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Endian Issues
The MVME2300 series supports both little-endian and big-endian
software. Because the PowerPC processor is inherently big-endian, PCI is
inherently little-endian, and the VMEbus is big-endian, there is potential
for confusion. The figures below illustrate how the MVME2300 series
boards handle the endian issue in big-endian and little-endian modes.
Big-Endian PROGRAM
Raven
N-way Byte Swap
Universe
N-way Byte Swap
http://www.motorola.com/computer/literature
60X System Bus
PCI Local Bus
VMEbus
Figure 5-3. Big-Endian Mode
Endian Issues
Falcons
DRAM
Big-Endian
Little-Endian
Little-Endian
Big-Endian
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