LAN91C111 Datasheet, PDF (88/125 Pages) SMSC Corporation – 10/100 Non-PCI Ethernet Single Chip MAC + PHY

LAN91C111
Note:
If no EEPROM is connected to the LAN91C111, for example for some embedded applications, the ENEEP
pin should be grounded and no accesses to the EEPROM will be attempted. Configuration, Base, and Indi-
vidual Address assume their default values upon hardware reset and the CPU is responsible for program-
ming them for their final value.
FIGURE 11-1:
64 X 16 SERIAL EEPROM MAP
IOS2-0
000
WORD ADDRESS
0h
1h
16 BITS
CONFIGURATION REG.
BASE REG.
001
4h
CONFIGURATION REG.
5h
BASE REG.
010
8h
CONFIGURATION REG.
9h
BASE REG.
011
Ch
CONFIGURATION REG.
Dh
BASE REG.
100
10h
CONFIGURATION REG.
11h
BASE REG.
101
14h
CONFIGURATION REG.
15h
BASE REG.
110
18h
CONFIGURATION REG.
19h
BASE REG.
XXX
20h
21h
22h
IA0-1
IA2-3
IA4-5
 2011-2016 Microchip Technology Inc.
DS00002276A-page 89