2-8
Computer Group Literature Center Web Site
Operating Instructions
2
shows which devices are affected by the various types of resets.
For details on using resets, refer to the MCP750 Single Board Computer
Programmer's Reference Guide, listed in
.
Endian Issues
The MCP750HA supports both little-endian and big-endian software. The
PowerPC is inherently big-endian, while the PCI bus is inherently little-
endian. The following sections summarize how the MCP750HA handles
software and hardware differences in big- and little-endian operations. For
further details on endian considerations, refer to the MCP750 Single Board
Computer Programmer’s Reference Guide, listed in
.
Table 2-3. Classes of Reset and Effectiveness
Device
Affected
Reset Source
Processor
Raven
ASIC
Falcon
Chip Set
PCI
Devices
ISA
Devices
Compact
PCI
Busses
Hot
Swap
Bridge
Power-
On/under-
voltage
√
√
√
√
√
√
√
Front Panel
Reset Switch
√
√
√
√
√
√
J21 Reset
Header
√
√
√
√
√
√
Watchdog
Timer Reset
√
√
√
√
√
√
S/W Hard
Reset (PBC
Port 92
Register)
√
√
√
√
√
√
CompactPCI
Reset (21154
BCR)
√
External
Reset (J5)
√
√
√
√
√
√
Summary of Contents for MCP750HA Series
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