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Developer Board and Interfaces Description
16
98-08901C67-O
3.4.1.4
Power Source Selection
The Developer Board AC adapter and battery power inputs include a selection jumper (P202) that diverts either the regulated
AC adapter power or the battery power to the board.
Jumpers are provided for disconnecting the power from the Developer Board and for disconnecting the power from the g20.
You may wish to remove the Developer Board power jumper and shut off the power to the board in order to diagnose a problem
that may be caused by the board. The g20 will continue to receive power.
You may also want to remove the g20 power jumper and then connect an amperometer to the jumper’s two pins to measure the
current through the g20.
Table 6. Power Source Jumper (P202)
P202 Jumper
Position
Selected Mode
Power Source
1
2
3
•
•
Adapter
AC Adapter
•
•
Battery
LiIon Battery
Adapter and battery disconnected
DC power only
Table 7. Developer Board Power Jumper (P201)
P201
Jumper
Position
Selected Mode
1
2
•
•
Developer Board connected to
power source
Developer Board disconnected
from power source
Table 8. g20 Power Jumper (P201)
P200
Jumper
Position
Selected Mode
1
2
•
•
g20 connected to power
source
g20 disconnected from power
source
Содержание F3030A
Страница 1: ...D r a f t Developer s Guide Motorola g20 Developer s Kit 98 08901C67 O ...
Страница 2: ...ii 98 08901C67 O REVISION HISTORY Revision Date Purpose ...
Страница 10: ...Preface 4 98 08901C67 O ...
Страница 42: ...Developer Board and Interfaces Description 36 98 08901C67 O ...
Страница 44: ...Mechanical Description 38 98 08901C67 O ...
Страница 48: ...Service Support 42 98 08901C67 O ...
Страница 50: ...Schematics Placement and Parts List 44 98 08901C67 O Figure 23 Developer Board Top Level Design ...
Страница 51: ...98 08901C67 O 45 Schematics Placement and Parts List Figure 24 Diagnostics ...
Страница 52: ...Schematics Placement and Parts List 46 98 08901C67 O Figure 25 Power ...
Страница 53: ...98 08901C67 O 47 Schematics Placement and Parts List Figure 26 Debug Interface ...
Страница 54: ...Schematics Placement and Parts List 48 98 08901C67 O Figure 27 Keypad and Display ...
Страница 55: ...98 08901C67 O 49 Schematics Placement and Parts List Figure 28 Audio Interface ...
Страница 56: ...Schematics Placement and Parts List 50 98 08901C67 O Figure 29 LEDs ...
Страница 57: ...98 08901C67 O 51 Schematics Placement and Parts List Figure 30 Battery Charger ...
Страница 58: ...Schematics Placement and Parts List 52 98 08901C67 O Figure 31 Serial Interface ...
Страница 68: ...Schematics Placement and Parts List 62 98 08901C67 O ...
Страница 72: ...Index 66 98 08901C64 O ...