User Guide

NHM-8NX
System Module & UI PAMS Technical Documentation
Page 64 ãNokia Corporation Issue 1 05/02
List of unused UEM pins
Pin name Input/
output
Note/description
Required SW
initialization.
MIC3P In 3rd mic input not used. MUX should never be closed
by SW
Off
MIC3N In
KEYB1 In A/D-converters not used, MUX should never be closed
by SW
KEYB2 In
LS In
VCXOTEMP In
PWMO Out 3-wire charger not used
PWM1C Out
CHDISX In Disabling of UEM charger switch. Internal Pull-up,
must be left floating when not used
BUZZO Out Open drain outputs, not used Off
CALLED1 Out Off
CALLED2 Out Off
SIMCARDDET In SIM-switch for card-removal detection, not used (BSI
monitoring used in stead)
IRLEDC Out No IrDa Off
IRRXN In
TXPWRDET In Not used with Mjoelner
AFCOUT Out Not used with Mjoelner
VREFRF02 Out Unused RF reference
VR1B Out Unused RF regulator Off
VR4 Out Unused RF regulator Off
VFLASH2 Out Spare BB supply Off
IPA1 Out Unused current sources Off
IPA2 Out Off
UEMRSTX Out For use with switchmode converter
SMPSCLK Out