User`s guide

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 directly connected
to the IOS[2:0] pins of the LAN91C111 Ethernet processor. These
switches, by default, are set to the OFF positions. The pins are used in con-
junction 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)