參數(shù)資料
型號: 9880
廠商: Intel Corp.
英文描述: Advanced 10/100 Repeater with Intergrated Management
中文描述: 高級10/100中繼器與綜合管理
文件頁數(shù): 44/118頁
文件大?。?/td> 1648K
代理商: 9880
LXT9860/9880
Advanced 10/100 Repeater with Integrated Management
44
Datasheet
Document #: 248987
Revision#: 003
Rev Date: 08/07/01
3.7.6.1
LED Mode 1
Mode 1 operations are described in
Table 15
.
Table 15. LED Mode 1 Indications
LED
Operating Mode
Hardware Control
1
Software
Control
On
Blink
Off
PORT
n
LED1
10 Mbps operation
Link_OK, not
Port_Partitioned
N/A
Any other state
Off via port
LED
Control
Register
100 Mbps operation
PORT
n
LED2
10 Mbps operation
Link_OK,
Port_Partitioned
100 Mbps operation
PORT
n
LED3
Auto-
negotiate
enabled
AUTOBLINK
active
100 Mbps
Link_OK
Not Link_OK
(Fast Blink)
10 Mbps
Link_OK
AUTOBLINK
inactive
N/A
Auto-negotiate disabled
100 Mbps mode
selected
Link_Enabled
N/A
10 Mbps mode
selected
Link_Enabled
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 LXT98x0 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 LXT98x0 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
N/A
Manager
Present
Any
Mgr_Present
N/A
Not
Mgr_Present
1. Refer to Table 13: LED Terms, which defines all key terms used in this section.
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