Datasheet
Non-PCI Single-Chip Full Duplex Ethernet Controller with Magic Packet
Datasheet
SMSC LAN91C96 5v&3v Page 19 Revision 1.0 (10-24-08)
DATASHEET
PIN NO.
TQFP QFP PIN NAME TYPE DESCRIPTION
50 52 nIOWR/
R/nW
IS with
pullup
**
LOCAL BUS, PCMCIA - Input. Active low write strobe
used to access the LAN91C96 IO space.
68000 – Read/nWrite strobe to read from or write to
the chip.
51 53 nMEMR/
nOE
IS with
pullup
**
LOCAL BUS - Active low signal used by the host
processor to read from the external ROM.
PCMCIA - Output Enable input used to read from the
COR, CSR and attribute memory.
5 7 EESK O4
Output. 4usec clock used to shift data in and out of a
serial EEPROM.
4 6 EECS O4 Output. Serial EEPROM chip select.
2 4 EEDO/
SDOUT
O4
Output. Connected to the DI input of the serial
EEPROM.
3 5 EEDI
I with
pull-down
**
Input. Connected to the DO output of the serial
EEPROM.
96,97
98,99 IOS0-1
I with
pullup
Input. External switches can be connected to these
lines to select between predefined EEPROM
configurations. The values of these pins are readable.
99 1 IOS2
I with
pullup
**
Input. External switches can be connected to these
lines to select between predefined EEPROM
configurations. The values of these pins are readable.
70 72 nTXLED/
nTXEN
OD16 INTERNAL ENDEC - Transmit LED output.
O162
EXTERNAL ENDEC - Active low Transmit Enable
output.
67 69 nBSELED/
RXD
OD16
INTERNAL ENDEC - Board Select LED activated by
accesses to I/O space (nIORD or nIOWR active with
AEN low and valid address decode for LOCAL BUS,
and with nREG low and COR0 high for PCMCIA). The
pulse is stretched beyond the access duration to make
the LED visible.
I with
pullup
EXTERNAL ENDEC - NRZ receive data input.
69 71 nRXLED/
RXCLK
OD16 INTERNAL ENDEC - Receive LED output.
I with
pullup
EXTERNAL ENDEC - Receive clock input.
68 70 nLNKLED/
TXD
OD16 INTERNAL ENDEC - Link LED output.
O162 EXTERNAL ENDEC - Transmit Data output.
1 3 ENEEP
I with
pullup
**
Input. This active high input enables the EEPROM to
be read or written by the LAN91C96. Internally pulled
up. Must be connected to ground if no serial EEPROM
is used.