Preparing the Hardware
3-9
3
Table 3-2. J1 Bit Descriptions
Bit
J1 Pins
Description
Bit #0 (GPI0)
1-2
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.). This bit will be high when jumper is removed.
Bit #1 (GPI1)
3-4
When this bit is a one (high), it instructs the debugger to use
the default setup/operation parameters in ROM 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 ROM defaults. This bit will be
high when jumper is removed.
Bit #2 (GPI2)
5-6
Reserved for future use.
Bit #3 (GPI3)
7-8
Reserved for future use.
Bit #4 (GPI4)
9-10
Open to your application.
Bit #5 (GPI5)
11-12
Open to your application.
Bit #6 (GPI6)
13-14
Open to your application.
Bit #7 (GPI7)
15-16
Open to your application.
Table 3-3. Factory Settings for J1 General Purpose Readable Jumpers
Header
Number
Header
Description
ConÞguration
Jumpers
J1
General
purpose
software
readable
jumpers
GPI0 - GPI3:
Reserved
GPI4 - GPI7:
User-deÞnable
(Factory
conÞguration)
15
GPI0
GPI1
GPI2
GPI6
GPI3
GPI4
GPI5
1
2
16
GPI7
7
8
Summary of Contents for MVME167 Series
Page 1: ...MVME167 Single Board Computer Installation Guide MVME167IG D4 ...
Page 6: ......
Page 106: ...4 28 Debugger General Information 4 ...
Page 132: ...5 26 Using the 167Bug Debugger 5 ...
Page 146: ...A 14 Configure and Environment Commands A ...
Page 152: ...B 6 Disk Tape Controller Data B ...
Page 160: ...D 6 Troubleshooting the MVME167 Solving Startup Problems D ...
Page 168: ...E 8 EIA 232 D Interconnections E ...