User Guide

RH-21 Company Confidential
System Module Nokia Customer Care
Page 26  2004 Nokia Corporation. Issue 2 07/2004
VCHARGIN Charg
er
UEM In Vchr < 16 V
<1.2 V
DC Vch from Charger Connec-
tor, max. 20 V
GND GND GND from/to Charger con-
nector
PWRONX * Power On Signal, see also the UI/keyboard
PWRONX UI UEM In Dig 0/Vbatt Power button
GND GND GND from/to Charger con-
nector
RFAUXCONV(2:0) RF-BB auxiliary analog signals
0
1 TXPWRDET TXPow
. Det.
Mod.
UEM In Ana 0.1-2.7V Tx PWR Detector Output to
UEM
2 AFC UEM VCTCX
O
Out Ana 0.1-2.4V 11bits AFC control voltage to
VCTCXO, default about 1.3V
IRIF, no bus no rips UEM 2.7V signals to IR Module
IRLEDC UEM IR Out Dig 0/2.7V 9k6 -
1Mbit/s
IR Tx signal to IR Module
IRRXN IR UEM In Dig 0/2.7V 9k6 -
1Mbit/s
IR Receiver signal from IR
Module
UIDRV lines, no bus UEM drivers: sinking outputs to Buzzer, Vibra, KLED, DLED
BUZZO UEM Buzze
r
Out Dig 350mA max.
/ Vbatt
1-5 kHz,
PWM vol
Open collector sink switch
output for Buzzer. Fre-
quency controlled pitch,
PWM for volume.
VIBRA UEM Vibra Out Dig 135mA max
/ Vbatt
64/128/
256/512
Hz
Open collector sink switch/
Frequency/ pwm output for
buzzer
DLIGHT UEM UI Out Dig 100mA /
Vbatt
Switch/
100Hz
pwm
Open drain switch/pwm
output for display light
KLIGHT UEM UI Out Dig 100mA /
Vbatt
Switch/
100Hz
pwm
Open drain switch/pwm
output for key light
ACCDIF lines, no bus * Wired Digital Accessory Interface, only to test pattern
MBUS UEM Test
Pad 7
In/
Out
Dig 0/2.7 V 9k6bit/s Mbus bidirectional asyn-
chronous serial data bus/
FDL clock, 0-8MHz depends
on project
RIP
Signal
name
Connected
from - to
UEM I/O
Signal Properties
A/D Levels-Freq./
Timing resolution
Description / Notes