Programmes After Market Services NPE-4 Series Cellular Phones 2 - Broadband System Original ãNokia Corporation.
NPE-4 2 - Broadband System PAMS Technical Documentation Table of Contents Description Page No. 5 Introduction ...................................................................................................................................... Abbreviations .................................................................................................................................... 5 Environmental specification ........................................................................................
PAMS Technical Documentation NPE-4 2 - Broadband System Description Page No. Flash programming ................................................................................................................. 32 MCU boot .................................................................................................................................. 33 Flash identifiers ....................................................................................................................... 33 First word ...
NPE-4 2 - Broadband System PAMS Technical Documentation Description Page No. List of Figures (continued) Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 UEM charging state diagram, PWM mode only ................................................ Charging scenario where the battery is abruptly removed ............................
NPE-4 2 - Broadband System PAMS Technical Documentation Introduction This Chapter specifies the baseband module for the NPE-4 program. The baseband module includes the baseband engine chipset, The UI components and the acoustical parts for the transceiver. NPE-4 is a hand-portable GSM900/GSM1800 phone for the classic segment, having the DCT4 generation baseband- and RF circuitry. The key drivers for this product are GPRS data transmission and short time to market.
NPE-4 2 - Broadband System PAMS Technical Documentation Technical Summary Battery UI Baseband PA Supply HAGAR 13MHz 26MHz DLIGHT KLIGHT RF Supplies SLEEPCLK 32kHz CBUS/ DBUS RF RX/TX IRDA UPP UEM BB Supplies EAR SIMIF MIC BUZZO VIBRA M MBus/FBus External Audio Charger connection SIM MEMADDA FLASH CBUS USART Bluetooth DCT3 System connector Figure 1 NPE-4 baseband block diagram A draft block diagram is shown in Figure 1 NPE-4 baseband block diagram.
NPE-4 2 - Broadband System PAMS Technical Documentation buzzer driver receives a PWM signal where both frequency and duty-cycle are pre-set by register writings. For the vibra, a set of frequencies can be chosen. The frequencies are 64 Hz, 128 Hz, 258 Hz and 520 Hz and the duty cycle 2.9 % to 96.9 %. LCD and keyboard light LED drivers receive a PWM signal of 128 Hz where the duty-cycle can be programmed by setting a 4-bit register.
NPE-4 2 - Broadband System PAMS Technical Documentation Temperature Conditions Table 2: Temperature conditions for NPE-4 Environmental condition Ambient temperature Remarks Normal operation -25 ° C … +55 °C Specifications fulfilled Reduced performance +55 °C … +70 °C Operational for short periods only No operation or storage -40 °C > T > 85 °C No storage.
PAMS Technical Documentation NPE-4 2 - Broadband System Figure 2 UEM state diagram Original ãNokia Corporation.
NPE-4 2 - Broadband System PAMS Technical Documentation The text below explains the state diagram. The symbol 'ä' means that the voltage rises and 'æ' that the voltage drops. '®' Means the result of the conditions set on the left most side. VBAT < VMSTR and VBACK > V_BUCOFF ® Go to BACK_UP VBAT < VMSTR and VBACK < V_BUCOFF ® Go to NO_SUPPLY VBAT ä VMSTR+. VBACK < V_BUCOFF ® Go to DELAY1 VBAT > VMSTR. DELAY1 elapses ® Go to RESET VBAT ä VMSTR+.
PAMS Technical Documentation NPE-4 2 - Broadband System Backup In BACK_UP mode the main battery is either disconnected or has a low voltage level (VBAT < VMSTR- and VBACK > V_BUCOFF+). The regulator VRTC that supplies the real time clock is disabled in BACK_UP mode. Instead the unregulated backup battery voltage VBACK supplies the output of the VRTC. All other regulators are disabled and the phone has no functionality. The UEM will recover from BACK_UP mode into RESET mode if VBAT rises above VMSTR+.
