Analog Devices 82-000845-01 Uživatelský manuál stáhnout pdf (Strana 31)

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)

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 47 48

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Analog Devices 82-000845-01 Uživatelský manuál Strana 31