Datasheet nRF52840 (Nordic Semiconductor) - 2

Feature list
Features:
• Bluetooth® 5, IEEE 802.15.4-2006, 2.4 GHz transceiver • Flexible power management • -95 dBm sensitivity in 1 Mbps Bluetooth® low energy mode • 1.7 V to 5.5 V supply voltage range • -103 dBm sensitivity in 125 kbps Bluetooth® low energy mode (long range) • On-chip DC/DC and LDO regulators with automated low • -20 to +8 dBm TX power, configurable in 4 dB steps current modes • On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series • 1.8 V to 3.3 V regulated supply for external components • Supported data rates: • Automated peripheral power management • Bluetooth® 5: 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps • Fast wake-up using 64 MHz internal oscillator • IEEE 802.15.4-2006: 250 kbps • 0.4 µA at 3 V in System OFF mode, no RAM retention • Proprietary 2.4 GHz: 2 Mbps, 1 Mbps • 1.5 µA at 3 V in System ON mode, no RAM retention, wake on RTC • Single-ended antenna output (on-chip balun) • 1 MB flash and 256 kB RAM • 128-bit AES/ECB/CCM/AAR co-processor (on-the-fly packet encryption) • Advanced on-chip interfaces • 4.8 mA peak current in TX (0 dBm) • 4.6 mA peak current in RX • USB 2.0 full speed (12 Mbps) controller • RSSI (1 dB resolution) • QSPI 32 MHz interface • ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz • High-speed 32 MHz SPI • Type 2 near field communication (NFC-A) tag with wake-on • 212 EEMBC CoreMark score running from flash memory field • 52 µA/MHz running CoreMark from flash memory • Touch-to-pair support • Watchpoint and trace debug modules (DWT, ETM, and ITM) • Programmable peripheral interconnect (PPI) • Serial wire debug (SWD) • 48 general purpose I/O pins • Rich set of security features • EasyDMA automated data transfer between memory and • ARM® TrustZone® Cryptocell 310 security subsystem peripherals • NIST SP800-90A and SP800-90B compliant random number generator • Nordic SoftDevice ready with support for concurrent multi- • AES-128: ECB, CBC, CMAC/CBC-MAC, CTR, CCM/CCM* protocol • Chacha20/Poly1305 AEAD supporting 128- and 256-bit key size • 12-bit, 200 ksps ADC - 8 configurable channels with programmable • SHA-1, SHA-2 up to 256 bits gain • Keyed-hash message authentication code (HMAC) • 64 level comparator • RSA up to 2048-bit key size • 15 level low-power comparator with wake-up from System OFF • SRP up to 3072-bit key size mode • ECC support for most used curves, among others P-256 (secp256r1) and • Temperature sensor Ed25519/Curve25519 • 4x 4-channel pulse width modulator (PWM) unit with EasyDMA • Application key management using derived key model • Audio peripherals: I2S, digital microphone interface (PDM) • Secure boot ready • 5x 32-bit timer with counter mode • Flash access control list (ACL) • Up to 4x SPI master/3x SPI slave with EasyDMA • Root-of-trust (RoT) • Up to 2x I2C compatible 2-wire master/slave • Debug control and configuration • 2x UART (CTS/RTS) with EasyDMA • Access port protection (CTRL-AP) • Quadrature decoder (QDEC) • Secure erase • 3x real-time counter (RTC) • Single crystal operation • Package variants • aQFN™73 package, 7 x 7 mm • WLCSP93 package, 3.544 x 3.607 mm 4413_417 v1.1 ii Document Outline Contents Feature list Revision history About this document 2.1 Document naming and status 2.2 Peripheral naming and abbreviations 2.3 Register tables 2.3.1 Fields and values 2.4 Registers 2.4.1 DUMMY Block diagram Core components 4.1 CPU 4.1.1 Floating point interrupt 4.1.2 CPU and support module configuration 4.1.3 Electrical specification 4.1.3.1 CPU performance 4.2 Memory 4.2.1 RAM - Random access memory 4.2.2 Flash - Non-volatile memory 4.2.3 Memory map 4.2.4 Instantiation 4.3 NVMC — Non-volatile memory controller 4.3.1 Writing to flash 4.3.2 Erasing a page in flash 4.3.3 Writing to user information configuration registers (UICR) 4.3.4 Erasing user information configuration registers (UICR) 4.3.5 Erase all 4.3.6 Access port protection behavior 4.3.7 Partial erase of a page in flash 4.3.8 Cache 4.3.9 Registers 4.3.9.1 READY 4.3.9.2 READYNEXT 4.3.9.3 CONFIG 4.3.9.4 ERASEPAGE 4.3.9.5 ERASEPCR1 ( Deprecated ) 4.3.9.6 ERASEALL 4.3.9.7 ERASEPCR0 ( Deprecated ) 4.3.9.8 ERASEUICR 4.3.9.9 ERASEPAGEPARTIAL 4.3.9.10 ERASEPAGEPARTIALCFG 4.3.9.11 ICACHECNF 4.3.9.12 IHIT 4.3.9.13 IMISS 4.3.10 Electrical specification 4.3.10.1 Flash programming 4.3.10.2 Cache size 4.4 FICR — Factory information configuration registers 4.4.1 Registers 4.4.1.1 CODEPAGESIZE 4.4.1.2 CODESIZE 4.4.1.3 DEVICEID[n] (n=0..1) 4.4.1.4 ER[n] (n=0..3) 4.4.1.5 IR[n] (n=0..3) 4.4.1.6 DEVICEADDRTYPE 4.4.1.7 DEVICEADDR[n] (n=0..1) 4.4.1.8 INFO.PART 4.4.1.9 INFO.VARIANT 4.4.1.10 INFO.PACKAGE 