BLUENRG-1 datasheet(2/173 Pages) STMICROELECTRONICS

2 / 173 page

Contents

BlueNRG-1

2/173

DocID028866 Rev 1

Contents

Description..................................................................................... 11

BlueNRG-1 Bluetooth low energy stack ...................................... 12

Functional details .......................................................................... 14

3.1

Core ................................................................................................ 14

3.2

Interrupts ......................................................................................... 14

3.3

Memories ........................................................................................ 16

3.4

Power management ........................................................................ 16

3.4.1

States description ............................................................................. 16

3.4.2

Power saving strategy ...................................................................... 17

3.4.3

System controller registers ............................................................... 18

3.5

Clocks and reset management........................................................ 20

3.5.1

Reset management .......................................................................... 21

3.5.2

Reset and wakeup reason decoding ................................................ 22

3.5.3

Switching to external clock ............................................................... 22

3.5.4

Clock and reset registers.................................................................. 23

3.6

ADC ................................................................................................ 27

3.6.1

Introduction ....................................................................................... 27

3.6.2

Functional overview.......................................................................... 27

3.6.3

ADC registers ................................................................................... 30

3.7

DMA ................................................................................................ 34

3.7.1

Introduction ....................................................................................... 34

3.7.2

Functional overview.......................................................................... 34

3.7.3

DMA registers ................................................................................... 41

3.8

SPI .................................................................................................. 49

3.8.1

Introduction ....................................................................................... 49

3.8.2

Functional overview.......................................................................... 50

3.8.3

SPI registers ..................................................................................... 54

3.9

UART .............................................................................................. 61

3.9.1

Introduction ....................................................................................... 61

3.9.2

Functional description....................................................................... 61

3.9.3

UART registers ................................................................................. 69

3.10

I2C .................................................................................................. 82

3.10.1

Introduction ....................................................................................... 82

3.10.2

Functional description....................................................................... 82

3.10.3

I2C registers ...................................................................................... 84

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