參數(shù)資料
型號： LXT980QC
英文描述： LAN HUB CONTROLLER
中文描述： 局域網(wǎng)集線器控制器
文件頁數(shù)： 40/96頁
文件大小： 1309K
代理商： LXT980QC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
40
Datasheet
2.6
Serial Management I/F
The high-speed Serial Management Interface (SMI) provides access to repeater MIB variables,
RMON Statistics attributes and status and control information. A network manager can access the
interface through a simple serial communications controller. The interface is designed to be used in
a multi-drop configuration, allowing multiple LXT980 devices to be managed from one common
line.
The interface consists of a data input line (SRX), data output line (STX), and a clock (SERCLK). It
can operate at up to 2 Mbps. The interface operates on a simple command response model, with the
network manager as the master and the LXT980 devices as slaves.
Figure 10
is a simplified view of
typical serial management interface architecture. Refer to
Figure 24 on page 58
for circuit details.
Figure 9. MII Timing Issues
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
Class II RPTR
Prop Delay
≤
46 BT
TP
MII
MAC
Class II RPTR
Prop Delay
≤
46 BT
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
Class II RPTR
Prop Delay
≤
46 BT
TP
MII
Class II RPTR
Prop Delay
≤
46 BT
PHY
Prop Delay
≤
20 BT
Prop Delay
≤
112 BT
TP
TP
TP
LXT980 Port 5 (MII)
operating in MAC Mode,
connected to a PHY device.
LXT980 Port 5 (MII)
operating in PHY Mode,
connected to a MAC device.
TP Ports
PHY
LXT980
Meets Class II
RPTR Prop Delay
( ≤
46 BT )
TP Port
MII Port
Does Not Meet
Class II RPTR
Prop Delay
P1
P2
P3
P4
P5
MII Port
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
MII
TP
PHY
Prop Delay
≤
20 BT
MAC
Class II RPTR
Prop Delay
≤
46 BT
Class II RPTR
Prop Delay
≤
46 BT
MII-to-MII
Prop Delay
≤
132 BT
TP
Propagation Delay Requirements per IEEE 802.3u:
- PHY prop delay (MII-TP) must be
≤
20 BT
- Class II Repeater prop delay (TP-TP) must be
≤
46 BT
PHY-to-MAC
Prop Delay
≤
132 BT
A
B
C
D
相關(guān)PDF資料
PDF描述
LXT9860AHC Controller Miscellaneous - Datasheet Reference
LXT9860HC Controller Miscellaneous - Datasheet Reference
LXT9863HC LAN HUB CONTROLLER
LXT9880AGE Controller Miscellaneous - Datasheet Reference
LXT9880AHC Controller Miscellaneous - Datasheet Reference
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LXT9860 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced 10/100 Repeater with Intergrated Management
LXT9860AHC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference
LXT9860HC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference
LXT9863 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced 10/100 Umnmanaged Repeater
LXT9863HC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN HUB CONTROLLER
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*