4.4.1.11 INFO.RAM 4.4.1.12 INFO.FLASH 4.4.1.13 PRODTEST[n] (n=0..2) 4.4.1.14 TEMP.A0 4.4.1.15 TEMP.A1 4.4.1.16 TEMP.A2 4.4.1.17 TEMP.A3 4.4.1.18 TEMP.A4 4.4.1.19 TEMP.A5 4.4.1.20 TEMP.B0 4.4.1.21 TEMP.B1 4.4.1.22 TEMP.B2 4.4.1.23 TEMP.B3 4.4.1.24 TEMP.B4 4.4.1.25 TEMP.B5 4.4.1.26 TEMP.T0 4.4.1.27 TEMP.T1 4.4.1.28 TEMP.T2 4.4.1.29 TEMP.T3 4.4.1.30 TEMP.T4 4.4.1.31 NFC.TAGHEADER0 4.4.1.32 NFC.TAGHEADER1 4.4.1.33 NFC.TAGHEADER2 4.4.1.34 NFC.TAGHEADER3 4.4.1.35 TRNG90B.BYTES 4.4.1.36 TRNG90B.RCCUTOFF 4.4.1.37 TRNG90B.APCUTOFF 4.4.1.38 TRNG90B.STARTUP 4.4.1.39 TRNG90B.ROSC1 4.4.1.40 TRNG90B.ROSC2 4.4.1.41 TRNG90B.ROSC3 4.4.1.42 TRNG90B.ROSC4 4.5 UICR — User information configuration registers 4.5.1 Registers 4.5.1.1 NRFFW[n] (n=0..12) 4.5.1.2 NRFHW[n] (n=0..11) 4.5.1.3 CUSTOMER[n] (n=0..31) 4.5.1.4 PSELRESET[n] (n=0..1) 4.5.1.5 APPROTECT 4.5.1.6 NFCPINS 4.5.1.7 DEBUGCTRL 4.5.1.8 REGOUT0 4.6 EasyDMA 4.6.1 EasyDMA error handling 4.6.2 EasyDMA array list 4.7 AHB multilayer 4.8 Debug and trace 4.8.1 DAP - Debug access port 4.8.2 CTRL-AP - Control access port 4.8.2.1 Registers 4.8.2.1.1 RESET 4.8.2.1.2 ERASEALL 4.8.2.1.3 ERASEALLSTATUS 4.8.2.1.4 APPROTECTSTATUS 4.8.2.1.5 IDR 4.8.2.2 Electrical specification 4.8.2.2.1 Control access port 4.8.3 Debug interface mode 4.8.4 Real-time debug 4.8.5 Trace 4.8.5.1 Electrical specification 4.8.5.1.1 Trace port Power and clock management 5.1 Power management unit (PMU) 5.2 Current consumption 5.2.1 Electrical specification 5.2.1.1 Sleep 5.2.1.2 COMP active 5.2.1.3 CPU running 5.2.1.4 NFCT active 5.2.1.5 Radio transmitting/receiving 5.2.1.6 RNG active 5.2.1.7 SAADC active 5.2.1.8 TEMP active 5.2.1.9 TIMER running 5.2.1.10 WDT active 5.2.1.11 Compounded 5.3 POWER — Power supply 5.3.1 Main supply 5.3.1.1 Main voltage regulators 5.3.1.2 GPIO levels 5.3.1.3 External circuitry supply 5.3.1.4 Regulator configuration examples 5.3.1.5 Power supply supervisor 5.3.1.6 Power-fail comparator 5.3.2 USB supply 5.3.3 System OFF mode 5.3.3.1 Emulated System OFF mode 5.3.4 System ON mode 5.3.4.1 Sub power modes 5.3.5 RAM power control 5.3.6 Reset 5.3.6.1 Power-on reset 5.3.6.2 Pin reset 5.3.6.3 Wakeup from System OFF mode reset 5.3.6.4 Soft reset 5.3.6.5 Watchdog reset 5.3.6.6 Brownout reset 5.3.6.7 Retained registers 5.3.6.8 Reset behavior 5.3.7 Registers 5.3.7.1 TASKS_CONSTLAT 5.3.7.2 TASKS_LOWPWR 5.3.7.3 EVENTS_POFWARN 5.3.7.4 EVENTS_SLEEPENTER 5.3.7.5 EVENTS_SLEEPEXIT 5.3.7.6 EVENTS_USBDETECTED 5.3.7.7 EVENTS_USBREMOVED 5.3.7.8 EVENTS_USBPWRRDY 5.3.7.9 INTENSET 5.3.7.10 INTENCLR 5.3.7.11 RESETREAS 5.3.7.12 RAMSTATUS ( Deprecated ) 5.3.7.13 USBREGSTATUS 5.3.7.14 SYSTEMOFF 5.3.7.15 POFCON 5.3.7.16 GPREGRET 5.3.7.17 GPREGRET2 5.3.7.18 DCDCEN 5.3.7.19 DCDCEN0 5.3.7.20 MAINREGSTATUS 5.3.7.21 RAM[n].POWER (n=0..8) 5.3.7.22 RAM[n].POWERSET (n=0..8) 5.3.7.23 RAM[n].POWERCLR (n=0..8) 5.3.8 Electrical specification 5.3.8.1 Regulator operating conditions 5.3.8.2 Regulator specifications, REG0 stage 5.3.8.3 Device startup times 5.3.8.4 Power fail comparator 5.3.8.5 USB operating conditions 5.3.8.6 USB regulator specifications 5.3.8.7 VBUS detection specifications 5.4 CLOCK — Clock control 5.4.1 HFCLK controller 5.4.1.1 64 MHz crystal oscillator (HFXO) 5.4.2 LFCLK controller 5.4.2.1 32.768 kHz RC oscillator (LFRC) 5.4.2.2 Calibrating the 32.768 kHz RC oscillator 5.4.2.3 Calibration timer 5.4.2.4 32.768 kHz crystal oscillator (LFXO) 5.4.2.5 32.768 kHz synthesized from HFCLK (LFSYNT) 5.4.3 Registers 5.4.3.1 TASKS_HFCLKSTART 5.4.3.2 TASKS_HFCLKSTOP 5.4.3.3 TASKS_LFCLKSTART 5.4.3.4 TASKS_LFCLKSTOP 5.4.3.5 TASKS_CAL 5.4.3.6 TASKS_CTSTART 5.4.3.7 TASKS_CTSTOP 5.4.3.8 EVENTS_HFCLKSTARTED 5.4.3.9 EVENTS_LFCLKSTARTED 5.4.3.10 EVENTS_DONE 5.4.3.11 EVENTS_CTTO 5.4.3.12 EVENTS_CTSTARTED 5.4.3.13 EVENTS_CTSTOPPED 5.4.3.14 INTENSET 5.4.3.15 INTENCLR 5.4.3.16 HFCLKRUN 5.4.3.17 HFCLKSTAT 5.4.3.18 LFCLKRUN 5.4.3.19 LFCLKSTAT 5.4.3.20 LFCLKSRCCOPY 5.4.3.21 LFCLKSRC 5.4.3.22 HFXODEBOUNCE 5.4.3.23 CTIV ( Retained ) 5.4.3.24 TRACECONFIG 5.4.3.25 LFRCMODE 5.4.4 Electrical specification 5.4.4.1 64 MHz internal oscillator (HFINT) 5.4.4.2 64 MHz crystal oscillator (HFXO) 5.4.4.3 Low frequency crystal oscillator (LFXO) 5.4.4.4 Low frequency RC oscillator (LFRC), Normal mode 5.4.4.5 Low frequency RC oscillator (LFRC), Ultra-low power mode (ULP) 5.4.4.6 Synthesized low frequency clock (LFSYNT) Peripherals 6.1 Peripheral interface 6.1.1 Peripheral ID 6.1.2 Peripherals with shared ID 6.1.3 Peripheral registers 6.1.4 Bit set and clear 6.1.5 Tasks 6.1.6 Events 6.1.7 Shortcuts 6.1.8 Interrupts 6.2 AAR — Accelerated address resolver 6.2.1 EasyDMA 6.2.2 Resolving a resolvable address 6.2.3 Use case example