Hardware Overview

The SUNW,eri device provides a 100BASE-TX network interface using the Ethernet function of the RIO ASIC. The driver automatically sets the link speed to 10 or 100 Mbps and conforms to the 100BASE-T IEEE 802.3u Ethernet Standard. The RIO ASIC provides the PCI interface and Media Access Control (MAC) functions. The internal transceiver, which connects to an RJ-45 connector, provides the physical layer functions.

The RIO ASIC is a chip set composed of an I/O chip and a single chip Ethernet transceiver; the eri device driver uses the Ethernet function of this ASIC.