Reference Manual

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www.ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference.com 84
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Current Measurement Option
Measurement
options
The Current Measurement Option uses 0.025R ohm series resistors to measure the
current. The ConnectCore 9M 2443 Development board can measure:
 the +5V current used by the development board and module (through R80),
 the +3.3V current into the +3.3V regulator U23 (through R39),
 the +3.3V current into the module (through R70), and
 the VLIO current into the module (through R76).
Current
Measurement
Option (CMO)
+5V development
board and
module, R80
Current
Measurement
Option (CMO)
+3.3V
development
board and
module, R39
Current Measurement Option
(CMO) +3.3V, R70
VLIO, R76