for chaining RADIO packet reception with address resolution using AAR 6.2.4 IRK data structure 6.2.5 Registers 6.2.5.1 TASKS_START 6.2.5.2 TASKS_STOP 6.2.5.3 EVENTS_END 6.2.5.4 EVENTS_RESOLVED 6.2.5.5 EVENTS_NOTRESOLVED 6.2.5.6 INTENSET 6.2.5.7 INTENCLR 6.2.5.8 STATUS 6.2.5.9 ENABLE 6.2.5.10 NIRK 6.2.5.11 IRKPTR 6.2.5.12 ADDRPTR 6.2.5.13 SCRATCHPTR 6.2.6 Electrical specification 6.2.6.1 AAR Electrical Specification 6.3 ACL — Access control lists 6.3.1 Registers 6.3.1.1 ACL[n].ADDR (n=0..7) 6.3.1.2 ACL[n].SIZE (n=0..7) 6.3.1.3 ACL[n].PERM (n=0..7) 6.4 CCM — AES CCM mode encryption 6.4.1 Key-steam generation 6.4.2 Encryption 6.4.3 Decryption 6.4.4 AES CCM and RADIO concurrent operation 6.4.5 Encrypting packets on-the-fly in radio transmit mode 6.4.6 Decrypting packets on-the-fly in radio receive mode 6.4.7 CCM data structure 6.4.8 EasyDMA and ERROR event 6.4.9 Registers 6.4.9.1 TASKS_KSGEN 6.4.9.2 TASKS_CRYPT 6.4.9.3 TASKS_STOP 6.4.9.4 TASKS_RATEOVERRIDE 6.4.9.5 EVENTS_ENDKSGEN 6.4.9.6 EVENTS_ENDCRYPT 6.4.9.7 EVENTS_ERROR ( Deprecated ) 6.4.9.8 SHORTS 6.4.9.9 INTENSET 6.4.9.10 INTENCLR 6.4.9.11 MICSTATUS 6.4.9.12 ENABLE 6.4.9.13 MODE 6.4.9.14 CNFPTR 6.4.9.15 INPTR 6.4.9.16 OUTPTR 6.4.9.17 SCRATCHPTR 6.4.9.18 MAXPACKETSIZE 6.4.9.19 RATEOVERRIDE 6.4.10 Electrical specification 6.4.10.1 Timing specification 6.5 COMP — Comparator 6.5.1 Differential mode 6.5.2 Single-ended mode 6.5.3 Registers 6.5.3.1 TASKS_START 6.5.3.2 TASKS_STOP 6.5.3.3 TASKS_SAMPLE 6.5.3.4 EVENTS_READY 6.5.3.5 EVENTS_DOWN 6.5.3.6 EVENTS_UP 6.5.3.7 EVENTS_CROSS 6.5.3.8 SHORTS 6.5.3.9 INTEN 6.5.3.10 INTENSET 6.5.3.11 INTENCLR 6.5.3.12 RESULT 6.5.3.13 ENABLE 6.5.3.14 PSEL 6.5.3.15 REFSEL 6.5.3.16 EXTREFSEL 6.5.3.17 TH 6.5.3.18 MODE 6.5.3.19 HYST 6.5.4 Electrical specification 6.5.4.1 COMP Electrical Specification 6.6 CRYPTOCELL — ARM TrustZone CryptoCell 310 6.6.1 Usage 6.6.2 Always-on (AO) power domain 6.6.3 Lifecycle state (LCS) 6.6.4 Cryptographic key selection 6.6.4.1 RTL key 6.6.4.2 Device root key 6.6.5 Direct memory access (DMA) 6.6.6 Standards 6.6.7 Registers 6.6.7.1 ENABLE 6.6.8 Host interface 6.6.8.1 HOST_RGF block 6.6.8.1.1 Registers 6.6.8.1.1.1 HOST_CRYPTOKEY_SEL 6.6.8.1.1.2 HOST_IOT_KPRTL_LOCK 6.6.8.1.1.3 HOST_IOT_KDR0 6.6.8.1.1.4 HOST_IOT_KDR1 6.6.8.1.1.5 HOST_IOT_KDR2 6.6.8.1.1.6 HOST_IOT_KDR3 6.6.8.1.1.7 HOST_IOT_LCS 6.7 ECB — AES electronic codebook mode encryption 6.7.1 Shared resources 6.7.2 EasyDMA 6.7.3 ECB data structure 6.7.4 Registers 6.7.4.1 TASKS_STARTECB 6.7.4.2 TASKS_STOPECB 6.7.4.3 EVENTS_ENDECB 6.7.4.4 EVENTS_ERRORECB 6.7.4.5 INTENSET 6.7.4.6 INTENCLR 6.7.4.7 ECBDATAPTR 6.7.5 Electrical specification 6.7.5.1 ECB Electrical Specification 6.8 EGU — Event generator unit 6.8.1 Registers 6.8.1.1 TASKS_TRIGGER[n] (n=0..15) 6.8.1.2 EVENTS_TRIGGERED[n] (n=0..15) 6.8.1.3 INTEN 6.8.1.4 INTENSET 6.8.1.5 INTENCLR 6.8.2 Electrical specification 6.8.2.1 EGU Electrical Specification 6.9 GPIO — General purpose input/output 6.9.1 Pin configuration 6.9.2 Registers 6.9.2.1 OUT 6.9.2.2 OUTSET 6.9.2.3 OUTCLR 6.9.2.4 IN 6.9.2.5 DIR 6.9.2.6 DIRSET 6.9.2.7 DIRCLR 6.9.2.8 LATCH 6.9.2.9 DETECTMODE 6.9.2.10 PIN_CNF[n] (n=0..31) 6.9.3 Electrical specification 6.9.3.1 GPIO Electrical Specification 6.10 GPIOTE — GPIO tasks and events 6.10.1 Pin events and tasks 6.10.2 Port event 6.10.3 Tasks and events pin configuration 6.10.4 Registers 6.10.4.1 TASKS_OUT[n] (n=0..7) 6.10.4.2 TASKS_SET[n] (n=0..7) 6.10.4.3 TASKS_CLR[n] (n=0..7) 6.10.4.4 EVENTS_IN[n] (n=0..7) 6.10.4.5 EVENTS_PORT 6.10.4.6 INTENSET 6.10.4.7 INTENCLR 6.10.4.8 CONFIG[n] (n=0..7) 6.10.5 Electrical specification 6.11 I2S — Inter-IC sound interface 6.11.1 Mode 6.11.2 Transmitting and receiving 6.11.3 Left right clock (LRCK) 6.11.4 Serial clock (SCK) 6.11.5 Master clock (MCK) 6.11.6 Width, alignment and format 6.11.7 EasyDMA 6.11.8 Module operation 6.11.9 Pin configuration 6.11.10 Registers 6.11.10.1 TASKS_START 6.11.10.2 TASKS_STOP 6.11.10.3 EVENTS_RXPTRUPD 6.11.10.4 EVENTS_STOPPED 6.11.10.5 EVENTS_TXPTRUPD 6.11.10.6 INTEN 6.11.10.7 INTENSET 6.11.10.8 INTENCLR 6.11.10.9 ENABLE 6.11.10.10 CONFIG.MODE 6.11.10.11 CONFIG.RXEN 6.11.10.12 CONFIG.TXEN 6.11.10.13 CONFIG.MCKEN 6.11.10.14 CONFIG.MCKFREQ 6.11.10.15 CONFIG.RATIO 6.11.10.16 CONFIG.SWIDTH 6.11.10.17 CONFIG.ALIGN 6.11.10.18 CONFIG.FORMAT 6.11.10.19 CONFIG.CHANNELS 6.11.10.20 RXD.PTR 6.11.10.21 TXD.PTR 6.11.10.22 RXTXD.MAXCNT 6.11.10.23 PSEL.MCK 6.11.10.24 PSEL.SCK 6.11.10.25 PSEL.LRCK 6.11.10.26 PSEL.SDIN 6.11.10.27 PSEL.SDOUT 6.11.11 Electrical specification 6.11.11.1 I2S timing specification 6.12 LPCOMP — Low power comparator 6.12.1 Shared resources 6.12.2 Pin configuration 6.12.3 Registers 6.12.3.1 