CHAMP-AV8 (VPX6-462) HARDWARE USER’S MANUAL CURTISS-WRIGHT
A-58 PROPRIETARY 826448 VERSION 5 MARCH 2015
RTM Reset
Pushbutton (SW1)
Mounted on the RTM face plate, SW1 is a normally-open, momentary contact switch used to
reset the CHAMP-AV8. The other PWB-mounted switches (see Table A.39 on page A-57) are
toggle switches that will stay in the position set.
REAR TRANSITION MODULE (RTM) PWB HEADER CONNECTORS
As seen in Figure A.19 on page A-53, the RTM PWB provides a group of headers on the PWB,
numbered JB1 through JB8. These headers provide (for example) access to the Discrete I/O
(DIO), PMC I/O, XMC I/O. With the increased accessibility afforded by the RTM, these
interfaces become available for probing, wire-wrapping or attaching a cable for debug, as well
as connections to other parts of the system.
SW17 SOFT_JUMP0 The SOFT_JUMP0 and SOFT_JUMP1 switches on the
RTM (which correspond to jumpers JB2 and JB3, respec-
tively) are software readable, and can be used by software
programs to branch logic in any way desirable by the pro-
grammer. These settings have no effect unless they are
assigned a specific meaning or decision choice within a
program.
OFF JB2
SW18 SOFT_JUMP1 OFF JB3
See the Software User’s Manual, VPX6-460 BIOS, document number 826450, for additional
information describing the various boot modes and the operation of the SW0 and SW1
software jumpers. Jumper settings may be viewed using the BSP; refer to
“sysBoardInfoShow()” and “sysJumperStateGet()” in the Software User’s Manual,
CHAMP-AV8 VxWorks BSP & Driver Suite, document number 826452, or in the Software
User’s Manual, CHAMP-AV8 Linux BSP & Driver Suite, document number 826449.
The SW16 switch is intended for factory use only, and as such should be left in the Off
position, to avoid over-writing the contents of the PABS.
Referring to Table A.39, when an RTM switch has a corresponding CHAMP-AV8 on-board
jumper, either can affect the function. If either the switch is ON (closed) or the jumper is
INSTALLED, or both, the non-default setting is selected.
The NVMRO switch on the CHAMP-AV8's RTM has the opposite polarity when compared to
the VITA 46 Specification. In other words, according to the VITA 46 spec, when a NVMRO
jumper is installed (or the switch is closed), the non-volatile memories are write protected.
On the CHAMP-AV8, when SW12 is closed the non-volatile memories are writable.
Table A.39: RTM SW2–SW18 Functions (Continued)
RTM Switch Silkscreen Label ON OFF Default AV8 Jumper
Table A.40: RTM Header Functions
Header Number Description
J7 XMC Differential I/O
JB2 XMC Site PMC I/O
JB6 XMC Single-Ended I/O
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