130
Power Sense Options
TM8000 3DK Hardware Developer’s Kit
Application Manual
September 2003
© Tait Electronics Ltd
7.7
Radio Programming
Programmable I/O
shows the programming of the input lines in the Digital tab of the
Programmable I/O form of the programming application. For more
information refer to
“Digital Input Lines” on page 39
of the programming application.
Note
If AUX_GPI3 is configured for ‘auxiliary power sense’ or
IOP_GPIO7 is programmed for ‘internal options power sense’,
these input lines can no longer be used as general inputs. In order
to prevent any other action to be accidentally programmed for one
of these input lines, these input lines should be set to ‘Power Sense
(Ignition)’. This setting itself has no function.
Power-On Mode
With the ‘13.8V battery power sense’, ‘auxiliary power sense’ and ‘internal
options power sense’ configurations, the power-on mode of the radio must
be programmed to be either on or to return to its previous state from when
the power sense signal was removed. For information on programming the
power-on mode refer to the online help of the programming software.
Table 7.3
Programming the power sense options
Power sense option
Pin
Direction
Action
Active
13.8V battery power sense none
auxiliary power sense
AUX_GPI3
Input
High
internal power sense
IOP_GPIO7 Input
High
no power sense
none
emergency power sense
AUX_GPI2
Input
Enter Emergency Mode Low