User's Manual

76 Board Manual
Intel
®
IQ80321 I/O Processor Evaluation Platform
Software Reference
5.3 Ethernet
The 82544EI utilizes a 32/64-bit, 33/66 MHz direct-interface to the PCI bus. The controller interfaces
with the 80321 through on-chip command/status registers and using a shared memory area.
The intended usage of this chip is for high speed upload, download, and debugging. It is also used for
developing network storage applications. ARM-AFS, Redboot, VxWorks* and other standard OSs
come with support for this chip.
For more detail see Section 3.8.2 of this manual for a detailed description of the onboard Ethernet
controller. For programming information please refer to the Intel® 82544EI/82544GC Gigabit
Ethernet Controller Software Developer’s Manual.