TASKS_START 6.12.3.2 TASKS_STOP 6.12.3.3 TASKS_SAMPLE 6.12.3.4 EVENTS_READY 6.12.3.5 EVENTS_DOWN 6.12.3.6 EVENTS_UP 6.12.3.7 EVENTS_CROSS 6.12.3.8 SHORTS 6.12.3.9 INTENSET 6.12.3.10 INTENCLR 6.12.3.11 RESULT 6.12.3.12 ENABLE 6.12.3.13 PSEL 6.12.3.14 REFSEL 6.12.3.15 EXTREFSEL 6.12.3.16 ANADETECT 6.12.3.17 HYST 6.12.4 Electrical specification 6.12.4.1 LPCOMP Electrical Specification 6.13 MWU — Memory watch unit 6.13.1 Registers 6.13.1.1 EVENTS_REGION[n].WA (n=0..3) 6.13.1.2 EVENTS_REGION[n].RA (n=0..3) 6.13.1.3 EVENTS_PREGION[n].WA (n=0..1) 6.13.1.4 EVENTS_PREGION[n].RA (n=0..1) 6.13.1.5 INTEN 6.13.1.6 INTENSET 6.13.1.7 INTENCLR 6.13.1.8 NMIEN 6.13.1.9 NMIENSET 6.13.1.10 NMIENCLR 6.13.1.11 PERREGION[n].SUBSTATWA (n=0..1) 6.13.1.12 PERREGION[n].SUBSTATRA (n=0..1) 6.13.1.13 REGIONEN 6.13.1.14 REGIONENSET 6.13.1.15 REGIONENCLR 6.13.1.16 REGION[n].START (n=0..3) 6.13.1.17 REGION[n].END (n=0..3) 6.13.1.18 PREGION[n].START (n=0..1) 6.13.1.19 PREGION[n].END (n=0..1) 6.13.1.20 PREGION[n].SUBS (n=0..1) 6.14 NFCT — Near field communication tag 6.14.1 Overview 6.14.2 Operating states 6.14.3 Pin configuration 6.14.4 EasyDMA 6.14.5 Frame assembler 6.14.6 Frame disassembler 6.14.7 Frame timing controller 6.14.8 Collision resolution 6.14.9 Antenna interface 6.14.10 NFCT antenna recommendations 6.14.11 Battery protection 6.14.12 References 6.14.13 Registers 6.14.13.1 TASKS_ACTIVATE 6.14.13.2 TASKS_DISABLE 6.14.13.3 TASKS_SENSE 6.14.13.4 TASKS_STARTTX 6.14.13.5 TASKS_ENABLERXDATA 6.14.13.6 TASKS_GOIDLE 6.14.13.7 TASKS_GOSLEEP 6.14.13.8 EVENTS_READY 6.14.13.9 EVENTS_FIELDDETECTED 6.14.13.10 EVENTS_FIELDLOST 6.14.13.11 EVENTS_TXFRAMESTART 6.14.13.12 EVENTS_TXFRAMEEND 6.14.13.13 EVENTS_RXFRAMESTART 6.14.13.14 EVENTS_RXFRAMEEND 6.14.13.15 EVENTS_ERROR 6.14.13.16 EVENTS_RXERROR 6.14.13.17 EVENTS_ENDRX 6.14.13.18 EVENTS_ENDTX 6.14.13.19 EVENTS_AUTOCOLRESSTARTED 6.14.13.20 EVENTS_COLLISION 6.14.13.21 EVENTS_SELECTED 6.14.13.22 EVENTS_STARTED 6.14.13.23 SHORTS 6.14.13.24 INTEN 6.14.13.25 INTENSET 6.14.13.26 INTENCLR 6.14.13.27 ERRORSTATUS 6.14.13.28 FRAMESTATUS.RX 6.14.13.29 NFCTAGSTATE 6.14.13.30 SLEEPSTATE 6.14.13.31 FIELDPRESENT 6.14.13.32 FRAMEDELAYMIN 6.14.13.33 FRAMEDELAYMAX 6.14.13.34 FRAMEDELAYMODE 6.14.13.35 PACKETPTR 6.14.13.36 MAXLEN 6.14.13.37 TXD.FRAMECONFIG 6.14.13.38 TXD.AMOUNT 6.14.13.39 RXD.FRAMECONFIG 6.14.13.40 RXD.AMOUNT 6.14.13.41 NFCID1_LAST 6.14.13.42 NFCID1_2ND_LAST 6.14.13.43 NFCID1_3RD_LAST 6.14.13.44 AUTOCOLRESCONFIG 6.14.13.45 SENSRES 6.14.13.46 SELRES 6.14.14 Electrical specification 6.14.14.1 NFCT Electrical Specification 6.14.14.2 NFCT Timing Parameters 6.15 PDM — Pulse density modulation interface 6.15.1 Master clock generator 6.15.2 Module operation 6.15.3 Decimation filter 6.15.4 EasyDMA 6.15.5 Hardware example 6.15.6 Pin configuration 6.15.7 Registers 6.15.7.1 TASKS_START 6.15.7.2 TASKS_STOP 6.15.7.3 EVENTS_STARTED 6.15.7.4 EVENTS_STOPPED 6.15.7.5 EVENTS_END 6.15.7.6 INTEN 6.15.7.7 INTENSET 6.15.7.8 INTENCLR 6.15.7.9 ENABLE 6.15.7.10 PDMCLKCTRL 6.15.7.11 MODE 6.15.7.12 GAINL 6.15.7.13 GAINR 6.15.7.14 RATIO 6.15.7.15 PSEL.CLK 6.15.7.16 PSEL.DIN 6.15.7.17 SAMPLE.PTR 6.15.7.18 SAMPLE.MAXCNT 6.15.8 Electrical specification 6.15.8.1 PDM Electrical Specification 6.16 PPI — Programmable peripheral interconnect 6.16.1 Pre-programmed channels 6.16.2 Registers 6.16.2.1 TASKS_CHG[n].EN (n=0..5) 6.16.2.2 TASKS_CHG[n].DIS (n=0..5) 6.16.2.3 CHEN 6.16.2.4 CHENSET 6.16.2.5 CHENCLR 6.16.2.6 CH[n].EEP (n=0..19) 6.16.2.7 CH[n].TEP (n=0..19) 6.16.2.8 CHG[n] (n=0..5) 6.16.2.9 FORK[n].TEP (n=0..31) 6.17 PWM — Pulse width modulation 6.17.1 Wave counter 6.17.2 Decoder with EasyDMA 6.17.3 Limitations 6.17.4 Pin configuration 6.17.5 Registers 6.17.5.1 TASKS_STOP 6.17.5.2 TASKS_SEQSTART[n] (n=0..1) 6.17.5.3 TASKS_NEXTSTEP 6.17.5.4 EVENTS_STOPPED 6.17.5.5 EVENTS_SEQSTARTED[n] (n=0..1) 6.17.5.6 EVENTS_SEQEND[n] (n=0..1) 6.17.5.7 EVENTS_PWMPERIODEND 6.17.5.8 EVENTS_LOOPSDONE 6.17.5.9 SHORTS 6.17.5.10 INTEN 6.17.5.11 INTENSET 6.17.5.12 INTENCLR 6.17.5.13 ENABLE 6.17.5.14 MODE 6.17.5.15 COUNTERTOP 6.17.5.16 PRESCALER 6.17.5.17 DECODER 6.17.5.18 LOOP 6.17.5.19 SEQ[n].PTR (n=0..1) 6.17.5.20 SEQ[n].CNT (n=0..1) 6.17.5.21 SEQ[n].REFRESH (n=0..1) 6.17.5.22 SEQ[n].ENDDELAY (n=0..1) 6.17.5.23 PSEL.OUT[n] (n=0..3) 6.18 QDEC — Quadrature decoder 6.18.1 Sampling and decoding 6.18.2 LED output 6.18.3 Debounce filters 6.18.4 Accumulators 6.18.5 Output/input pins 6.18.6 Pin configuration 6.18.7 Registers 6.18.7.1 TASKS_START 6.18.7.2 TASKS_STOP 6.18.7.3 TASKS_READCLRACC 6.18.7.4 TASKS_RDCLRACC 6.18.7.5 TASKS_RDCLRDBL 6.18.7.6 EVENTS_SAMPLERDY 6.18.7.7 EVENTS_REPORTRDY 6.18.7.8 EVENTS_ACCOF 6.18.7.9 EVENTS_DBLRDY 6.18.7.10 