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參數(shù)資料
| 型號： | 9860 |
| 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)： | 71/118頁 |
| 文件大?。?/td> | 1648K |
| 代理商： | 9860 |
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Advanced 10/100 Repeater with Integrated Management
—
LXT9860/9880
Datasheet
Document #: 248987
Revision#: 003
Rev Date: 08/07/01
71
Miscellaneous LEDs (Repeat of Collision10/100, Manager Present, Repeat of Activity10/100,
Global Fault, RPS Fault)
ACTGLED10
ACTGLED100
This allows the user to leave off devices in the serial-to-parallel chain if the LEDs associated with
that condition aren
’
t desired. Refer to
Figure 7 on page 41
which illustrates the LED serial interface
port signalling and
Table 12 on page 41
which documents the Serial LED Stream.
If the 8 bit serial bus Configuration Mode is selected (See
“
Serial Configuration Interface
”
on
page 60
.), unscheduled (less than 122
μ
s apart) LED Serial Port cycles occur each time the
Repeater
Serial Configuration register is read. If the 74x164 buffer is used, flicker is minimized by
design so that it is not noticeable to the eye. The LED outputs may change momentarily.
4.4
Inter-Repeater Backplane Compatibility
The Inter-repeater Backplane (IRB) comprises two parts:
Local
—
the backplane between cascaded devices on the same board.
Stack
—
the backplane between multiple boards.
Each of these backplanes consists of both analog and digital signals.
Figure 28. Serial LED Circuit
SER
RCLK
SRCLK
Qa
Qb
.
.
.
Qh
Qh
‘
LED cct.
LED cct.
.
.
LED cct.
R
V
LED
LED cct.
V
LED
side
V
LED
= 3.3 to 5 Volts +/- 5%
74X595
.
LED cct.
LED cct.
.
.
LED cct.
Up to 2 more
‘
595s/8xLEDs
LEDDAT
LEDLAT
LEDCLK
.
Up to 2 more
‘
164s/8xLEDs
LED cct.
LED cct.
.
.
LED cct.
V
LED
LED cct.
LED cct.
.
.
LED cct.
LEDDAT
LEDCLK
Qa
Qb
.
.
.
Qh
A
B
CLK
74X164
Qa
Qb
.
.
.
Qh
A
B
CLK
74X164
A
A
A
A
SER
RCLK
SRCLK
Qa
Qb
.
.
.
Qh
Qh
‘
74X595
LXT98x0
LXT98x0
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