Fully Qualified Bluetooth® v2.1 + EDR Specification ■ Piconet and Scatternet Support ■ Minimum External Components ■ Low-power 1.5V Operation, 1.8V to 3.6V I/O ■ Integrated 1.8V and 1.5V Regulators ■ UART to 4Mbaud ■ SDIO (Bluetooth Type A)/CSPI Int