EVENTS_STOPPED 6.18.7.11 SHORTS 6.18.7.12 INTENSET 6.18.7.13 INTENCLR 6.18.7.14 ENABLE 6.18.7.15 LEDPOL 6.18.7.16 SAMPLEPER 6.18.7.17 SAMPLE 6.18.7.18 REPORTPER 6.18.7.19 ACC 6.18.7.20 ACCREAD 6.18.7.21 PSEL.LED 6.18.7.22 PSEL.A 6.18.7.23 PSEL.B 6.18.7.24 DBFEN 6.18.7.25 LEDPRE 6.18.7.26 ACCDBL 6.18.7.27 ACCDBLREAD 6.18.8 Electrical specification 6.18.8.1 QDEC Electrical Specification 6.19 QSPI — Quad serial peripheral interface 6.19.1 Configuring peripheral 6.19.2 Write operation 6.19.3 Read operation 6.19.4 Erase operation 6.19.5 Execute in place 6.19.6 Sending custom instructions 6.19.6.1 Long frame mode 6.19.7 Deep power-down mode 6.19.8 Instruction set 6.19.9 Interface description 6.19.10 Registers 6.19.10.1 TASKS_ACTIVATE 6.19.10.2 TASKS_READSTART 6.19.10.3 TASKS_WRITESTART 6.19.10.4 TASKS_ERASESTART 6.19.10.5 TASKS_DEACTIVATE 6.19.10.6 EVENTS_READY 6.19.10.7 INTEN 6.19.10.8 INTENSET 6.19.10.9 INTENCLR 6.19.10.10 ENABLE 6.19.10.11 READ.SRC 6.19.10.12 READ.DST 6.19.10.13 READ.CNT 6.19.10.14 WRITE.DST 6.19.10.15 WRITE.SRC 6.19.10.16 WRITE.CNT 6.19.10.17 ERASE.PTR 6.19.10.18 ERASE.LEN 6.19.10.19 PSEL.SCK 6.19.10.20 PSEL.CSN 6.19.10.21 PSEL.IO0 6.19.10.22 PSEL.IO1 6.19.10.23 PSEL.IO2 6.19.10.24 PSEL.IO3 6.19.10.25 XIPOFFSET 6.19.10.26 IFCONFIG0 6.19.10.27 IFCONFIG1 6.19.10.28 STATUS 6.19.10.29 DPMDUR 6.19.10.30 ADDRCONF 6.19.10.31 CINSTRCONF 6.19.10.32 CINSTRDAT0 6.19.10.33 CINSTRDAT1 6.19.10.34 IFTIMING 6.19.11 Electrical specification 6.19.11.1 Timing specification 6.20 RADIO — 2.4 GHz radio 6.20.1 Packet configuration 6.20.2 Address configuration 6.20.3 Data whitening 6.20.4 CRC 6.20.5 Radio states 6.20.6 Transmit sequence 6.20.7 Receive sequence 6.20.8 Received signal strength indicator (RSSI) 6.20.9 Interframe spacing 6.20.10 Device address match 6.20.11 Bit counter 6.20.12 IEEE 802.15.4 operation 6.20.12.1 Packet structure 6.20.12.2 Operating frequencies 6.20.12.3 Energy detection (ED) 6.20.12.4 Clear channel assessment (CCA) 6.20.12.5 Cyclic redundancy check (CRC) 6.20.12.6 Transmit sequence 6.20.12.7 Receive sequence 6.20.12.8 Interframe spacing (IFS) 6.20.13 EasyDMA 6.20.14 Registers 6.20.14.1 TASKS_TXEN 6.20.14.2 TASKS_RXEN 6.20.14.3 TASKS_START 6.20.14.4 TASKS_STOP 6.20.14.5 TASKS_DISABLE 6.20.14.6 TASKS_RSSISTART 6.20.14.7 TASKS_RSSISTOP 6.20.14.8 TASKS_BCSTART 6.20.14.9 TASKS_BCSTOP 6.20.14.10 TASKS_EDSTART 6.20.14.11 TASKS_EDSTOP 6.20.14.12 TASKS_CCASTART 6.20.14.13 TASKS_CCASTOP 6.20.14.14 EVENTS_READY 6.20.14.15 EVENTS_ADDRESS 6.20.14.16 EVENTS_PAYLOAD 6.20.14.17 EVENTS_END 6.20.14.18 EVENTS_DISABLED 6.20.14.19 EVENTS_DEVMATCH 6.20.14.20 EVENTS_DEVMISS 6.20.14.21 EVENTS_RSSIEND 6.20.14.22 EVENTS_BCMATCH 6.20.14.23 EVENTS_CRCOK 6.20.14.24 EVENTS_CRCERROR 6.20.14.25 EVENTS_FRAMESTART 6.20.14.26 EVENTS_EDEND 6.20.14.27 EVENTS_EDSTOPPED 6.20.14.28 EVENTS_CCAIDLE 6.20.14.29 EVENTS_CCABUSY 6.20.14.30 EVENTS_CCASTOPPED 6.20.14.31 EVENTS_RATEBOOST 6.20.14.32 EVENTS_TXREADY 6.20.14.33 EVENTS_RXREADY 6.20.14.34 EVENTS_MHRMATCH 6.20.14.35 EVENTS_PHYEND 6.20.14.36 SHORTS 6.20.14.37 INTENSET 6.20.14.38 INTENCLR 6.20.14.39 CRCSTATUS 6.20.14.40 RXMATCH 6.20.14.41 RXCRC 6.20.14.42 DAI 6.20.14.43 PDUSTAT 6.20.14.44 PACKETPTR 6.20.14.45 FREQUENCY 6.20.14.46 TXPOWER 6.20.14.47 MODE 6.20.14.48 PCNF0 6.20.14.49 PCNF1 6.20.14.50 BASE0 6.20.14.51 BASE1 6.20.14.52 PREFIX0 6.20.14.53 PREFIX1 6.20.14.54 TXADDRESS 6.20.14.55 RXADDRESSES 6.20.14.56 CRCCNF 6.20.14.57 CRCPOLY 6.20.14.58 CRCINIT 6.20.14.59 TIFS 6.20.14.60 RSSISAMPLE 6.20.14.61 STATE 6.20.14.62 DATAWHITEIV 6.20.14.63 BCC 6.20.14.64 DAB[n] (n=0..7) 6.20.14.65 DAP[n] (n=0..7) 6.20.14.66 DACNF 6.20.14.67 MHRMATCHCONF 6.20.14.68 MHRMATCHMAS 6.20.14.69 MODECNF0 6.20.14.70 SFD 6.20.14.71 EDCNT 6.20.14.72 EDSAMPLE 6.20.14.73 CCACTRL 6.20.14.74 POWER 6.20.15 Electrical specification 6.20.15.1 General radio characteristics 6.20.15.2 Radio current consumption (transmitter) 6.20.15.3 Radio current consumption (Receiver) 6.20.15.4 Transmitter specification 6.20.15.5 Receiver operation 6.20.15.6 RX selectivity 6.20.15.7 RX intermodulation 6.20.15.8 Radio timing 6.20.15.9 Received signal strength indicator (RSSI) specifications 6.20.15.10 Jitter 6.20.15.11 IEEE 802.15.4 energy detection constants 6.21 RNG — Random number generator 6.21.1 Bias correction 6.21.2 Speed 6.21.3 Registers 6.21.3.1 TASKS_START 6.21.3.2 TASKS_STOP 6.21.3.3 EVENTS_VALRDY 6.21.3.4 SHORTS 6.21.3.5 INTENSET 6.21.3.6 INTENCLR 6.21.3.7 CONFIG 6.21.3.8 VALUE 6.21.4 Electrical specification 6.21.4.1 RNG Electrical Specification 6.22 RTC — Real-time counter 6.22.1 Clock source 6.22.2 Resolution versus overflow and the PRESCALER 6.22.3 COUNTER register 6.22.4 Overflow