Pin Description 5 of 88
April, 2002 Copyright © 1999-2002 by LSI Logic Corporation. All rights reserved.
25 RX_CLK O Receive Clock Output. This controller interface output provides a clock
to an external controller. Receive data on RXD, RX_DV, and RX_ER is
clocked out on falling edges of RX_CLK.
15 CRS O Carrier Sense Output. This controller interface output is asserted active
high when valid data is detected on the receive twisted pair inputs, and it
is clocked out on falling edges of RX_CLK.
16 RX_DV O Receive Data Valid Output. This controller interface output is asserted
active high when valid decoded data is present on the RXD outputs, and
it is clocked out on falling edges of RX_CLK.
18
19
20
21
RXD3
RXD2
RXD1
RXD0
OReceive Data Output. These controller interface outputs contain receive
nibble data from the TP input, and they are clocked out on falling edges
of RX_CLK.
17 RX_ER O Receive Error Output. This controller interface output is asserted active
high when a coding or other specified errors are detected on the receive
twisted pair inputs and it is clocked out on falling edges of RX_CLK.
14 COL O Collision Output. This controller interface output is asserted active high
when a collision between transmit and receive data is detected.
12 MDC I Management Interface (MI) Clock Input. This MI clock shifts serial data
into and out of MDIO on rising edges.
13 MDIO I/O Management Interface (MI) Data Input/Output. This bidirectional pin
contains serial MI data that is clocked in and out on rising edges of the
MDC clock.
8LA_LED/
(MDA3) I/O
O.D.
Pullup
Link + Activity LED/Management Interface Address Input. This pin
indicates the occurrence of Link or Activity. It can drive an LED from VDD.
0 = Link Detect
Blink = Link Detect and Activity
1 = No Link Detect
During powerup or reset, this pin is high impedance and its value is
latched in as the physical device address MDA3 for the MI serial port.
7C_LED/
(MDA2) I/O
O.D.
Pullup
Collision LED Output/Management Interface Address Input. This pin
indicates the occurrence of a Collision. It can drive an LED from VDD.
0 = Collision Detect
1 = No Collision
During powerup or reset, this pin is high impedance and the value on this
pin is latched in as the physical device address MDA2 for the MI serial
port.
Pin Description (Cont.)
Pin # Pin
Name I/O Description
