Datasheet

Non-PCI Single-Chip Full Duplex Ethernet Controller with Magic Packet
Datasheet
Revision 1.0 (10-24-08) Page 30 SMSC LAN91C96 5v&3v
DATASHEET
Table 5.1 - LAN91C96 Address Space
SIGNALS
USED
LOCAL
BUS
PCMCIA 68000
ON-
CHIP
DEPTH WIDTH
PCMCIA
Attribute
Memory
nOE, nWE N Y N N
(extern
al
ROM)
Up to 32k
locations,
only even
bytes are
usable
8 bits on
even
addresses
PCMCIA
Configuration
Registers
nOE, nWE N Y N Y
64
locations,
only even
bytes are
usable
8 bits
Ethernet I/O
space
(Note 5.1)
nIORD/
nIOWR (68K:
xDS, R/nW)
Y Y Y Y 16 locations
8 or 16
bits
(68K: 16
bits only)
Note 5.1 This space also allows access to the PCMCIA Configuration Register through Bank 4.
Table 5.2 - Bus Transactions In LOCAL BUS Mode
A0 NSBHE D0-7 D8-15
8 BIT MODE
((nEN16=1)
(16BIT=0))
0 X Even byte -
1 X Odd byte -
16 BIT MODE
otherwise
0 0 Even byte Odd byte
0 1 Even byte -
1 0 - Odd byte
1 1 Invalid cycle