LAN91C95 Ver la hoja de datos (PDF) - SMSC -> Microchip
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Lista de partido
LAN91C95 Datasheet PDF : 144 Pages
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PIN NO.
2
3
125
126
121
122
4
6
5
7
114
NAME
AUI Transmit
AUI Collision
TPE Receive
TPE
Transmit
TPE
Transmit
Delayed
Powerdown
DESCRIPTION OF PIN FUNCTIONS
SYMBOL
TYPE
DESCRIPTION
TXP/nCOLL
TXN/nCRS
Diff.
Output
Internal ENDEC - (nXENDEC pin open). In
this mode TXP and TXN are the AUI transmit
differential outputs. They must be externally
pulled up using 150 ohm resistors.
I
External ENDEC - (nXENDEC pin tied low). In
this mode the pins are inputs used for collision
and carrier sense functions.
COLP
COLN
Diff. Input
AUI collision differential inputs. A collision is
indicated by a 10 MHz signal at this input pair.
TPERXP
TPERXN
Diff. Input 10BASE-T receive differential inputs.
TPETXP
TPETXN
Diff. Output Internal ENDEC - 10BASE-T transmit
differential outputs.
TPETXDP
TPETXDN
PWRDWN
Diff. Output
I with pullup
10BASE-T delayed transmit differential
outputs. Used in combination with TPETXP
and TPETXN to generate the 10BASE-T
transmit pre-distortion.
Internal ENDEC - Powerdown input. It keeps
the LAN91C95 in powerdown mode when high
(open). Must be low for normal operation.
Refer to the Powerdown Matrix following for
further details.
Transmit
Clock
99
nWakeup
Enable
100 Wakeup
TXCLK
nWAKEUP-
EN
WAKEUP
I with pullup
O4
15
External ENDEC - Transmit clock input from
external ENDEC
Input. When pulled down, the device will
enable Magic Packet (MP) logic and put the
Ethernet function in powerdown mode. The pin
assertion will override the state of
WAKEUP_EN and PWRDN bits in CTR,
Pwrdwn bit in ECSR, and Enable Function bit
ECOR. When deasserted, the WAKEUP_EN
and PWRDN bits will be changed to (0),
Pwrdwn to (0), and Enable Function to (1).
Output. Asserted high if nWAKEUP_EN is
asserted and a valid Magic Packet (MP)
pattern is detected. The pin remains asserted
until nWAKEUP_EN is deasserted.
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