參數(shù)資料
型號： 9863
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)： 23/56頁
文件大?。?/td> 719K
代理商： 9863
Advanced 10/100 Unmanaged Repeater
—
LXT9883/9863
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
23
3.6.4.1
Serial LED Signals
The LED serial interface bus consists of three LXT98x3 outputs: clock (LEDCLK), parallel load
clock (LEDLAT), and output data (LEDDAT). Refer to
Table 5 on page 14
for signal descriptions
and to
Figure 14 on page 40
for an illustration of the LED serial interface circuit. Refer to
Figure 6
and
Table 8
for details on the LED serial bit stream.
Figure 6. Serial LED Port Signaling
3.6.4.2
Activity Graph LEDs
The ACTGLED10 and ACTGLED100 LEDs are for activity bar graphing. The activity
information is integrated and updated over a period of 328.125ms, which has the effect of
smoothing out the activity. LEDs are provided for both the 10 Mbps and 100 Mbps segments.
Table 8. Serial LED Port Bit Stream
Bit
MII Ports-LED1, 2, 3
Misc.
ACTGLED10
ACTGLED100
7
MII Port 1 - LED1
Collision - 10M
1
ACTG8
ACTG8
6
MII Port 1 - LED2
Collision - 100M
1
ACTG7
ACTG7
5
MII Port 1 - LED3
Not Used
ACTG6
ACTG6
4
MII Port 2 - LED1
Activity - 10M
1
ACTG5
ACTG5
3
MII Port 2 - LED2
Activity - 100M
1
ACTG4
ACTG4
2
MII Port 2 - LED3
Global Fault
ACTG3
ACTG3
1
Not Used
Not Used
ACTG2
ACTG2
0
Not Used
RPS Fault
ACTG1
ACTG1
1. These LEDs are multiplexed with Configuration Inputs.
LEDDAT
MII PORTS-LED1,2,3
Misc. LEDs
ACTGLED10
ACTGLED100
Time
LEDLAT
LEDDAT
LEDLAT
b0
b1
b2
b3
b4
b5
b6
b7
LEDCLK
Qa
’
-Qh
’
(
‘
595)
Qa-Qh (
‘
164)
b0, b7-b1
b1, b0, b7-b2
b2-b0, b7-b3
b3-b0, b7-b4
b4-b0, b7-b5
b5-b0, b7-b6
b6-b0, b7
b7-b0
b7-b0
Qa-Qh
(
‘
595)
b7-b0
b7-b0
LEDDAT
LEDLAT
LEDCLK
122
μ
s
100 ns / 10 MHz
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