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AC208-DS00-R 数据表(PDF) 25 Page - Broadcom Corporation.

部件名 AC208-DS00-R
功能描述  2.5V 10/100-TX 8-Port Repeater/71 Uplink Port with Integrated Bridge
PDF  58 Pages
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制造商  BOARDCOM [Broadcom Corporation.]
网页  http://www.broadcom.com
标志 BOARDCOM - Broadcom Corporation.

AC208-DS00-R 数据表(HTML) 25 Page - Broadcom Corporation.

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Preliminary Data Sheet
AC208
07/08/02
B roa dcom
Document
AC208-DS04-405-R
Pin Descriptions
Page 17
Table 10: Configuration and Setup
Pin Name
Pin #
Type
Description
Mode[3]
Mode[2] (LED_D[4])
Mode[1] (LED_D[1])
Mode[0] (LED_D[0])
37
122
119
118
I,D
Mode[1:0]
Domain A
Domain B
00
100M Rptr
10M Rptr (Master)
01
100M Rptr
10M Rptr (Slave, Bridge disable)
10
100M
Port 7
11
100M Rptr
10M Rptr (Slave, Bridge, enable
and 10M disable)
Mode[3:2]
MII
Reserved
TP125
36
I
1:select 1:1.25 xformer
ChipID[0] (LED_D[3])
ChipID[1] (LED_D[2])
120
121
I,D
To assign chip ID for four devices in a single box. One device
in the box must be assigned with ChipID = 0.
RBP
112
I
Reference bias resistor. Connected to analog ground through
a 10K (1%) resistor.
Table 11: Clock Reset
Pin Name
Pin #
Type
Description
1 RESET*
1 47
1 I,U
1 Reset to initial and defaulted state. Pulse must be greater than 10 ns.
1 CLK
1 48
1 I
1 25-MHz system clock reference input. This pin shall be connected to an
external 25-MHz clock source. Multiple devices should be synchronous to
the same external clock source.
Table 12: Power and Ground
Pin Name
Pin #
Type
Description
DVCC
115, 126, 10, 23, 39, 46
P
2.5V power for digital circuit, total of 9 pins.
DGND
114, 116, 117, 5, 15, 32,
45, 49
G
Ground for digital circuit, total 10 pins.
AVCC
108, 109, 110, 57, 58, 59
P
2.5V power for analog circuit, total 16 pins.
AGND
105, 62, 65, 66, 69, 74,
77, 78, 81, 86, 89, 90, 93,
98, 101, 102
G
Ground for analog circuit, total 16 pins
GAVDD
113
P
2.5V power supply for common analog circuit
GAGND
111, 56
G
Ground for common analog circuit
Table 13: No Connects
Pin Name
Pin #
Type
Description
N/C
17, 28, 29, 30, 31, 33, 34,
35, 38, 40, 41, 42, 43, 44
N/C
No Connects



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