NPE-4 2 - Broadband System PAMS Technical Documentation sleep) and thereby lowering the internal current consumption of the UEM. The regulator VANA is disabled and VR1 – VR7 are either disabled or in low quiescent mode. From SLEEP the UEM enters PWR_ON if SLEEPX goes high, PWR_OFF mode if watchdog elapses or BACK_UP mode if VBAT drops below VMSTR-. Protection mode The UEM has two separate protection limits for over temperature conditions, one for the charging switch and one for the regulators.
NPE-4 2 - Broadband System PAMS Technical Documentation 1) Controlled by MCU writing to UEM references register. 2) The second current value indicates the maximum possible output current of the regulator when in low quiescent mode. 3) The output voltages are split into two different current categories. The upper part is the lower range of output current, and the lower part is the higher range of output current. 4) UEMSLX is slave to SleepX from the UPP. Sets the UEM into sleep mode.
NPE-4 2 - Broadband System PAMS Technical Documentation Under normal conditions, the battery powers the baseband module. The battery voltage VBAT is regulated by individual regulators located within the UEM. These regulators supply the different parts of the phone. 8 regulators are dedicated to the RF module of the phone, and 6 to the baseband module. The VSIM regulator is able to deliver both 1.8 and 3.0 Vdc and thus supporting two different SIM technologies.
NPE-4 2 - Broadband System PAMS Technical Documentation Baseband UEM VR1A VR1B VR2-7 RF Regulators 6 SIM Boomer VSIM VCORE UPP VANA Baseband Regulators FLASH VIO RTC VFLASH1 VFLASH2 VBAT Battery LCD CHACON Backup battery DLR-3 switch Bluetooth IRDA PA Supply System Connecter Figure 4 Baseband power distribution Charging The charging of the main battery is controlled by the UEM.
NPE-4 2 - Broadband System PAMS Technical Documentation Connecting a charger to the telephone creates a voltage, VCH, on the UEM VCHAR input. When the VCH level is detected to rise above the VCHDET threshold (2.0 Vdc) by CHACON, charging starts. Level crossing detection of the VCHAR line is used to generate synchronizing pulses for UEM’s state machine for control of rectifier type chargers, e.g. ACP-7.
PAMS Technical Documentation NPE-4 2 - Broadband System Figure 7 UEM charging state diagram, PWM mode only In order to protect the phone from damage resulted by over voltage in the case that the battery is abruptly removed when charging is ongoing, the charger switch is closed immediately. This is detected by means of VBAT that will rise fast above VBATLIM1,2+ when the battery is removed. A scenario like this can be seen in Figure 8. Original ãNokia Corporation.
NPE-4 2 - Broadband System PAMS Technical Documentation Figure 8 Charging scenario where the battery is abruptly removed 1) Battery disconnected abruptly during charging 2) VBAT reaches VBATLIM1,2+ ® charging switch is turned off immediately 3) VBAT falls below VBATLIM1,2- ® charging switch is turned on (soft switching) 4) VBAT reaches VBATLIM1,2+ again ® charging switch is turned off 5) VBAT falls below VBATLIM1,2- once again ® charging switch is turned back on 6) The PWM signal from the UEM
PAMS Technical Documentation NPE-4 2 - Broadband System BSI connection in conjunction with 100 k_ pull-up resistors in the baseband module or in the desk-stand DCH-9 extra battery slot, which allows charging of extra battery. 2.78 V from VFLASH1 feeds the resistor in the baseband module and the resulting divided voltage is routed to the BSI ADC input in the UEM. Figure 9 Mechanical layout of DCT-3 battery The battery also contains a 47 k_ NTC resistor used for battery temperature measurements.
NPE-4 2 - Broadband System PAMS Technical Documentation Figure 10 UPP architecture Page 2-20 ãNokia Corporation.
PAMS Technical Documentation NPE-4 2 - Broadband System The DSP inside the Brain is a Lead3 16–bit DSP core from TI (Texas Interments), with a DMA controller, wait state generator and a program fetch of 32-bits. Furthermore, the DSP core has an instruction-length flexibility of 8 to 48-bits. The maximum frequency for the DSP core is 145MHz for the NPE-4 baseband, although the maximum frequency for the core itself is 400 MHz. The core can do single and dual mac-operations per clockcycle.
