User Guide

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List of Test Points
Test Points
Signal Test point Function Characteristics Note
Signal
Test point Function Characteristics Note
STISClk PRODTP1 STI serial clock Digital signal 1.8 V FMWrEn J358 FM-radio write enable Digital signal 1.8 V From UPP to FM-radio
FBUSTXO PRODTP2 Flash programming data
and phone control
2.78V digital signal From phone to FPS-8/
PC
FMClk J359 Reference clock for FM-
radio, 32 kHz
Digital signal 1.8 V From UPP to FM-radio
FBUSRXO PRODTP3 Flash programming data
and phone control
2.78V digital signal From FPS-8/PC to
phone
SIMDATA J386 SIM data Digital signal 1.8 / 3V From / to UEM / SIM card
STITxD PRODTP4 STI data (Tx) Digital signal 1.8 V SIMRST J387 SIM reset Digital signal 1.8 / 3V From UEM to SIM card
STIRxD PRODTP5 STI data (Rx) Digital signal 1.8 V SIMCLK J388 SIM clock 3.25MHz digital clock signal
1.8 / 3V
From UEM to SIM card
VPP PRODTP6 Flash programming volt-
age
1.8V internal voltage
12V external voltage
VSIM J389 Power supply for SIM
card
1.8V or 3V Depends on the SIM card
MBUS PRODTP7 Flash programming clock
and phone control
2.78V digital signal
6.5 MHz max.
Bi-directional phone
control
PURX J402 Power up reset 1.8V digital signal From UEM to UPP
GND PRODTP8 Ground SLEEPX J403 Sleep mode control signal 1.8V when not in sleep
0V when in sleep mode
NC PRODTP9 Not used SLEEPCLK (40) J404 Sleep mode timing clock 32.768kHz digital clock 1.8V
VBATT
(10)
J100 Battery voltage UEMINT J405 Interrupt request for UPP 1.8V digital signal From UEM to UPP
BSI J101 Battery size indicator
Local mode indicator
SIM removal indicator
Flash programming start
signal
1V in normal mode
0V in local mode
If BSI line rises > 2.1V
2.78V BSI pulse
To UEM A/D converter CBUSCLK J406 Serial control bus clock 1MHz digital clock signal
1.8V
From UPP (MCU) to UEM
Controlled by MCU
BTEMP J102 Battery temp. Indicator
Test mode indicator
About 0.8V at 25°C
0V in test mode
CBUSDA J407 Serial control bus data
input/output
1.8V digital signal Between UPP (MCU) and
UEM
Controlled by MCU
HSEAR L J103 FM radio audio L Production testpoint CBUSENX J408 CBUS enable signal 1.8V digital signal From UPP (MCU) to UEM
Controlled by MCU
HSEAR R J104 FM radio audio R Production testpoint MBUSTX J409 MBUS from UPP to UEM 1.8V digital signal
FMANT J105 FM radio antenna Production testpoint MBUSRX J410 MBUS from UEM to UPP 1.8V digital signal
ENB J152 Audio amplifier enable Digital signal 1.8 V From UPP to amplifier FBUSTX J411 FBUS from UPP to UEM 1.8V digital signal
CLK J153 Audio amplifier serial
clock
Digital signal 1.8 V From UPP to amplifier FBUSRX J412 FBUS from UEM to UPP 1.8V digital signal
DATA J154 Audio amplifier data Digital signal 1.8 V From UPP to amplifier DBUSCLK J413 DBUS clock 13MHz digital clock signal
1.8V
From UPP (DSP) to UEM
Generated by UPP
VFLASH1 J300 Supply voltage to LCD 2.78 V From UEM to LCD DBUSDA (50) J414 DBUS data input/output 1.8V digital signal Between UEM and UPP
(DSP)
VIO (20) J301 Supply voltage to LCD
(IO)
1.8 V From UEM to LCD DBUSEN1X J415 DBUS selection and ena-
ble
1.8V digital signal From UPP (DSP) to UEM