Motorola MVME2603-1121A, Инструкция по установке и эксплуатации

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Operating Instructions
2-13
2
6. The VMEbus
SYSRESET
∗ signal
7. VMEbus Reset sources from the Universe ASIC (PCI/VME
bus bridge controller): the System Software reset, Local
Software Reset, and VME CSR Reset functions
The following table shows which devices are affected by the
various types of resets. For details on using resets, refer to the
MVME2600 Series Single Board Computer ProgrammerÕs Reference
Guide
(part number V2600A/PG).
Endian Issues
The MVME2603/2604 supports both little-endian (e.g., Windows
NT) and big-endian (e.g., AIX) software. The PowerPC processor
and the VMEbus are inherently big-endian, while the PCI bus is
inherently little-endian. The following sections summarize how the
MVME2603/2604 handles software and hardware differences in
big- and little-endian operations. For further details on endian
considerations, refer to the
MVME2600 Series Single Board Computer
ProgrammerÕs Reference Guide (part number V2600A/PG).
Table 2-4. Classes of Reset and Effectiveness
Device Affected
Processor
Raven
ASIC
Falcon
Chip Set
PCI
Devices
ISA
Devices
VMEbus
(as system
controller
Reset Source
Power-On reset
√ √ √ √ √ √
Reset switch
√ √ √ √ √ √
Watchdog reset
√ √ √ √ √ √
VME SYSRESET
∗
signal
√ √ √ √ √ √
VME System SW reset
√ √ √ √ √ √
VME Local SW reset
√ √ √ √ √
VME CSR reset
√ √ √ √ √
Hot reset (Port 92)
√ √ √ √ √
PCI/ISA reset
√ √