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