Reset - Motorola MVME167P Installation And Use Manual

activate this function, you press the RESET and ABORT switches at the
same time. This feature can be helpful in the event that your
setup/operation parameters are corrupted or do not meet a sanity check.
For the ROM defaults, refer to the ENV command description in
4, Modifying the

Reset

Powering up the MVME167P initiates a system reset. You can also initiate
a reset by pressing and quickly releasing the RESET switch on the
MVME167P front panel, or you can reset the board in software.
For details on resetting the MVME167P board through software, refer to
the MVME1X7P Single Board Computers Programmer's Reference Guide,
listed in
Both "cold" and "warm" reset modes are available. By default, 167Bug is
in "cold" mode. During cold resets, a total system initialization takes place,
as if the MVME167P had just been powered up. All static variables
(including disk device and controller parameters) are restored to their
default states. The breakpoint table and offset registers are cleared. The
target registers are invalidated. Input and output character queues are
cleared. Onboard devices (timer, serial ports, etc.) are reset, and the two
serial ports are reconfigured to their default state.
During warm resets, the 167Bug variables and tables are preserved, as well
as the target state registers and breakpoints.
Note that when the MVME167P comes up in a cold reset, 167Bug runs in
Board mode. Using the Environment (ENV) or MENU commands can
make 167Bug run in System mode. Refer to
for specifics.
You will need to reset your system if the processor ever halts, or if the
167Bug environment is ever lost (vector table is destroyed, stack
corrupted, etc.).
http://www.motorola.com/computer/literature
Environment.
Appendix E, Related Documentation.
Chapter
Chapter 3, 167Bug Firmware
Reset
2
2-11