NPE-4 2 - Broadband System PAMS Technical Documentation Dome sheet Light guide LCD Connector Gasket Frame "Displa RTC Battery Figure 11 Complete overview of LCD module Below is the general specifications listed: • Glass size, width x height x thickness (incl. caps) : 38.4 mm x 37.6 mm x 2.75 mm • Viewing area (width x height) : 35.4 mm x 27.7 mm • Active pixel area (width x height) : 30.609 mm x 24.1 mm • Number of pixels : 96 columns x 65 rows • Pixel height to width ratio : 1.
NPE-4 2 - Broadband System PAMS Technical Documentation Au Connector pads C C FPC Viewing area SEG 95 COM 0 SEG 0 Driver C COM 64 Active area 96 x 65 Top View Figure 12 LCD module. The LCD is powered from both VFLASH1 and VIO. VFLASH1 is used for the boosting circuit and VIO for the driver chip.
NPE-4 2 - Broadband System PAMS Technical Documentation Keyboard light The keyboard light consists of 6 yellow/green LED's (NPE-3 type) which are placed under the keyboard and use the light guide to distribute the light. The driver circuit is the same as described above in section LCD Backlight, with the difference of a current of 60 mA, i.e. 10 mA pr. LED. The keyboard LED's can also be controlled by a 128 Hz PWM signal from the UEM, KLIGHT.
NPE-4 2 - Broadband System PAMS Technical Documentation The buzzer is electrically connected to the PWB by spring contacts. Keypad See keypad interface in section Keypad interface on page Keypad interface. IR-module The IR module CIM-93M4 is fully compliant with the IrDA1.2.a and supports data rates of 9600 bps to 1152 kbps. The module is connected to the UEM IR module, which acts as a level-shifter between the IR module and the UPP. The UEM IR module supports the data rates of the CIM-93M4.
NPE-4 2 - Broadband System PAMS Technical Documentation The SIM power up/down sequence is generated in the UEM. The Battery Type contact signal (BSI) is used to recognise if the battery suddenly is removed from the transceiver block. The SIMCardDet is not used. If the BSI goes low, the power down sequence is automatic initiated. The SIMIF will then force all the connections low, i.e. SIMRST, SIMCLK, SIMDATA and VSIM. A comparator inside the UEM does the monitoring of the BSI signal.
PAMS Technical Documentation NPE-4 2 - Broadband System Furthermore the memory is capable of handle burst-mode (multiplexed address/databus) and memory blocking, which is controlled by the UPP. Read cycle. The read cycle is initiated by first applying the address to the multiplexed address/databus. The address is latched at the rising edge of the AVD-signal. The memory device captures the address/data bus-state at point B.
NPE-4 2 - Broadband System PAMS Technical Documentation sured from a stable address, falling-edge of AVD or falling-edge of CE which ever occurs last. No clock is provided for a random access. The below figure shows a basic write waveform. Figure 17 Write waveform (Random access) Power saving signal (PS). In order to reduce the power consumption on the bus a Power Save function is introduced. This function reduces the amount of switching on the external bus.
PAMS Technical Documentation NPE-4 2 - Broadband System Data on the address/data bus is bit wise compared which means that the data previously on D0 (D0e) is compared with the new data to be output on D0 (D0i). If the two data elements are the same (D0e=D0i) a logic “0” is indicated to the comparing device. If the two data elements are not the same (D0e=NOT(D0i)) a logic “1” is indicated to the comparing device.
NPE-4 2 - Broadband System Figure 19 PAMS Technical Documentation The comparison shows more unequal bits than equal bits, and the bits are inverted on the bus. The power save (PS) function is only active in burst mode due to delay in the readings (Random access). If it were used in random access, it would have introduced a delay of 10 – 15 ns. The PS is not activated in the first access in the burst, only from the second access in the burst.
