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)： 25/56頁
文件大小： 719K
代理商： 9883
Advanced 10/100 Unmanaged Repeater
—
LXT9883/9863
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
25
3.6.6.1
LED Mode 1
Mode 1 operations are described in
Table 11
.
3.6.6.2
LED Mode 2
Mode 2 operations are described in
Table 12
.
Table 11. LED Mode 1 Indications
LED
Operating Mode
Hardware Control
1
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
10 Mbps operation
Link_OK,
Port_Partitioned
100 Mbps operation
PORT
n
LED3
AUTOBLINK active
100M
Link_OK
Not Link_OK
(Fast Blink)
10M Link_OK
AUTOBLINK inactive
N/A
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 are 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.
On
Blink
Off
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 11
: LED Terms, which defines all key terms used in this section.
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