參數(shù)資料
型號(hào): LXT9883HC
英文描述: LAN HUB CONTROLLER
中文描述: 局域網(wǎng)集線器控制器
文件頁(yè)數(shù): 33/96頁(yè)
文件大?。?/td> 1309K
代理商: LXT9883HC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
Datasheet
33
2.3.4.2
Activity LEDs
The activity LEDs turn on for approximately 4 ms when the LXT980 detects any activity on the
respective 10 Mbps or 100 Mbps segment. During the time that the activity LED is on, any
additional activity is ignored by the activity LED logic.
2.3.5
Global LEDs
These LED driver outputs indicate global status conditions.
2.3.5.1
Manager Present LED
When active, this LED indicates the presence of a manager in the system. It is not affected by LED
mode selection and does not allow software overrides.
2.3.5.2
Global Fault LED
The global fault LED indicates one or more of the following conditions: any port partitioned, any
port isolated or RPS fault. How the condition is indicated depends on the LED mode as shown in
Table 13
through
Table 15
.
Software Overrides of the Global Fault LED
Two bits in the global LED Control Register allow software overrides to control the global Fault
LED. Refer to
Table 69 on page 88
and
Table 73 on page 91
for coding and bit assignments.
2.3.5.3
Redundant Power Supply LED
The redundant power supply LED is controlled by the RPS_FLT and RPS_PRES pins. The
LED state reflects the states of these two inputs, depending on the LED mode selected as listed
in
Table 13
through
Table 15
.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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