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參數(shù)資料
| 型號： | LXT916QC |
| 英文描述： | LAN Transceiver |
| 中文描述： | 網(wǎng)絡(luò)收發(fā)器 |
| 文件頁數(shù)： | 24/42頁 |
| 文件大?。?/td> | 561K |
| 代理商： | LXT916QC |
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LXT914
—
Flexible Quad Ethernet Repeater
24
Datasheet
2.7
Collision Handling
A collision occurs when two or more repeater ports receive simultaneously, or when the AUI CIP/
CIN signal is active. The LXT914 fully complies with the IEEE 802.3 collision specifications, both
in individual and multi-repeater applications. In multiple-repeater configurations, collision
signaling on the IRB allows all repeaters to share collision parameters, acting as a single large
repeater.
IRCOL is a digital open-drain pin. IRCFS is an analog/digital port. The IRCOL and IRCFS lines
are pulled up globally (i.e., each signal requires one pull-up resistor for all boards). If there are
eight 3-repeater boards in the system, all eight boards share a single pull-up resistor for IRCOL and
a single pull-up resistor for IRCFS. The global pull-up may be located on one of the boards, or on
the backplane. The IRCFS line requires a precision (± 1%) resistor.
The IRENA, IRDAT and IRDEN lines are each pulled up locally (one pull-up resistor per board) if
external bus drivers are used. If no bus drivers are used then only one global pull-up per signal is
used.
2.8
Security Mode
The LXT914 security mode is fully transparent to the user. In the External management mode, the
security feature is available for all four TP ports and the AUI port. In the Local mode, security is
available for the TP ports only (the SECAUI input is reassigned as FPS). The security inputs are
normally held Low to disable the security feature. Any input can independently be pulled High to
scramble the respective port for any given length of time. For applications which do not require
The security mode pins are real time response inputs. This allows the board designer to screen the
destination address with an application specific device and (on match of the destination address) to
assert the security input to jam the respective port for the given frame. This real time detection and
jam assertion method provides the flexibility to implement customer specific solutions. The
destination address decoding and security signal assertion functions can be integrated into the
external management device.
相關(guān)PDF資料 |
PDF描述 |
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| LXT917QC | LAN Transceiver |
| LXT9784BC | LAN TRANSCEIVER|OCTAL|BGA|324PIN|PLASTIC |
| LXT9784BE | LAN TRANSCEIVER|OCTAL|BGA|324PIN|PLASTIC |
| LXT9785BC | LAN TRANSCEIVER|OCTAL|BGA|241PIN|PLASTIC |
| LXT9785HC | LAN TRANSCEIVER|OCTAL|QFP|208PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT917 | 制造商:LVL1 制造商全稱:LVL1 功能描述:Multi-Port Hub Repeaters for Managed 10BASE-T Applications |
| LXT917QC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Transceiver |
| LXT918 | 制造商:LVL1 制造商全稱:LVL1 功能描述:Multi-Segment Hub Repeater |
| LXT918QC | 制造商:LVL1 制造商全稱:LVL1 功能描述:Multi-Segment Hub Repeater |
| LXT944 | 制造商:LVL1 制造商全稱:LVL1 功能描述:Quad Ethernet Interface Adapter |
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