PAMS Technical Documentation NPE-4 2 - Broadband System requires hardware interaction before locking can be changed (protects infrequently changed code blocks). For this purpose, a dedicated pin called WP is used. The WP-pin or signal is only controlled by the hardware. Lock block: The blocks’ default power-up or reset status is locked. Locked blocks are fully protected from alteration. Attempted program or erase operations to a locked block will return an error in a status register inside the flash.
NPE-4 2 - Broadband System PAMS Technical Documentation Burst mode. The flash device supports burst-mode. The purpose is to improve the date rate between the flash and the UPP. The burst-mode can only be used for read operations. It is possible to access the memory in burst-mode over the entire memory except for the 8 x 8 Kbytes sectors. When using burst-mode at least 4 word (4*16 bits) is read from the flash.
PAMS Technical Documentation NPE-4 2 - Broadband System valid until MCU sets a bit in the UEM register, which indicates the "end of flash programming". Setting this bit also clears the compare register in the UEM previously loaded, at the falling edge of the BSI signal. During the "flash programming mode" the UEM watchdog is disabled. When the bit is set it indicates "end of flash programming" and it resets the UEM watchdog timer to it’s default value.
NPE-4 2 - Broadband System PAMS Technical Documentation Fifth Word. This word contains information of the external SRAM if it is available on the baseband, the size of it and the amount of wait states to be used when accessing it. Absolute maximum ratings (AMD 64Mbit). Table 6: Absolute maximum ratings for AMD 64 Mbit Parameter Rating Remarks Supply voltage (Vcc) -0,5 V to +4,0 Volt Minimum DC voltage on input or I/O pins is -0.5 V VPP and RESET -0.5 V to +12.
PAMS Technical Documentation NPE-4 2 - Broadband System HW Interfaces Keypad interface The NPE-4 phone doesn't have separate keyboard PWB. The keys are directly connected via the KEYB(10:0) bus to the UPP. The keypad consist of a 5x4 matrix, meaning 5 rows (R0 – R4) and 4 columns (S1 – S4). Figure 21 NPE-4 keypad When there is no key pressed, all the inputs from the rows are high due to that the UPP has internally pull-up resistors on those lines. All the columns are low at this state.
NPE-4 2 - Broadband System PAMS Technical Documentation LCD Interface LCD connection from main PWB to FPC contact on LCD is made with an 8-pin spring connector (same as in Hda12). Table 8: LCD Module pin-out to PWB Pin 1 Signal Symbol XRES Parameter Typ. Max. Unit 0.3 x VDDI V Logic Low, active 1000 ns for valid reset 0.7 x VDDI V Logic High V Logic Low, active Reset trw 2 Min. XCS Chip Select 0.
NPE-4 2 - Broadband System PAMS Technical Documentation SIM interface The SIM interface supports both 1.8V & 3V with 255 entries. The figure below shows the placement of the individual SIM pins. Bottom connector RF area Antenna 4 5 6 3 2 1 BB area Component view Figure 22 Placement of SIM pins (Phone bottom view) Table 9: SIM Connector Interface Pin 1 2 Name Parameter SIMCLK Frequency Trise/Tfall SIMRST Voh Vol 3 VSIM 3V SIM Card 1.8V SIM Card Min Typ Max Unit 1.05 3.25 3.
NPE-4 2 - Broadband System PAMS Technical Documentation Ostrich The STI-block, placed in the UPP "brain block", has a trace interface that can be used for tracing messages written by the DSP or the MCU. Writings or reading to a specific I/O register or an address match on the MCU address bus can be traced on the interface. The interface consists of three lines plus a GND line.
NPE-4 2 - Broadband System PAMS Technical Documentation BT module interface SW interface The BT102 component differs from all other components by having its own controlling software. Bluetooth MCM represents the controlling SW physically programmed into the BT102 module.
