DESCRIPTION OF PIN FUNCTIONSOF PIN FUNCTIONSPIN FUNCTIONS
PQFP/TQFP
PIN NO.
NAME
Ground
14,32,
46,50,
66,75,
82,94,
111,116,
120,122,
128,134,
138,169,
174,180,
185,200
203
2
Analog
Ground
Transmit
Enable
Transmit
Data
Carrier
Sense
Collision
Detection
Receive
Data
Transmit
Clock
Receive
Clock
Loopback
SYMBOL
GND
BUFFER
TYPE
Ground pins.
DESCRIPTION
AGND
TXEN
O4
Analog ground pin.
Output. Used for 10 Mbps ENDEC. This pin
stays low when MIISEL is high.
NRZ transmit data output for 10 Mbps
ENDEC interface.
Input. Carrier sense from 10 Mbps ENDEC
interface. This pin is ignored when MIISEL
is high.
Input. Collision detection indication from 10
Mbps ENDEC interface. This pin is ignored
when MIISEL is high.
NRZ receive data input from 10 Mbps
ENDEC interface. This pin is ignored when
MIISEL is high.
Input. 10 MHz transmit clock used in 10
Mbps operation. This pin is ignored when
MIISEL is high.
Input. 10Mhz receive clock recovered by the
10 Mbps ENDEC. This pin is ignored when
MIISEL is high.
Output. Active when LOOP bit is set (TCR
bit 1). Independent of port selection
(MIISEL=X).
201
208
TXD
CRS
O4
ID
207
COL
ID
206
RXD
IP
197
TXC
IP
199
RXC
IP
202
LBK
O4
8
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