BLUENRG-1 datasheet(14/173 Pages) STMICROELECTRONICS

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Functional details

BlueNRG-1

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DocID028866 Rev 1

Functional details

The BlueNRG-1 integrates the blocks listed below:



Cortex M0 core



Interrupts management



160 KB Flash memory



24 KB of RAM with two retention options (12 KB or 24 KB)



Power management



Clocks



Bluetooth low energy radio



Random number generator (RNG) (it is reserved to Bluetooth low energy protocol

stack, but user application can read it)



Public Key Cryptography (PKA) (reserved to Bluetooth low energy protocol stack)



Peripherals:



SPI interface



UART interface



I2C bus interface



GPIO



Multifunction timer



DMA controller



Watchdog



RTC



ADC with battery indicator



PDM stream processor

The main blocks are described in the following subsection.

3.1

Core

The ARM® Cortex® -M0 processor has been developed to provide a low-cost platform that

meets the needs of MCU implementation, with a reduced pin count and low-power

consumption, while delivering outstanding computational performance and an advanced

system response to interrupts.

The ARM® Cortex® -M0 32-bit RISC processor features exceptional code-efficiency,

delivering the high-performance expected from an ARM core in the memory size usually

associated with 8-bit and 16-bit devices.

The BlueNRG-1 has an embedded ARM core and is therefore compatible with all ARM

tools and software.

3.2

Interrupts

The Cortex-M0 nested vector interrupt controller (NVIC) handles interrupts. The NVIC

controls specific Cortex-M0 interrupts (address 0x00 to 0x3C) as well as 32-user interrupts

(address 0x40 to 0xBC). In the BlueNRG-1 device, the user interrupts are connected to the

interrupt signals of the different peripherals.

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