Intel 82551 Switch User Manual


 
Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual 3
Introduction
Dword alignment: Dword alignment implies that the physical addresses may only be aligned
on 4-byte boundaries. In other words, the last nibble of the address may only end in 0h, 4h, 8h,
or Ch.
Example: 0FECBD9A8h
Paragraph alignment: Paragraph alignment implies that the physical addresses may only be
aligned on 16-byte boundaries. In other words, the last nibble must be a 0.
Example: 02345ADC0h