Endian Issues; Table 2-5. Classes Of Reset And Effectiveness - Motorola MVME2700 Series Installation And Use Manual

6. The VMEbus
7. VMEbus Reset sources from the Universe II ASIC (PCI/VME bus
The following table shows which devices are affected by the various types
of resets. For details on using resets, refer to the MVME2600/2700 Series
Single Board Computer Programmer's Reference Guide.

Table 2-5. Classes of Reset and Effectiveness

Device Affected
Reset Source
Power-On reset
Reset switch
Watchdog reset
VME
SYSRESET∗signal
VME System SW
reset
VME Local SW
reset
Hot reset (Port 92)
PCI/ISA reset

Endian Issues

The PowerPC processor and the VMEbus are inherently big-endian, while
the PCI bus is inherently little-endian. The following sections summarize
how the MVME2700 handles software and hardware differences in big-
and little-endian operations. For further details on endian considerations,
refer to the MVME2600/2700 Series Single Board Computer
Programmer's Reference Guide.
http://www.motorola.com/computer/literature
SYSRESET
bridge controller): the System Software reset and Local Software
reset
Processor Raven
ASIC
√ √
√ √
√ √
√ √
√ √
√ √
√ √
Programming Considerations
∗
signal
Falcon PCI ISA
Chip Devices Devices
Set
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √ √
√ √
2
VMEbus
(as system
controller
√
√
√
√
√
2-11