features 6.22.5 TICK event 6.22.6 Event control feature 6.22.7 Compare feature 6.22.8 TASK and EVENT jitter/delay 6.22.9 Reading the COUNTER register 6.22.10 Registers 6.22.10.1 TASKS_START 6.22.10.2 TASKS_STOP 6.22.10.3 TASKS_CLEAR 6.22.10.4 TASKS_TRIGOVRFLW 6.22.10.5 EVENTS_TICK 6.22.10.6 EVENTS_OVRFLW 6.22.10.7 EVENTS_COMPARE[n] (n=0..3) 6.22.10.8 INTENSET 6.22.10.9 INTENCLR 6.22.10.10 EVTEN 6.22.10.11 EVTENSET 6.22.10.12 EVTENCLR 6.22.10.13 COUNTER 6.22.10.14 PRESCALER 6.22.10.15 CC[n] (n=0..3) 6.22.11 Electrical specification 6.23 SAADC — Successive approximation analog-to-digital converter 6.23.1 Input configuration 6.23.1.1 Acquisition time 6.23.1.2 Internal resistor string (resistor ladder) 6.23.2 Reference voltage and gain settings 6.23.3 Digital output 6.23.4 EasyDMA 6.23.5 Continuous sampling 6.23.6 Oversampling 6.23.7 Event monitoring using limits 6.23.8 Calibration 6.23.9 Registers 6.23.9.1 TASKS_START 6.23.9.2 TASKS_SAMPLE 6.23.9.3 TASKS_STOP 6.23.9.4 TASKS_CALIBRATEOFFSET 6.23.9.5 EVENTS_STARTED 6.23.9.6 EVENTS_END 6.23.9.7 EVENTS_DONE 6.23.9.8 EVENTS_RESULTDONE 6.23.9.9 EVENTS_CALIBRATEDONE 6.23.9.10 EVENTS_STOPPED 6.23.9.11 EVENTS_CH[n].LIMITH (n=0..7) 6.23.9.12 EVENTS_CH[n].LIMITL (n=0..7) 6.23.9.13 INTEN 6.23.9.14 INTENSET 6.23.9.15 INTENCLR 6.23.9.16 STATUS 6.23.9.17 ENABLE 6.23.9.18 CH[n].PSELP (n=0..7) 6.23.9.19 CH[n].PSELN (n=0..7) 6.23.9.20 CH[n].CONFIG (n=0..7) 6.23.9.21 CH[n].LIMIT (n=0..7) 6.23.9.22 RESOLUTION 6.23.9.23 OVERSAMPLE 6.23.9.24 SAMPLERATE 6.23.9.25 RESULT.PTR 6.23.9.26 RESULT.MAXCNT 6.23.9.27 RESULT.AMOUNT 6.23.10 Electrical specification 6.23.10.1 SAADC electrical specification 6.24 SPI — Serial peripheral interface master 6.24.1 Functional description 6.24.1.1 SPI master mode pin configuration 6.24.1.2 Shared resources 6.24.1.3 SPI master transaction sequence 6.24.2 Registers 6.24.2.1 EVENTS_READY 6.24.2.2 INTENSET 6.24.2.3 INTENCLR 6.24.2.4 ENABLE 6.24.2.5 PSEL.SCK 6.24.2.6 PSEL.MOSI 6.24.2.7 PSEL.MISO 6.24.2.8 RXD 6.24.2.9 TXD 6.24.2.10 FREQUENCY 6.24.2.11 CONFIG 6.24.3 Electrical specification 6.24.3.1 SPI master interface electrical specifications 6.24.3.2 Serial Peripheral Interface (SPI) Master timing specifications 6.25 SPIM — Serial peripheral interface master with EasyDMA 6.25.1 SPI master transaction sequence 6.25.2 D/CX functionality 6.25.3 Pin configuration 6.25.4 EasyDMA 6.25.5 Low power 6.25.6 Registers 6.25.6.1 TASKS_START 6.25.6.2 TASKS_STOP 6.25.6.3 TASKS_SUSPEND 6.25.6.4 TASKS_RESUME 6.25.6.5 EVENTS_STOPPED 6.25.6.6 EVENTS_ENDRX 6.25.6.7 EVENTS_END 6.25.6.8 EVENTS_ENDTX 6.25.6.9 EVENTS_STARTED 6.25.6.10 SHORTS 6.25.6.11 INTENSET 6.25.6.12 INTENCLR 6.25.6.13 STALLSTAT 6.25.6.14 ENABLE 6.25.6.15 PSEL.SCK 6.25.6.16 PSEL.MOSI 6.25.6.17 PSEL.MISO 6.25.6.18 PSEL.CSN 6.25.6.19 FREQUENCY 6.25.6.20 RXD.PTR 6.25.6.21 RXD.MAXCNT 6.25.6.22 RXD.AMOUNT 6.25.6.23 RXD.LIST 6.25.6.24 TXD.PTR 6.25.6.25 TXD.MAXCNT 6.25.6.26 TXD.AMOUNT 6.25.6.27 TXD.LIST 6.25.6.28 CONFIG 6.25.6.29 IFTIMING.RXDELAY 6.25.6.30 IFTIMING.CSNDUR 6.25.6.31 CSNPOL 6.25.6.32 PSELDCX 6.25.6.33 DCXCNT 6.25.6.34 ORC 6.25.7 Electrical specification 6.25.7.1 Timing specifications 6.26 SPIS — Serial peripheral interface slave with EasyDMA 6.26.1 Shared resources 6.26.2 EasyDMA 6.26.3 SPI slave operation 6.26.4 Pin configuration 6.26.5 Registers 6.26.5.1 TASKS_ACQUIRE 6.26.5.2 TASKS_RELEASE 6.26.5.3 EVENTS_END 6.26.5.4 EVENTS_ENDRX 6.26.5.5 EVENTS_ACQUIRED 6.26.5.6 SHORTS 6.26.5.7 INTENSET 6.26.5.8 INTENCLR 6.26.5.9 SEMSTAT 6.26.5.10 STATUS 6.26.5.11 ENABLE 6.26.5.12 PSEL.SCK 6.26.5.13 PSEL.MISO 6.26.5.14 PSEL.MOSI 6.26.5.15 PSEL.CSN 6.26.5.16 PSELSCK ( Deprecated ) 6.26.5.17 PSELMISO ( Deprecated ) 6.26.5.18 PSELMOSI ( Deprecated ) 6.26.5.19 PSELCSN ( Deprecated ) 6.26.5.20 RXDPTR ( Deprecated ) 6.26.5.21 MAXRX ( Deprecated ) 6.26.5.22 AMOUNTRX ( Deprecated ) 6.26.5.23 RXD.PTR 6.26.5.24 RXD.MAXCNT 6.26.5.25 RXD.AMOUNT 6.26.5.26 RXD.LIST 6.26.5.27 TXDPTR ( Deprecated ) 6.26.5.28 MAXTX ( Deprecated ) 6.26.5.29 AMOUNTTX ( Deprecated ) 6.26.5.30 TXD.PTR 6.26.5.31 TXD.MAXCNT 6.26.5.32 TXD.AMOUNT 6.26.5.33 TXD.LIST 6.26.5.34 CONFIG 6.26.5.35 DEF 6.26.5.36 ORC 6.26.6 Electrical specification 6.26.6.1 SPIS slave interface electrical specifications 6.26.6.2 Serial Peripheral Interface Slave (SPIS) timing specifications 6.27 SWI — Software interrupts 6.27.1 Registers 6.28 TEMP — Temperature sensor 6.28.1 Registers 6.28.1.1 TASKS_START 6.28.1.2 TASKS_STOP 6.28.1.3 EVENTS_DATARDY 6.28.1.4 INTENSET 6.28.1.5 INTENCLR 6.28.1.6 TEMP 6.28.1.7 A0 6.28.1.8 A1 6.28.1.9 A2 6.28.1.10 A3 6.28.1.11 A4 6.28.1.12 A5 6.28.1.13 B0 6.28.1.14 B1 6.28.1.15 B2 6.28.1.16 B3 6.28.1.17 B4 6.28.1.18 B5 6.28.1.19 T0 6.28.1.20 T1 6.28.1.21 T2 6.28.1.22 T3 6.28.1.23 T4 6.28.2 Electrical specification 6.28.2.1 Temperature Sensor Electrical Specification 6.29 TWI — I2C compatible two-wire interface 6.29.1 Functional description 6.29.2 Master mode pin configuration 6.29.3 Shared resources 6.29.4 Master write sequence 6.29.5 Master read sequence 6.29.6 Master repeated start sequence 6.29.7 Low power 6.29.8 Registers 6.29.8.1 TASKS_STARTRX 6.29.8.2 TASKS_STARTTX 6.29.8.3 TASKS_STOP 6.29.8.4 TASKS_SUSPEND 6.29.8.5 TASKS_RESUME 6.29.8.6 EVENTS_STOPPED 6.29.8.7 EVENTS_RXDREADY 6.29.8.8 EVENTS_TXDSENT 6.29.8.9 EVENTS_ERROR 6.29.8.10 EVENTS_BB 6.29.8.11 EVENTS_SUSPENDED 6.29.8.12 SHORTS 6.29.8.13 INTENSET 6.29.8.14 INTENCLR 6.29.8.15 ERRORSRC 6.29.8.16 ENABLE 6.29.8.17 PSEL.SCL 6.29.8.18 PSEL.SDA 6.29.8.19 RXD 6.29.8.20 TXD 6.29.8.21 FREQUENCY 6.29.8.22 ADDRESS 6.29.9 Electrical specification 6.29.9.1 TWI interface electrical specifications 6.29.9.2 Two Wire Interface (TWI) timing specifications 6.30 TIMER — Timer/counter 6.30.1 Capture 6.30.2 Compare 6.30.3 Task delays 6.30.4 Task priority 6.30.5 Registers 6.30.5.1 TASKS_START 6.30.5.2 TASKS_STOP 6.30.5.3 TASKS_COUNT 6.30.5.4 TASKS_CLEAR 6.30.5.5 TASKS_SHUTDOWN ( Deprecated ) 6.30.5.6 TASKS_CAPTURE[n] (n=0..5) 6.30.5.7 EVENTS_COMPARE[n] (n=0..5) 6.30.5.8 SHORTS 6.30.5.9 INTENSET 6.30.5.10 INTENCLR 6.30.5.11 MODE 6.30.5.12 BITMODE 6.30.5.13 PRESCALER 6.30.5.14 CC[n] (n=0..5) 6.31 TWIM — I2C compatible two-wire interface master with EasyDMA 6.31.1 EasyDMA 6.31.2 Master write sequence 6.31.3 Master read sequence 6.31.4 Master repeated start sequence 6.31.5 Low power 6.31.6 Master mode pin configuration 6.31.7 Registers 6.31.7.1 TASKS_STARTRX 6.31.7.2 TASKS_STARTTX 6.31.7.3 TASKS_STOP 6.31.7.4 TASKS_SUSPEND 6.31.7.5 TASKS_RESUME 6.31.7.6 EVENTS_STOPPED 6.31.7.7 EVENTS_ERROR 6.31.7.8 EVENTS_SUSPENDED 6.31.7.9 EVENTS_RXSTARTED 6.31.7.10 EVENTS_TXSTARTED 6.31.7.11 EVENTS_LASTRX 6.31.7.12 EVENTS_LASTTX 6.31.7.13 SHORTS 6.31.7.14 INTEN 6.31.7.15 INTENSET 6.31.7.16 INTENCLR 6.31.7.17 ERRORSRC 6.31.7.18 ENABLE 6.31.7.19 PSEL.SCL 6.31.7.20 PSEL.SDA 6.31.7.21 FREQUENCY 6.31.7.22 RXD.PTR 6.31.7.23 RXD.MAXCNT 6.31.7.24 RXD.AMOUNT 6.31.7.25 RXD.LIST 6.31.7.26 TXD.PTR 6.31.7.27 TXD.MAXCNT 6.31.7.28 TXD.AMOUNT 6.31.7.29 TXD.LIST 6.31.7.30 ADDRESS 6.31.8 Electrical specification 6.31.8.1 TWIM interface electrical specifications 6.31.8.2 Two Wire Interface Master (TWIM) timing specifications 6.31.9 Pullup resistor 6.32 TWIS — I2C compatible two-wire interface slave with EasyDMA 6.32.1 EasyDMA 6.32.2 TWI slave responding to a read command 6.32.3 TWI slave responding to a write command 6.32.4 Master repeated start sequence 6.32.5 Terminating an ongoing TWI transaction 6.32.6 Low power 6.32.7 Slave mode pin configuration 6.32.8 Registers 6.32.8.1 TASKS_STOP 6.32.8.2 TASKS_SUSPEND 6.32.8.3 TASKS_RESUME 6.32.8.4 TASKS_PREPARERX 6.32.8.5 TASKS_PREPARETX 6.32.8.6 EVENTS_STOPPED 6.32.8.7 EVENTS_ERROR 6.32.8.8 EVENTS_RXSTARTED 6.32.8.9 EVENTS_TXSTARTED 6.32.8.10 EVENTS_WRITE 6.32.8.11 EVENTS_READ 6.32.8.12 SHORTS 6.32.8.13 INTEN 6.32.8.14 INTENSET 6.32.8.15 INTENCLR 6.32.8.16 ERRORSRC 6.32.8.17 MATCH 6.32.8.18 ENABLE 6.32.8.19 PSEL.SCL 6.32.8.20 PSEL.SDA 6.32.8.21 RXD.PTR 6.32.8.22 RXD.MAXCNT 6.32.8.23 RXD.AMOUNT 6.32.8.24 RXD.LIST 6.32.8.25 TXD.PTR 6.32.8.26 TXD.MAXCNT 6.32.8.27 TXD.AMOUNT 6.32.8.28 TXD.LIST 6.32.8.29 ADDRESS[n] (n=0..1) 6.32.8.30 CONFIG 6.32.8.31 ORC 6.32.9 Electrical specification 6.32.9.1 TWIS slave timing specifications 6.33 UART — Universal asynchronous receiver/transmitter 6.33.1 Functional description 6.33.2 Pin configuration 6.33.3 Shared resources 6.33.4 Transmission 6.33.5 Reception 6.33.6 Suspending the UART 6.33.7 Error conditions 6.33.8 Using the UART without flow control 6.33.9 Parity and stop bit configuration 6.33.10 Registers 6.33.10.1 TASKS_STARTRX 6.33.10.2 TASKS_STOPRX 6.33.10.3 TASKS_STARTTX 6.33.10.4 TASKS_STOPTX 6.33.10.5 TASKS_SUSPEND 6.33.10.6 EVENTS_CTS 6.33.10.7 EVENTS_NCTS 6.33.10.8 EVENTS_RXDRDY 6.33.10.9 EVENTS_TXDRDY 6.33.10.10 EVENTS_ERROR 6.33.10.11 EVENTS_RXTO 6.33.10.12 SHORTS 6.33.10.13 INTENSET 6.33.10.14 INTENCLR 6.33.10.15 ERRORSRC 6.33.10.16 ENABLE 6.33.10.17 PSEL.RTS 6.33.10.18 PSEL.TXD 6.33.10.19 PSEL.CTS 6.33.10.20 PSEL.RXD 6.33.10.21 RXD 6.33.10.22 TXD 6.33.10.23 BAUDRATE 6.33.10.24 CONFIG 6.33.11 Electrical specification 6.33.11.1 UART electrical specification 6.34 UARTE — Universal asynchronous receiver/transmitter with EasyDMA 6.34.1 EasyDMA 6.34.2 Transmission 6.34.3 Reception 6.34.4 Error conditions 6.34.5 Using the UARTE without flow control 6.34.6 Parity and stop bit configuration 6.34.7 Low power 6.34.8 