user manual

Debugger General Information
3-4 MVME162 Embedded Controller Installation Guide
3
Note that when the MVME162 comes up in a cold reset, 162Bug runs in Board
Mode. Using the Environment (ENV) or MENU commands can make 162Bug
run in System Mode. Refer to Appendix A.
2. Configure header J1 by installing/removing a jumper between pins 1 and
2. A jumper installed/removed enables/disables the system controller
function of the MVME162.
3. You may configure Port B of the Z85230 serial communications controller
via a serial interface module (SIM) which is installed at connector J10 on
the MVME162 board. Four serial interface modules are available:
– EIA-232-D DTE (SIM05)
– EIA-232-D DCE (SIM06)
– EIA-530 DTE (SIM07)
– EIA-530 DCE (SIM08)
For information on removing and/or installing a SIM, refer Chapter 2.
Bit J22 Pins Description
Bit #0 (GPI0) 15-16 When this bit is a one (high), it instructs the debugger
to use local Static RAM for its work page (i.e.,
variables, stack, vector tables, etc.).
Bit #1 (GPI1) 13-14 When this bit is a one (high), it instructs the debugger
to use the default setup/operation parameters in Flash
or PROM versus the user setup/operation parameters
in NVRAM. This is the same as depressing the RESET
and ABORT switches at the same time. This feature
can be used in the event the user setup is corrupted or
does not meet a sanity check. Refer to the
ENV
command (Appendix A) for the Flash/PROM defaults.
Bit #2 (GPI2) 11-12 Reserved for future use.
Bit #3 (GPI3) 9-10 When this bit is a zero (low), it informs the debugger
that it is executing out of the Flash memories. When
this bit is a one (high), it informs the debugger that it is
executing out of the PROM.
Bit #4 (GPI4) 7-8 Open to your application.
Bit #5 (GPI5) 5-6 Open to your application.
Bit #6 (GPI6) 3-4 Open to your application.
Bit #7 (GPI7) 1-2 Open to your application.