433/868/915MHz RF Transceiver with …

1 product SPECIFICATIONMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision: 1 of 104 June 2004nRF9E5433/868/915 MHz RF Transceiver withEmbedded 8051 CompatibleMicrocontroller and 4 Input, 10 Bit ADCFEATURES nRF905 433/868/915 MHz Transceiver 8051 compatible microcontrollerAPPLICATIONS Sports and leisureequipment 4 input, 10bit 80ksps ADC Single to supply Alarm and securitysystem Small 32 pin QFN (5x5 mm) package Industrial sensors Extremely low cost Bill of Material (BOM) Remote control Internal VDD monitoring Surveillance A standby with wakeup on timer or external pin Automotive Adjustable output power up to 10dBm Telemetry Channel switching time less than 650 s Keyless entry Low TX supply current, typical 11mA @-10dBm Toys Low RX supply current typical peak Low MCU supply current, typ.

2 1mA at 4 MHz @3volt Suitable for frequency hopping Carrier Detect for listen before transmit protocol GENERAL DESCRIPTIONnRF9E5 is a true single chip system with fully integrated RF Transceiver , 8051compatible microcontroller and a 4 input 10bit 80ksps AD converter. The Transceiver ofthe system supports all the features available in the nRF905 chip includingShockburstTM, which automatically handles preamble, address and CRC. The circuit hasembedded voltage regulators, which provides maximum noise immunity and allowsoperation on a single to supply. nRF9E5 is compatible with FCC standardCFR47 part 15 and ETSI EN 300 REFERENCE DATAP arameterValueUnitMinimum supply range-40 to +85 CSupply current in transmit @ -10dBm output power11mASupply current in receive current for -controller 4 MHz @ 3volt1mASupply current for transmit output power10dBmTransmitted data rate (Manchester-encoder embedded)100kbpsSensitivity-100dBmSupply current in power down Table 1 nRF9E5 quick reference SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision.

3 2 of 104 June 2004 ORDERING INFORMATIONType numberDescriptionVersionnRF9E5 IC32L QFN 5x5 mm-nRF9E5-EVKIT 433 Evaluation kit 868/915 Evaluation kit 868 2 nRF9E5 ordering DIAGRAMVDD_PA (19)AIN0 (29)AIN1 (28)AIN2 (27)AIN3 (26)AREF (30)IREF (23)A/DconverterCPU8051compatibleMicroco ntrollerTimer 2 Timer 1 Timer 0 UART07-channel interrupt4k byteRAMB ootloader256 byteRAMnRF905433/868/915 MHzRadioTranceiverXTAL oscillatorBIASRTC timerWATCH-DOGSPIPWMLow powerRCOscillatorPort logicPower mgmtResetRegulatorsMISO (11)MOSI (10)SCK (12)EECSN (13)XC1 (14)XC2 (15)VDD (4)VDD (17)VDD (25)VSS (16)VSS (18)VSS (22)VSS (24)DVDD_1V2 (31)VSS (5)P00 (32)P01 (1)P02 (2)P03 (3)P04 (6)P05 (7)P06 (8)P07 (9)ANT2 (21)ANT1 (20)25320 EEPROMSDOSDICSNSCK8. Ch programmableWakeupFigure 1 nRF9E5 block SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision: 3 of 104 June 2004 TABLE OF CONTENTS1 Architectural Clock, RTC Wakeup Timer, GPIO Wakeup and Current I/O Port Behavior During 0 (P0).

4 1 (P1 or SPI port)..157 Analog Power Interface AD Converter and - Radio General Purpose IO Subsystem (nRF905).. Modes of ShockBurst Power Reduced Power Converter Converter Converter Sampling and and AD Converter SPI Register Instruction Configuration Register - Configuration Register - Register SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision: 4 of 104 June Configuration Register Data Register Register Subsytem Switching TX RX Latency from Power Down Clock Wakeup Functions and LF Wakeup GPIO Wakeup Interface to Watchdog and Wakeup Saving 8051 Power Saving Power Down Format in External Data Function Registers Unique to Layout and Decoupling Connection to a Loop Layout Example, Differential Connection to a Loop Ended Connection to 50 Layout Example, Single Ended Connection to 50 the Chip as Maximum of SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision.

