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): 22/56頁
文件大小: 719K
代理商: 9863
LXT9883/9863
Advanced 10/100 Unmanaged Repeater
22
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
3.6.2
LED Event Stretching
Short lived LED status events are stretched so they may be observed by the human eye. Refer to the
LED1, 2, 3 Modes section for stretching specifics.
3.6.3
Serial LED Interface
The LXT98x3 provides a serial interface to drive additional LEDs via external 8-bit Serial-to-
Parallel converters. A maximum of 30 LEDs can be driven, using four S/P devices. Collision10/
100, Activity10/100 status indications are output on multiplexed configuration pins and are
duplicated on the Serial Port (see
"LED Pins Multiplexed with Configuration Inputs
on page 39.
).
3.6.4
Serial Shifting
Figure 5
shows the Serial LED shift loading.
Figure 5. Serial LED Shift Loading
74X164
74X164
74X164
74X164
2
ACT100
LXT98x3
MII
Misc
ACT10
3
1
4
8
5
7
6
MII
1, 2, 3
Misc
Activity
10M
Activity
100M
Shift Order
MII1 LED1
Collision 10M
ACTG8
ACTG8
8
MII1 LED2
Collision 100M
ACTG7
ACTG7
7
MII1 LED3
Not Used
ACTG6
ACTG6
6
MII2 LED1
Activity 10M
ACTG5
ACTG5
5
MII2 LED2
Activity 100M
ACTG4
ACTG4
4
MI2 LED3
Global Fault
ACTG3
ACTG3
3
Not Used
Not Used
ACTG2
ACTG2
2
Not Used
RPS Fault
ACTG1
ACTG1
1
30 LEDs
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