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4.2.2.4 Other Functions

Signal Name Pin No I/O Comments

/RESET 40 I Active high. The RESET line has a fixed 10kOhm pull down

resistor to ground, followed by a 10kOhm resistor feeding

the base of a transistor.

3VOUT 31 O Used to monitor the state of the regulated supply within the

module. THIS PIN MUST NOT BE USED TO POWER AN

EXTERNAL CIRCUIT.

4.2.2.5 Signal Levels for Bluetooth Coexistence and Wakeup Pins

Signal Type Signal level

Input V

max=1.0V

min=1.5V

max=3.5V

Output V

max=0.4V

min=2.4V

4.2.2.6 Bluetooth Coexistence

Signal Name Pin No I/O Comments

WLAN_ACTIVE 4 O

BT_PRIORITY 3 I If unused, this pin should be pulled low.

BT_STATE 1 I If unused, this pin should be pulled low.

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Siemens MC55 Spezifikationen Seite 9