5 5 of 104 June 20041 ARCHITECTURAL OVERVIEWThis section will give a brief overview of each of the blocks in the block diagram inFigure MicrocontrollerThe nRF9E5 microcontroller is instruction set compatible with the industry standard8051. Instruction timing is slightly different from the industry standard, typically eachinstruction will use from 4 to 20 clock cycles, compared with 12 to 48 for the standard . The interrupt controller is extended to support 5 additional interrupt sources;ADC, SPI, 2 for the radio and a wakeup function. There are also 3 timers that are 8052compatible, plus some extensions, in the microcontroller core. An 8051 compatibleUART that can use timer1 or timer2 for baud rate generation in the traditionalasynchronous modes is included.

6 The CPU is equipped with 2 data pointers to facilitateeasier moving of data in the XRAM area, which is a common 8051 extension. Themicrocontroller clock is derived from the crystal Memory ConfigurationThe microcontroller has a 256-byte data ram (8052 compatible, with the upper half onlyaddressable by register indirect addressing). A small ROM of 512 bytes contains abootstrap loader that is executed automatically after power on reset or if initiated bysoftware later. The user program is normally loaded into a 4k byte RAM1 from anexternal serial EEPROM by the bootstrap loader. The 4k byte RAM may also (partially)be used for data storage in some Boot EEPROM/FLASHThe program code for the device must be loaded from an external non-volatile default boot loader expects this to be a generic 25320 EEPROM with SPIinterface.

7 These memories are available from several vendors with supply ranges downto The SPI interface uses the pins MISO (from EEPROM SDO), SCK (toEEPROM SCK), MOSI (to EEPROM SDI) and EECSN (to EEPROM CSN). When theboot is completed, the MISO ( ), MOSI ( ) and SCK ( ) pins may be used forother purposes such as other SPI devices or GPIO (General Purpose Input Output). Register MapThe SFR (Special Function Registers) control several of the features of the of the nRF9E5 SFRs are identical to the standard 8051 SFRs. However, there areadditional SFRs that control features that are not available in the standard SFR map is shown in Table 3. The registers with grey background are registers withindustry standard 8051 behavior. Note that the function of P0, P1 and P2 are somewhatdifferent from the standard even if the conventional addresses (0x80, 0x90 and 0xA0)are used.

8 1 Optionally this 4k block of memory can be configured as 2k mask ROM and 2k RAM or 4 k mask ROMPRODUCT SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision: 6 of 104 June 2004X000X001X010X011X100X101X110X111F8 EIPHWREVF0BE8 EIEE0 ACCD8 EICOND0 PSWC8T2 CONRCAP2 LRCAP2 HTL2TH2C0B8 IPCKLFCONB0 RSTREASSPI_DATASPI_CTRLSPICLKTICK_DVCK_C TRLTEST_MODEA8 IEPWMCONPWMDUTYREGX_MSBREGX_LSBREGX_CTRL A0P298 SCONSBUF90P1 EXIFMPAGEP0_DRVP0_DIRP0_ALTP1_DIRP1_ALT8 8 TCONTMODTL0TL1TH0TH1 CKCONSPC_FNC80P0 SPDPL0 DPH0 DPL1 DPH1 DPSPCONT able 3 SFR Register PWMThe nRF9E5 has one programmable PWM (Pulse-Width Modulation) output, which isthe alternate function of The resolution of the PWM is software programmable to6, 7 or 8 bits.

9 The frequency of the PWM signal is programmable via a 6 bit prescalerfrom the XTAL oscillator. The duty cycle is programmable between 0% and 100% viaone 8-bit SPInRF9E5 features a simple single buffered SPI (Serial Programmable Interface) 3 data lines of the SPI bus (MISO, SCK and MOSI) are multiplexed (by writing toregister SPI_CTRL) between the GPIO pins (lower 3 bits of P1) and the RF transceiverand AD subsystems. The SPI hardware does not generate any chip select signal. Theprogrammer will typically use GPIO bits (from port P0) to act as chip selects for one ormore external SPI devices. The EECSN pin is a general purpose IO dedicated as chipselect for the boot EEPROM. When the SPI interfaces the RF Transceiver , the chipselects are available in an internal GPIO port, Port LogicThe device has 8 general-purpose bi-directional pins (the P0 port).

10 Additionally the 4 SPI data pins may be used as general purpose IO (the P1). Most of the GPIO pins canbe used for multiple purposes under program control. The alternate functions includetwo external interrupts, UART RXD and TXD, a SPI master port, three enable/countsignals for the timers and the PWM output and a slow programmable timer. Each pin inthe P0 port can be programmed for high sink or source SPECIFICATIONnRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADCMain office: nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989 Revision: 7 of 104 June Power ManagementThe nRF9E5 can be placed into several low power modes under program control, andalso the ADC and RF subsystems can be turned on or off under program control.