Technical data

Bringing up the Board
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2
Bringing up the Board
The MVME172LX comes with 172Bug firmware installed. For the
firmware to operate properly with the board, you must follow the steps
below.
!
Caution
Inserting or removing boards with power applied may damage
board components.
1. Turn all equipment power OFF. Refer to MVME172LX
Configuration on page 1-4 and configure jumpers on headers as
necessary for your particular application.
a. The jumper block for header J21 contains eight bits, which all
affect 172Bug operation. They are read as a register (at location
$FFF4202D) on the MC2chip ASIC. (The MVME172 VME
Embedded Controller Programmer’s Reference Guide contains
additional information on the MC2chip.)
The bit values are read as a 0 when the corresponding jumper is
installed, or as a 1 when the jumper is removed.
The default configuration for J21 on the MVME172LX has
seven jumpers installed (no jumper between pins 9-10).
The 172Bug firmware reserves/defines the four lower order bits
(GPI3 to GPI0). Table 2-2 describes the bit assignments on J21.
b. Configure header J1 by installing/removing a jumper between
pins 1 and 2. A jumper installed/removed enables/disables the
system controller function on the MVME172LX.
2. Refer to the setup procedure for your particular chassis or system for
details concerning the installation of the MVME172LX.