NPE-4 2 - Broadband System PAMS Technical Documentation HW interface HAGAR UPP RFClk VCXO Battery 26MHz UEM 13MHz VCC SLEEPX VIO & OSCON GPP7 – FBUS-RX RESETX SleepX SYSCLK PURX SleepX Vflash1 SleepClk PURX SLPCLK USARTTx USARTRx LPRFSync LPRFInt VBat SleepClk VREG GPP6 – FBUS-TX GPP0 - LPRFSync HELGE GPP1 - LPRFIntReq VAPPL VBBEN EN26MHZ VDD ANT VPP GND Figure 25 BT102 HW interface The below table describes the signals covering the interface between the BT module and th
NPE-4 2 - Broadband System PAMS Technical Documentation Table 12: BT – BB interface description Signal name From To Parameter Min. UEM MCM Voltage MCM Typ. Max. Unit Notes 1.40 1.80 V Defines system clock. "1" = 26 MHz Logic "1" 1.26 1.80 V Sleep clock input Logic "0" 0 0.54 V Frequency 32763 32773 Hz MCM Voltage 1.40 1.80 V Stan2 regulators enable AND circuit MCM Logic "1" 1.40 1.80 V Logic "0" 0 0.20 V Active mode = "1" MCM AND circuit Logic "1" 1.40 1.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 12: BT – BB interface description Signal name From To Parameter Min. MCM LPRFS Logic "1" ync Logic "0" Typ. Max. Unit 1.26 1.80 V 0 0.54 V LPRFIn Logic "1" t Logic "0" 1.26 1.80 V 0 0.54 V USART Logic "1" Rx Logic "0" 1.26 1.80 V 0 0.54 V USART Logic "1" Tx Logic "0" 1.26 1.80 V 0 0.54 V Notes MCM pin # GPP0 38 GPP1 MCM 37 GPP6 MCM 28 GPP7 27 GPP10 36 GPP11 35 CENX 34 MCM CBUSC MCM lk Logic "1" 1.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 13: Digital signals Signal name From To Parameter RFICCNTRL (2:0) UPP HAGAR RFICCntrl_2 RFBUSEN1X SLE Logic "1" Logic "0" RFBUSDA UPP HAGAR RFICCntrl_1 RFBUSDA SDATA Logic "1" Logic "0" RFICCntrl_0 RFBUSCLK 1.5 2,9 UPP output 1,44 1.80 V RF Chip select. Note 1 Hagar input 0 0.5 V Active Low UPP output 0 0,4 V Hagar input 1.5 2,9 V UPP output 1,44 1.
NPE-4 2 - Broadband System PAMS Technical Documentation Analogue Signals The values indicated in the table below are input requirements of the device in the "to column". In case the output device in the "from column" causes any restrictions it is noted. Values are referenced to gnd unless otherwise specified. Table 14: Analogue signals Signal name From To Clock LPRFCLK Parameter Min Typ Max VCXTXO buffer BT102 Frequency module 26 -20 Duty cycle 30 Signal amplitude (26 MHz) 0.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 14: Analogue signals Signal name From To Parameter Min Typ Max Unit Notes RXQP HAGAR UEM 1.35 Vpp (RFCONV_2) RXQ RXQINP Max input Voltage swing Positive quadrature phase RX signal 1.4 V Nominal Voltage swing DC level 1.3 1.35 I/Q amplitude mismatch I/Q phase mismatch -0,5 Input BW RF UEM (RFCONV_3) VREFRF02 RXQINN TXIP UEM (RFCONV_4) TXIOUTP Vdc 0.2 dB 0,5 Deg.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 14: Analogue signals Signal name From TXQN UEM (RFCONV_7) TXQOUTN To Parameter Min Typ Max HAGAR Max Differential 2.15 2.2 2.25 Unit Notes Vpp Negative TX signal (program-able voltage swing) output swing TXQ_180 (ref. TxQP) Input diff. Swing 1,0 Vpp (ref. TxQP) DC level 1.17 1.20 Source impedance Output Signal frequency RFAUXCONV(2:0) TXC UEM RFAUXCONV_0 AUXOUT 1.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 14: Analogue signals Signal name From To Parameter Min Typ Max Unit Notes SLOWADC_5 HAGAR UEM Input voltage 0 V HGR_TEMP RFTemp PA Temp HAGAR temperature monitoring read by AUX DAC Resolution Hagar Temp. coeff. 2.7 10 Bits -10% -2,67 +10% mV/°C Hagar Output @ -20 deg.C 1,82 Vdc Hagar Output @ +25 deg.C 1,7 Vdc Hagar Output @ +60 deg.C 1,61 Vdc * Power coeficient is defined as the relative TXC voltage level wrt.
