User's Manual

Blackfin USB-LAN EZ-Extender Manual 2-9
USB-LAN EZ-Extender Hardware Reference
IOS[2:0] Switch (SW2.2, SW2.3, SW2.4)
The IOS[2:0] bits on the USB-LAN EZ-Extender are connected directly
to the IOS[2:0] pins of the LAN91C111 Ethernet processor. By default,
the switches are OFF. The IOS[2:0] pins are used in conjunction with the
“Serial ROM Enable Switch (SW2.1)” to select between predefined
EEPROM configurations. For more information about the switches, refer
to the SMSC LAN91C111 data sheet.
Table 2-8. SW2.1 Settings
Functionality SW2.1 Setting
Serial ROM disabled ON
Serial ROM enabled OFF (default)