Personal Computer User Manual

6-12 Computer Group Literature Center Web Site
Programming the MVME51xx
6
5. PCI/ISA I/O Reset function controlled by the Clock Divisor register
in the PIB
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.
Note On the MVME5100, Watchdog Timer 2 is a source of reset
only if component R206 is installed on the board. Consult
your local Motorola Computer Group (MCG) sales
representative if this feature needs to be enabled.
Table 6-5 shows which devices are affected by the various types of resets.
For details on using resets, refer to the MVME5100-Series Single Board
Computer Programmer’s Reference Guide.
Device Affected
Processor
Hawk
ASIC
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 √√