Block Diagram

FCC ID: PQN44438TX2G4

Block Diagram

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FCCID_1936726

44438 Quad Flyer TX Block Digram J VR POWER 2412—2469MHz 16MHz ¥1 xtz 10 PEQ3SP MCU+ 2.4G MODULE U1 RX4056 Current ETA1483 Control PDF created with pdffFactory trial version www.pdffactory.com

nRF24LE1 Preliminary Product Specification 2.2 Block diagram Program Data NVMEM (FLASH) (SRAM) (FLASH) VREG1V7 VDD_1V7 Memory bus decoder 1.9 V - 3.6V VREG1V2 VDD_1V2 MEM-bus System Crypt Watch RTC RNG dog CPU Config CoProc IRAM 256 byte SFR-bus Serial RF Interrupt Timers ports L01 i/f Transceiver Control SPI SPI 2-Wire Wakeup GPIO (SPI) R80515 Master Slave M/S Config OCI ADC i/f ADC Digital Crossbar PWM POR Brown out detector XOSC Retention Latches Comparator Debounce 16MHz CK16M mux Power Management WakeUP RCOSC OnPin Debounce 16MHz XOSC Debounce 32kHz CKLF Pin Crossbar mux RCOSC Debounce 32 kHz Multi purpose pins - bidir dig/ analog Figure 1. nRF24LE1 block diagram To find more information on the blocks, see Table 1. below: Name Reference Memory (Program, Data, NVMEM) Chapter 5 on page 62 Power management Chapter 11 on page 102 RF Transceiver Chapter 3 on page 16 2-Wire Chapter 20 on page 154 SPI (Master and Slave) Chapter 18 on page 142 GPIO Chapter 17 on page 127 PWM Chapter 23 on page 169 Watchdog Chapter 10 on page 100 Table 1. Block diagram cross references Revision 1.1 13 of 191

nRF24LE1 Preliminary Product Specification 3.2 Block diagram RFCON.rfce RF Transmitter Baseband RFCON.rfcsn TX GFSK TX FIFOs PA Filter Modulator SPI SPI (Slave) (Master) Enhanced ShockBurst RF Receiver Baseband Engine ANT1 RFIRQ RX GFSK Register map LNA Filter Demodulator ANT2 RX FIFOs RF Synthesiser Power Management Radio Control RFCON.rfcken XOSC16M Figure 5. RF Transceiver block diagram 3.3 Functional description This section describes the different operating modes of the RF Transceiver and the parameters used to control it. The RF Transceiver module has a built-in state machine that controls the transitions between the different operating modes. The state machine is controlled by SFR register RFCON and RF transceiver register CONFIG, see section 3.5 for details. 3.3.1 Operational Modes You can configure the RF Transceiver to power down, standby, RX and TX mode. This section describes these modes in detail. 3.3.1.1 State diagram The state diagram (Figure 6.) shows the operating modes of the RF Transceiver and how they function. At the end of the reset sequence the RF Transceiver enters Power Down mode. When the RF Transceiver enters Power Down mode the MCU can still control the module through the SPI and the rfcsn bit in the RFCON register. There are three types of distinct states highlighted in the state diagram: • Recommended operating mode: is a recommended state used during normal operation. • Possible operating mode: is a possible operating state, but is not used during normal operation. • Transition state: is a time limited state used during start up of the oscillator and settling of the PLL. Revision 1.1 17 of 191


Document Created: 2013-03-22 15:01:51
Document Modified: 2013-03-22 15:01:51
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