NPE-4 2 - Broadband System PAMS Technical Documentation Voltage Supplies and References Table 15: Regulators and references Signal name From To Regulators VR1A Parameter Min Typ Max UEM HAGAR UEM Output Voltage VCP UEM Load Capacitance 4.6 4.75 0 *) UEM UEM 4.9 20 5 Note mA 600 300+t d2 UEM Supply to : Load Current 0.
NPE-4 2 - Broadband System PAMS Technical Documentation Table 15: Regulators and references Signal name From To VR7 UEM VCO Parameter Output voltage 2.70 Load Current References VREF01 RFCONV_8 Min Typ Max 0.1 2.78 2.86 ) 45 Load Capacitance 800 1000 1200 Settling Time 10 20 ) 600 UEM VREFRF01 HAGAR Output voltage 1.334 1.35 V Supply to : mA VCO nF mW ESR us Sleep to Active VB_ext Load Current 800 1.366 V Used inside HAGAR as 1.
NPE-4 2 - Broadband System PAMS Technical Documentation FBUS FBUS is an asynchronous data bus having separate TX and RX signals. Default bit rate of the bus is 115.2 Kbit/s. FBUS is mainly used for controlling the phone in the production and for interface to PC via DLR-3 or DAU-9P. Secondly, it can be used for flashing purpose after the production phase. Table 17: FBUS interface Signal Parameter Min Typ Max Unit FBUS_RX VIH 1.95 2.78 3.0 Volt VIL 0 0.2 0.83 VOH 1.95 2.78 2.
NPE-4 2 - Broadband System PAMS Technical Documentation EMC design The connections, which are worth using in external audio line, are presented below. The component values are chosen from NPE-3 but the varistors replaces the zener diodes used in NPE-3 because they have equally threshold level for positive an negative signals – the aim is to avoid demodulation. But the phone PWB layout affects also the EMC performance so NPE-4 cannot rely on only the passive components.
NPE-4 2 - Broadband System PAMS Technical Documentation XMICBIAS 2k2 27pF MICP XMICP LF Audio filter 47k Ferrite bead @ 120 MHz 1k 33 nF UEM Near connector 10nF 10nF 27pF Ferrite bead @ 120 MHz 33 nF MICN XMICN 1k 27pF 330 R for audio 10nF Figure 27 XMIC connection • The ferrite bead (common mode coil) is effective at low frequencies up to app. 100MHz the resonance @ 120MHz.
PAMS Technical Documentation NPE-4 2 - Broadband System Conducted and radiated immunity tests The layout and common-mode/differential mode filter components are checked for audio break through by checking whether • Phone passes conducted test with 6 V and radiated 6 V / meter (SPR) with accessories TDMA noise As it is not possible in DCT3 accessories to keep the RF impedance symmetric (mainly XEAR but also the bias resistors causes impedance mismatches) NPE-4 will cause some problems in the car-kit/head
Page 2-54 ãNokia Corporation.
NPE-4 2 - Broadband System PAMS Technical Documentation BT and some RF Testpoints C724, RXINP C725, RXQINP R764,1, TXIOUTP R764,3, TXIOUTN R766,1, TXQOUTP R766,3, PXQOUTN P26, SLEEPCLK J143, USARTTx J144, USARTRx P32, VAPPL P34, CBUS_Enx P6, VREG P35, CBUS_Da P36, CBUS_CLK P37, LPRFint P52,53,54, VBAT PURX Original P50, SYSCLK ãNokia Corporation.
NPE-4 2 - Broadband System PAMS Technical Documentation This page intentionally left blank Page 2-56 ãNokia Corporation.
