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AC104X-DS00-R Datasheet(PDF) 22 Page - Broadcom Corporation.

Part # AC104X-DS00-R
Description  2.5V 4-Port 10/100-TX Ethernet Transceiver
PDF  50 Pages
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Manufacturer  BOARDCOM [Broadcom Corporation.]
Direct Link  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

AC104X-DS00-R Datasheet(HTML) 22 Page - Broadcom Corporation.

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■ AC104X
Preliminary Data Sheet
12/11/01
B roa dcom Co rpo rat ion
Page 14 Section 2: Pin Description
Document
AC104X-DS00-405-R
Polarity of LEDs is determined by polarity of mode pins.
Table 7:
LED Pins
Pin Name
Pin #
Type
Description
LEDDPX[A]
LEDDPX[B]
LEDDPX[C]
LEDDPX[D]
91
88
41
38
O
O
O
O
Port[n] Duplex LED. Active state indicates Full-Duplex. In half-duplex, this pin is
designed to blink to indicate collision.
LEDACT_LNK[A]
LEDACT_LNK[B]
LEDACT_LNK[C]
LEDACT_LNK[D]
92
89
42
39
O
O
O
O
Port[n] Activity/Link LED. Active state indicates a valid link. When there is receive
or transmit activity, LED toggles between high and low for 250 ms interval.
LEDSPD[A]
LEDSPD[B]
LEDSPD[C]
LEDSPD[D]
93
90
43
40
O
O
O
O
Port[n] Speed LED. Active state indicates 100BASE-TX mode.
Table 8:
Miscellaneous Pins
Pin Name
Pin #
Type
Description
RSTN
95
I, U
Reset. An active low input forces a known initialization state. The reset pulse dura-
tion must be > 100 us. Setting MII Reg. 0.15 asserts software reset, which has the
same functionality as the hardware reset.
Reserved
32
33
34
35
36
37
AO
Should be left un-connected.
IBREF
97
A
Reference Bias Resistor. Must be tied to analog ground through an external 10K
Ω
(1%) resistor.



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