Eurotech Appliances zeus pxa270 Manuel D’Utilisation

 

© 2007 Eurotech Ltd    Issue D 

The ZEUS SBC provides two 10/100-BaseTX interfaces with MAC and complies with 

both the IEEE802.3u 10/100-BaseTX and the IEEE 802.3x full-duplex flow control 

specifications.  

Two single 10/100-BaseTX Ethernet controllers, Davicom DM9000A, are used to 

implement Ethernet interfaces on ZEUS. DM9000A device provides an embedded PHY 

and MAC and connects to 10/100-BaseTX magnetics. DM9000A also supports AUTO-

MDIX feature. Configuration data and MAC information are stored in an external serial 

EEPROM (93LC46). 

The DM9000A devices are connected to the PXA270 data bus (16-bit), and are 

memory mapped. Connection to the ZEUS Ethernet ports is via dual RJ45 connector, 

J6, with speed and link/activity status LEDs. For pin assignment and connector details, 

, page 

.  

The link/activity LED (yellow) is illuminated when a 10/100-BaseTX link is made, and 

when there is Tx/Rx activity. The speed LED (green) is illuminated when 100MB/s 

speed is selected.