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)： 24/56頁
文件大小： 719K
代理商： 9863
LXT9883/9863
—
Advanced 10/100 Unmanaged Repeater
24
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
There are two display modes for the activity bar graphs, Base-2 and Base-10. The modes are
selected via the LEDABGSEL pin. Refer to
Table 9
for details. Each step LED on the bar graph is
lit when the percent activity value associated with that step is met or exceeded.
3.6.5
Direct Drive LEDs
The LXT98x3 provides three direct drive LEDs for each port (PORT
n
_LED1:3), excluding the two
MII ports. Four additional segment LEDs indicate Collision 10/100 and Activity 10/100.) The per-
port LEDs are updated simultaneously to illustrate clear, non-overlapping status.
The following device pins are multifunctional (input = configuration; output = LED driver):
COL10_LED (185), ACT10_LED (183), ACT100_LED (184), and, PORT8_LED2 (175).
The drive level is determined by the particular input configuration function of the respective pin.
Collision and Activity indications for both 10M and 100M segments are available in both serial
and direct drive.
3.6.6
LED Modes
The four available LED modes are described in
Table 11 - Table 15
. Hardware pins provide global
LED mode control. Refer to
Table 5 on page 14
for pin assignments and signal description.
Table
10
defines terms used to describe LED operation.
Table 9. ACTGLED Display Modes
LED
LEDABGSEL = 0
(Base-10)
LEDABGSEL = 1
(Base-2)
ACTG 8
60+% Activity
80+% Activity
ACTG 7
50% Activity
64% Activity
ACTG 6
40% Activity
32% Activity
ACTG 5
30% Activity
16% Activity
ACTG 4
20% Activity
8% Activity
ACTG 3
10% Activity
4% Activity
ACTG 2
5% Activity
2% Activity
ACTG 1
1% Activity
1% Activity
Table 10. LED Terms
Term
Definition
Port_Enabled
True if port is enabled.
Link_OK
True if link is enabled and link is detected. Always true for MII port.
Port_Partitioned
True if port has been auto partitioned (10Mb mode).
True if port has been auto partitioned or isolated (100Mb mode).
Port_Is_TP
True if port is a twisted-pair port.
RPS_Present
True if redundant power supply is switched in.
RPS_Fault
True if redundant power supply has a fault.
Rcv_Activity
True if twisted-pair port on this device is receiving a packet.
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