Exceptions

The following table shows which devices are affected by the various reset sources:

Table 5-4. Reset Sources and Devices Affected

Devices Affected

Processor(s)

RavenASIC

FalconChipSet

PCIDevices

ISADevices

VMEbus(System Controller)

 

 

 

 

 

 

Sources of Reset

 

 

 

 

 

 

 

 

 

 

 

 

 

Power-On

 

 

 

 

 

 

 

Reset Switch

 

 

 

 

 

 

 

Watchdog (MK48T59/559)

 

 

 

 

 

 

 

VME System Reset (SYSRESET∗ Signal)

 

 

 

 

 

 

 

VME System Software Reset (MISC_CTL

Register)

 

 

 

 

 

 

 

 

 

 

 

 

 

VME Local Software Reset (MISC_CTL

 

Register)

 

 

 

 

 

 

 

 

 

 

 

 

 

Hot Reset (Port 92 Register)

 

 

 

 

 

 

 

 

PCI/ISA Reset (Clock Divisor Register)

 

 

 

 

 

 

 

 

 

 

 

Soft Reset

Software can assert the SRESET∗ pin of any processor by programming the Processor Init register of the RavenMPIC appropriately.

Universe Chip Problems after PCI Reset

Under certain conditions, there may be problems with the Universe chip after a PCI reset. Refer to Universe Chip Problems after PCI Reset in Chapter 4 for details.

5

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Motorola MVME2300 Series manual Soft Reset, Reset Sources and Devices Affected, Sources of Reset