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)： 29/118頁
文件大小： 1648K
代理商： 9880
Advanced 10/100 Repeater with Integrated Management
—
LXT9860/9880
Datasheet
Document #: 248987
Revision#: 003
Rev Date: 08/07/01
29
1, 7, 15,
27, 46, 62,
75, 86, 90,
94, 98,
103, 109,
116, 117,
123, 130,
131, 138,
144, 145,
152, 158,
164, 168,
172, 179,
181, 189,
199
GND
-
Ground.
Connect each of these pins to system ground plane.
102
RBIAS
A
RBIAS.
Used to provide bias current for internal circuitry. The 100
μ
A bias current is provided through an external 22.1 k
,
1%
resistor to GND.
79
RPS_PRES
I
PD
Redundant Power Supply Present.
Active High input indicates
presence of redundant power supply. Tie Low if not used.
78
RPS_FAULT
I
PU
Redundant Power Supply Fault.
Active Low input indicates
redundant power supply fault. The state of this input is reflected in
the RPS_LED output (refer to LED section). Tie High if not used.
Table 9. Power Supply and Indication Signal Descriptions (Continued)
Pin
Symbol
Type
1, 2
Description
1. I = Input, O = Output, I/O = Input/Output, D = Digital, A = Analog, AI = Analog Input,
A I/O = Analog Input/Output, OD = Open Drain, OS = Open Source, PD = Pull Down, PU = Pull Up.
NC = No Clamp. Pad does not clamp input in the absence of power.
2. Pins are 5V tolerant, unless indicated.
Table 10. PROM Interface Signal Descriptions
Pin
Symbol
Type
1, 2
Description
68
PROM_CLK
I/O
Tri-State
PD
PROM Clock.
1 MHz clock for reading PROM data (Chip ID =
00).
If a PROM is not used, this pin must be tied Low.
All devices should be connected together. PROM_CLK is driven
only by the device with ChipID = 00. (Sensed by other devices.)
69
PROM_CS
O
Tri-State
PROM Chip Select.
Selects PROM. Active High signal driven
only when Chip ID = 00.
70
PROM_DTOUT
O
Tri-State
PROM Data Output.
Selects read instruction for PROM. Active
High signal driven only when ChipID = 00.
All devices should be connected together. PROM_CLK is driven
only by the device with ChipID = 00. (Sensed by other devices.)
71
PROM_DTIN
I
PD
PROM Data Input.
If a PROM is not used, this input can be tied
Low or High.
1. I = Input, O = Output, I/O = Input/Output, D = Digital, A = Analog, AI = Analog Input,
A I/O = Analog Input/Output, OD = Open Drain, OS = Open Source, PD = Pull Down, PU = Pull Up.
NC = No Clamp. Pad does not clamp input in the absence of power.
2. Pins are 5V tolerant, unless indicated.
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