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Hardware Preparation and Installation
Setup Instructions
2
!
Caution
2-10
Even though the MVME177Bug EPROMs are installed on the
MVME177 module in the factory, follow this setup procedure for
177Bug to operate properly with the MVME177.
Inserting or removing modules while power is applied
could damage module components.
1. Turn all equipment power OFF.
2. Refer to Table 2-2 in the Hardware Preparation section in this
chapter and install/remove jumpers on headers as required
for your particular application.
a. Jumpers on header J1 affect 177Bug operation as listed
below. The default condition is with seven jumpers
installed between the following pairs of pins:
GPI0
GPI1
GPI2
GPI3
GPI4
GPI5
GPI6
GPI7
The MVME177 may be configured with these readable
jumpers. These jumpers can be read as a register (at
$FFF40088) in the VMEchip2 LCSR. The bit values are read
as a one when the jumper is off, and as a zero when the
jumper is on. This jumper block (header J1) contains eight
bits. Refer to the Single Board Computers Programmer's
Reference Guide.
The MVME177Bug reserves/defines the four lower order
bits (GPI3 to GPI0). The following table shows the bits
reserved/defined by the debugger:
1
2
7
8
15
16
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