NORA-B1 series - Data sheet

UBX-20027119 - R10

Contents

Page 3 of 46

C1 – Public

Contents

Document information ......................................................................................................................2

Contents ..............................................................................................................................................3

1 Functional description ................................................................................................................6

1.1 Overview ................................................................................................................................................................ 6

1.2 Applications ......................................................................................................................................................... 6

1.3 Block diagram...................................................................................................................................................... 7

1.4 Product description ........................................................................................................................................... 8

1.5 Hardware options ............................................................................................................................................... 9

1.6 Software options..............................................................................................................................................10

1.6.1 Open CPU ...................................................................................................................................................10

1.7 Bluetooth device address...............................................................................................................................10

2 Interfaces ................................................................................................................................... 11

2.1 Power management.........................................................................................................................................11

2.1.1 DC-DC converters....................................................................................................................................11

2.1.2 High voltage and battery operation ...................................................................................................11

2.1.3 Normal voltage operation......................................................................................................................11

2.1.4 Digital I/O interfaces reference voltage............................................................................................11

2.2 System clocks....................................................................................................................................................11

2.2.1 High-frequency clock..............................................................................................................................11

2.2.2 Low-frequency clock...............................................................................................................................12

2.3 RF antenna interfaces ....................................................................................................................................12

2.3.1 2.4 GHz radio (ANT).................................................................................................................................12

2.3.2 Near Field Communication (NFC).......................................................................................................12

2.3.3 Location services (AoA/AoD)................................................................................................................13

2.4 System functions.............................................................................................................................................13

2.4.1 Power modes.............................................................................................................................................13

2.4.2 Module reset .............................................................................................................................................14

2.4.3 CPU and memory .....................................................................................................................................14

2.4.4 Direct Memory Access ...........................................................................................................................15

2.4.5 Distributed Programmable Peripheral Interconnect (DPPI) .......................................................15

2.4.6 Real-Time Counter (RTC) ......................................................................................................................15

2.5 Serial peripherals..............................................................................................................................................15

2.5.1 Universal Asynchronous Receiver/Transmitter (UART)..............................................................16

2.5.2 Serial Peripheral Interface (SPI) ..........................................................................................................16

2.5.3 High-Speed Serial Peripheral Interface.............................................................................................17

2.5.4 Quad Serial Peripheral Interface (QSPI) ............................................................................................17

2.5.5 Inter-Integrated Circuit Interface (I2C) .............................................................................................17

2.5.6 Inter-IC Sound interface (I2S) ..............................................................................................................17

2.5.7 USB 2.0 interface.....................................................................................................................................18

2.6 GPIO ......................................................................................................................................................................18