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參數(shù)資料
| 型號： | 9883 |
| 廠商： | Intel Corp. |
| 英文描述： | Advanced 10/100 Umnmanaged Repeater |
| 中文描述： | 高級10/100 Umnmanaged直放站 |
| 文件頁數(shù)： | 27/56頁 |
| 文件大小： | 719K |
| 代理商： | 9883 |
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Advanced 10/100 Unmanaged Repeater
—
LXT9883/9863
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
27
Table 13. LED Mode 3 Indications
LED
Operating Mode
Hardware Control
On
Blink
Off
PORT
n
LED1
10 Mbps operation
Link_OK, not
Port_Partitioned
N/A
Any other state
100 Mbps operation
PORT
n
LED2
Any
Rcv_Activity
(20 ms pulse)
2
N/A
Any other state
PORT
n
LED3
AUTOBLINK active
100M Link_OK
No Link_OK
(Fast Blink)
10M Link_OK
AUTOBLINK inactive
100M mode selected
N/A
10M mode selected
Collision and
Activity LEDs
Any
The collision and activity LEDs are on a Per Segment basis. Pulse
stretchers are used to extend the on-time for the LEDs. For every on-
cycle of the stretched LEDs, an off-cycle, with the same period as the on-
cycle, always follows.
The collision LEDs turn on for approximately 120
μ
s when the LXT98x3
detects a collision on the segments. During the time that the LED is on,
any additional collisions is ignored by the collision LED logic.
The activity LEDs turn on for approximately 4 ms when the LXT98x3
detects any activity on the segments. During the time that the LED is on,
any additional activity is ignored by the activity LED logic.
Global Fault
Any
Any Port_Partitioned
or
RPS_Fault and
RPS_Present
N/A
Any other state
RPS Fault
Any
RPS_Present,
RPS_Fault
1. Refer to
Table 10
: LED Terms, which defines all key terms used in this section.
2. Receive activity is stretched to a 20 ms wide pulse. For every on-cycle of the stretched LEDs, an off-cycle, with the same
period as the on-cycle, always follows.
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