During collisions, should the
receive input go idle prior to the transmitter going idle, input to the receiver switches back to the transmitter
within nine bit times. Following transmission, the transmitter performs a SQE test. This test exercises the
collision detection circuitry within the 10BASE-T interface.
The receiver monitors the media at all times. It recovers the clock and data and passes it along to the
controller. In the absence of any receive activity, the transmitter is looped back to the receiver. In addition,
the receiver performs automatic polarity correction. The 10BASE-T interface performs link integrity tests
per section 14.2.1.7 of 802.3, using the following values:
1. Link_loss_timer: 64 ms
2. Link_test_min_timer: 4 ms
3. Link_count: 2
4. Link_test_max_timer: 64 ms
The state of the link is reflected in the EPHSR.
9.11 AUI
The LAN91C96I also provides a standard six wire AUI interface to a coax transceiver.
相關(guān)PDF資料
PDF描述
LAN91C96I-MS NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
LAN91C96I-MU NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
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LAN91C96ITQFP NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
LANF72351D ETHERNET 10BASE-T LAN FILTER MODULES
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LAN91C96I_07 制造商:SMSC 制造商全稱:SMSC 功能描述:Non-PCI Single-Chip Full Duplex Ethernet Controller
LAN91C96IMS 制造商:Microchip Technology Inc 功能描述:
LAN91C96I-MS 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
LAN91C96I-MU 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
LAN91C96IQFP 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray