User's Manual

Table of Contents
1. Feature List ................................1
2. Ordering Information ............................2
3. System Overview ..............................3
3.1 Introduction...............................3
3.2 Radio.................................3
3.2.1 Antenna Interface ............................3
3.2.2 Wake on Radio .............................4
3.2.3 RFSENSE ..............................4
3.2.4 Packet and State Trace ..........................4
3.2.5 Data Buffering .............................4
3.2.6 Radio Controller (RAC) ..........................4
3.2.7 Random Number Generator ........................4
3.3 Power ................................5
3.3.1 Energy Management Unit (EMU) .......................5
3.3.2 DC-DC Converter ............................5
3.4 General Purpose Input/Output (GPIO)......................5
3.5 Clocking ................................5
3.5.1 Clock Management Unit (CMU) .......................5
3.5.2 Internal Oscillators............................5
3.6 Counters/Timers and PWM .........................6
3.6.1 Timer/Counter (TIMER) ..........................6
3.6.2 Real Time Counter and Calendar (RTCC) ....................6
3.6.3 Low Energy Timer (LETIMER)........................6
3.6.4 Ultra Low Power Wake-up Timer (CRYOTIMER) .................6
3.6.5 Pulse Counter (PCNT) ..........................6
3.6.6 Watchdog Timer (WDOG) .........................6
3.7 Communications and Other Digital Peripherals ...................6
3.7.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART) ..........6
3.7.2 Low Energy Universal Asynchronous Receiver/Transmitter (LEUART) ..........7
3.7.3 Inter-Integrated Circuit Interface (I
2
C) .....................7
3.7.4 Peripheral Reflex System (PRS) .......................7
3.8 Security Features.............................7
3.8.1 GPCRC (General Purpose Cyclic Redundancy Check) ...............7
3.8.2 Crypto Accelerator (CRYPTO)........................7
3.9 Analog ................................7
3.9.1 Analog Port (APORT) ..........................7
3.9.2 Analog Comparator (ACMP) ........................7
3.9.3 Analog to Digital Converter (ADC) ......................8
3.9.4 Digital to Analog Current Converter (IDAC) ...................8
3.10 Reset Management Unit (RMU) .......................8
3.11 Core and Memory ............................8
3.11.1 Processor Core ............................8
3.11.2 Memory System Controller (MSC) ......................8
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