The BMD-100 is a not a stand alone device and requires the use of a host MCU with a SPI interface. The module requires six connections in addition to power and ground: SPI_CLK, SPI_CS, SPI_MOSI, SPI_MISO, SPI_IRQ, and nRESET. SPI_IRQ needs a pull-down resistor (100kΩ typ). Please see the datasheet for additional specifications, such as the electrical, mechanical, and crystal specifications.
NOT RECOMMENDED FOR NEW DESIGNS (NRND)
Rigado does not recommend using the BMD-100 for new designs. This product continues to be in production to support existing customers.