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Signal Name From To Signal Description
REF_CLK U14 U15 26MHz System Clock
AFC U1 U14 Automatic Frequency Control - Is used to ensure accurate frequency Information
APC U1 U13 Automatic Powert Control - Sets the PA output level
PAENA U7 U13 Chip enable for PowerAmp IC
HSO U1 J5 Headset 32 ohm driver (single ended)
BATT_TEMP U1 J1 Monitors the Battery of the Battery during Charge
BDR U1 U7 Downlink Processed Digital Baseband Audio Information
BDX U7 U1 Uplink Processed Digital Baseband Audio Information
BFSR U1 U7 Baseband Data Framesynch Receive
BFSX U7 U1 Baseband Data Framesynch Transmit
CLK13MHz _OUT U7 U1 System Clock to Power Control IC
COL 0 - 3 U7 Keypad Matrix Forms part of Keypad Matrix
CTS_MODEM U7 TP9 Clear To Send
DAC U1 BQ1 Used to allow a path to earth for VBAT through the Vibrator motor
DCS_RX U17 U15 Received DCS Antenna Frequency Signal
DCS_PA U13 U17 Amplified DSC PA output Transmit Frequency
DLPWR U1 TP27/TP3 Used to Power on the unit when appropriate accessory is connnected
DSR_MODEM U7 TP11 Data Set Ready
DTR_MODEM U7 TP10 Data Terminal Ready
EARN U1 Voice Receiver Negative Audio Voice to Receiver
EARP U1 Voice Receiver Positive Audio Voice to Receiver
EXT_FIQ U1 U7 Fast external interrupt for ARM
EXT_IRQ U1 U7 External interrupt for ARM
FDP U7 U100 The Flashreset/deeppower-downmode control,
GSM_RX U17 U15 Received GSM Antenna Frequency Signal
GSM_TX_EN U7 U17/U13 Used both within the RF switch and the TX VCO to select the GSM Frequency Band
GSM_PA U13 U17 Amplified GSM PA output Transmit Frequency
EAR_DETECT U7 J5 Headset Detect
HS_EN U7 U11/U12 Analog switch control(MODEM or Headset)
HSMICBIAS U1 J5 Headset Microphone bias supply(2.5V)
HSMICIP U1 U11 Headset Microphone amplifier input (single ended)
LCDAO U7 Display LCD driver detect
LEDKEY_EN U7 BQ4 When this signal goes high, the Keypad backlights are illuminated
LEDC U1 R50 Precharge indication
MCUDI U1 U7 ARM Input serial data.
MCUDO U7 U1 ARM Output serial data.
MCUEN0 U7 U1 ARM Configurable enable triggers (edge/level)
MICBIAS U1 R5 Microphone bias supply(2V)
MICIN MIC1 U1 Negative analogue uplink audio from on board Microphone
MICIP MIC1 U1 Positive analogue uplink audio from on board Microphone
nCHG U5 U4 Over Voltage Protection control signal
PCHG U1 R235 Battery Precharge Current
nBHE U7 U24 Enable to address High Byte Information
nBLE U7 U24 Enable to address Low Byte Information
nFOE U7 U24, U100 Flash and SRAM output Enable - Active Low
nRESET U7 LCD Reset of external peripheral
nSC0 U7 U100 Used as Chip Enable for the Flash Memory
nSC1 U7 U24 Used as Chip Enable for the SRAM
PWON U1, pin F8 S1 This signal is grounded to Earth when the Power key is pressed
RESPWRONZ U1 U7 Chip power on reset
RF_CLK U7 U15 Transceiver / Processer Serial Communication Data Clock
RF_DAT To / From U7 To / From U15 Transceiver / Processer Serial Communication Data
RF_LE U7 U15 Transceiver / Processer Serial Communication Data Latch
RTS_MODEM U7 TP12 Request To Send.
RX_MODEM U7 TP14/U11 Receive Data
VRF U15 U16 Support voltage for T/R switch control
RNW U7 U24, U100 Read and Write - allows information to be wriiten or read from the memory devices
ROW 0 - 4 U7 Keypad Matrix Forms part of Keypad Matrix
ROW4 U7 D3 This signal is pulled low when the Power key is pressed
RTC_ALARM U7 U1 Wakeup interrupt of real time clock
RX_IrDA External accessory U7 Transmitted Infra-red information from an Infrared accessory
RXIP, RXIN, RXQP,
U15 U1 Downlink Quadrature Baseband analogue signals carrying audio information
RXQN
S_PWCT U7 R39 SIM power control
SCLK3 U7 U1 Sim Clock output from Processor
SCLK5 U1 SIM card holder SIM data Clock
SIO3 To/From U7 To/From U1 SIM Data Communication between Processor and Power Control IC
SIO5 To/From U1 SIM card holder Data Communications path between SIM card and Power Control IC
SRST3 U7 U1 SIM Reset from Processor
SRST5 U1 SIM card holder SIM Reset from power Control IC
SWITCHONOFF U1 U7 Informs the Processor that the unit has received a signal to switch on
TCXOEN U7 U15 Xtal select(pull high for Crystal) and Xtal enable (VCXO and buffer supply)
TCK U1 TP17U7 Scan test clock
TDI U1 TP8/U7 Scan path input
TDO U7 U1 Scan path output
TDR U7 U1 Time serial port input data
TEMP_SEN U15 U1 Temperature sense(current SW not support)
TMS U1 U7 JTAG test mode select
TSPACT0 U7 U15 RITA Serial interface reset
TX_MODEM U7 TP13/U12 Transmit Data
TEN U7 U1 Time serial port enable
TRENA U7 U16 T/R switch enable
DCS_TX U15 U13 TX VCO generated transmit DCS Frequency
GSM_TX U15 U13 TX VCO generated transmit GSM Frequency
TX_IrDA U7 TP36 Transmitted Infra-red information to an Infrared accessory
TXIP, TXIN, TXQP,
U1 U15 Uplink Quadrature Baseband analogue signals carrying audio information
TXQN
VBACKUP C38 U1 RTC battery Voltage Back up
VADCID U1 TP29 Not use
UPR U1 U1 Uninterrupted power rail output(VRMEM voltage selection)
VCCS U1 U1 Charger transistor sense
VBAT Battery Pad J1 Various Battery Voltage for supply purposes
VCHG Charging jack, J13 U4 Supply voltage for charging from adaptor
VCHG_VBAT J13 U4/U5 External Power
VCHG1 U1 U1 Charger voltage sense input
VCLKRX U1 U7 Voiceband Data transfer Clock
VDR U1 U7 Voiceband serial port receive data
VDX U7 U1 Voiceband serial port transmit data
VFSRX U1 U7 Voiceband Data Frame Sychronisation Signal
D[0..15] U7 U100/U24 Data Bus for Flash and SRAM memory
A[1..22] U7 U100/U24 Address Bus for Flash and SRAM memory
nRESET U7 Display The LCM reset
VRIO_2.8V U1 U7 For CalpysoLite_G2 power supply
VRIO_2.8V U1 Display LCM backlight power supply
VRIO_2.8V U1 U11/U12 For analog switch power supply
VRIO_2.8V U1 U15 For RITA Serial interface power supply
SCL U7 Display I2C INTERFACE Master serial clock for LCM
SDA U7 Display I2C INTERFACE Serial bidirectional data for LCM
VRDBB_1.5V U1 U7 For CalpysoLite_G2 power supply
VRRAM_2.8V U1 U24 For SRAM power supply
VRMEM_2.8V U1 U100 For Flash power supply
VRSIM U1 CONN1 For SIM card power supply
VRRTC_1.5V U1 U7 Regulator RTC output