Pin configuration 6.34.9 Registers 6.34.9.1 TASKS_STARTRX 6.34.9.2 TASKS_STOPRX 6.34.9.3 TASKS_STARTTX 6.34.9.4 TASKS_STOPTX 6.34.9.5 TASKS_FLUSHRX 6.34.9.6 EVENTS_CTS 6.34.9.7 EVENTS_NCTS 6.34.9.8 EVENTS_RXDRDY 6.34.9.9 EVENTS_ENDRX 6.34.9.10 EVENTS_TXDRDY 6.34.9.11 EVENTS_ENDTX 6.34.9.12 EVENTS_ERROR 6.34.9.13 EVENTS_RXTO 6.34.9.14 EVENTS_RXSTARTED 6.34.9.15 EVENTS_TXSTARTED 6.34.9.16 EVENTS_TXSTOPPED 6.34.9.17 SHORTS 6.34.9.18 INTEN 6.34.9.19 INTENSET 6.34.9.20 INTENCLR 6.34.9.21 ERRORSRC 6.34.9.22 ENABLE 6.34.9.23 PSEL.RTS 6.34.9.24 PSEL.TXD 6.34.9.25 PSEL.CTS 6.34.9.26 PSEL.RXD 6.34.9.27 BAUDRATE 6.34.9.28 RXD.PTR 6.34.9.29 RXD.MAXCNT 6.34.9.30 RXD.AMOUNT 6.34.9.31 TXD.PTR 6.34.9.32 TXD.MAXCNT 6.34.9.33 TXD.AMOUNT 6.34.9.34 CONFIG 6.34.10 Electrical specification 6.34.10.1 UARTE electrical specification 6.35 USBD — Universal serial bus device 6.35.1 USB device states 6.35.2 USB terminology 6.35.3 USB pins 6.35.4 USBD power-up sequence 6.35.5 USB pull-up 6.35.6 USB reset 6.35.7 USB suspend and resume 6.35.7.1 Entering suspend 6.35.7.2 Host-initiated resume 6.35.7.3 Device-initiated remote wake-up 6.35.8 EasyDMA 6.35.9 Control transfers 6.35.9.1 Control read transfer 6.35.9.2 Control write transfer 6.35.10 Bulk and interrupt transactions 6.35.10.1 Bulk and interrupt IN transaction 6.35.10.2 Bulk and interrupt OUT transaction 6.35.11 Isochronous transactions 6.35.11.1 Isochronous IN transaction 6.35.11.2 Isochronous OUT transaction 6.35.12 USB register access limitations 6.35.13 Registers 6.35.13.1 TASKS_STARTEPIN[n] (n=0..7) 6.35.13.2 TASKS_STARTISOIN 6.35.13.3 TASKS_STARTEPOUT[n] (n=0..7) 6.35.13.4 TASKS_STARTISOOUT 6.35.13.5 TASKS_EP0RCVOUT 6.35.13.6 TASKS_EP0STATUS 6.35.13.7 TASKS_EP0STALL 6.35.13.8 TASKS_DPDMDRIVE 6.35.13.9 TASKS_DPDMNODRIVE 6.35.13.10 EVENTS_USBRESET 6.35.13.11 EVENTS_STARTED 6.35.13.12 EVENTS_ENDEPIN[n] (n=0..7) 6.35.13.13 EVENTS_EP0DATADONE 6.35.13.14 EVENTS_ENDISOIN 6.35.13.15 EVENTS_ENDEPOUT[n] (n=0..7) 6.35.13.16 EVENTS_ENDISOOUT 6.35.13.17 EVENTS_SOF 6.35.13.18 EVENTS_USBEVENT 6.35.13.19 EVENTS_EP0SETUP 6.35.13.20 EVENTS_EPDATA 6.35.13.21 SHORTS 6.35.13.22 INTEN 6.35.13.23 INTENSET 6.35.13.24 INTENCLR 6.35.13.25 EVENTCAUSE 6.35.13.26 HALTED.EPIN[n] (n=0..7) 6.35.13.27 HALTED.EPOUT[n] (n=0..7) 6.35.13.28 EPSTATUS 6.35.13.29 EPDATASTATUS 6.35.13.30 USBADDR 6.35.13.31 BMREQUESTTYPE 6.35.13.32 BREQUEST 6.35.13.33 WVALUEL 6.35.13.34 WVALUEH 6.35.13.35 WINDEXL 6.35.13.36 WINDEXH 6.35.13.37 WLENGTHL 6.35.13.38 WLENGTHH 6.35.13.39 SIZE.EPOUT[n] (n=0..7) 6.35.13.40 SIZE.ISOOUT 6.35.13.41 ENABLE 6.35.13.42 USBPULLUP 6.35.13.43 DPDMVALUE 6.35.13.44 DTOGGLE 6.35.13.45 EPINEN 6.35.13.46 EPOUTEN 6.35.13.47 EPSTALL 6.35.13.48 ISOSPLIT 6.35.13.49 FRAMECNTR 6.35.13.50 LOWPOWER 6.35.13.51 ISOINCONFIG 6.35.13.52 EPIN[n].PTR (n=0..7) 6.35.13.53 EPIN[n].MAXCNT (n=0..7) 6.35.13.54 EPIN[n].AMOUNT (n=0..7) 6.35.13.55 ISOIN.PTR 6.35.13.56 ISOIN.MAXCNT 6.35.13.57 ISOIN.AMOUNT 6.35.13.58 EPOUT[n].PTR (n=0..7) 6.35.13.59 EPOUT[n].MAXCNT (n=0..7) 6.35.13.60 EPOUT[n].AMOUNT (n=0..7) 6.35.13.61 ISOOUT.PTR 6.35.13.62 ISOOUT.MAXCNT 6.35.13.63 ISOOUT.AMOUNT 6.35.14 Electrical specification 6.35.14.1 USB Electrical Specification 6.36 WDT — Watchdog timer 6.36.1 Reload criteria 6.36.2 Temporarily pausing the watchdog 6.36.3 Watchdog reset 6.36.4 Registers 6.36.4.1 TASKS_START 6.36.4.2 EVENTS_TIMEOUT 6.36.4.3 INTENSET 6.36.4.4 INTENCLR 6.36.4.5 RUNSTATUS 6.36.4.6 REQSTATUS 6.36.4.7 CRV 6.36.4.8 RREN 6.36.4.9 CONFIG 6.36.4.10 RR[n] (n=0..7) 6.36.5 Electrical specification 6.36.5.1 Watchdog Timer Electrical Specification Hardware and layout 7.1 Pin assignments 7.1.1 aQFN73 ball assignments 7.1.2 WLCSP ball assignments 7.2 Mechanical specifications 7.2.1 aQFN73 7 x 7 mm package 7.2.2 WLCSP 3.544 x 3.607 mm package 7.3 Reference circuitry 7.3.1 Circuit configuration no. 1 7.3.2 Circuit configuration no. 2 7.3.3 Circuit configuration no. 3 7.3.4 Circuit configuration no. 4 7.3.5 Circuit configuration no. 5 7.3.6 Circuit configuration no. 6 7.3.7 Circuit configuration no. 1 for CKAA WLCSP 7.3.8 Circuit configuration no. 2 for CKAA WLCSP 7.3.9 Circuit configuration no. 3 for CKAA WLCSP 7.3.10 Circuit configuration no. 4 for CKAA WLCSP 7.3.11 Circuit configuration no. 5 for CKAA WLCSP 7.3.12 Circuit configuration no. 6 for CKAA WLCSP 7.3.13 PCB guidelines 7.3.14 PCB layout example Recommended operating conditions Absolute maximum ratings Ordering information 10.1 Package marking 10.2 Box labels 10.3 Order code 10.4 Code ranges and values 10.5 Product options Legal notices 11.1 Liability disclaimer 11.2 Life support applications 11.3 RoHS and REACH statement 11.4 Trademarks 11.5 Copyright notice