Analog Devices 82-000845-01 manual IOS20 Switch SW2.2, SW2.3, SW2.4

USB-LAN EZ-Extender Hardware Reference

Table 2-8. SW2.1 Settings

Functionality	SW2.1 Setting
Serial ROM disabled	ON
Serial ROM enabled	OFF (default)

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.

Blackfin USB-LAN EZ-Extender Manual 2-9