RFM70-S

RFM70 V1.0 Low Power High Performance 2.4 GHz GFSK Transceiver Module Features 2400-2483.5 MHz ISM band operation Support 1 and 2 Mbps air data rate Programmable output power (-40dBm to 5dBm) Low power consumption Variable payload length from 1 to 32bytes Automatic packet processing 6 data pipes for 1:6 star networks 1.9V to 3.6V power supply 4-pin SPI interface with maximum 8 MHz clock rate DIP-8pin and SMD-8pin Package RFM70 Applications Wireless PC peripherals Remote controls Wireless mice and keyboards Consumer electronics Wireless gamepads Home automation Wireless audio Toys VOIP and wireless headsets Personal health and entertainment Block Diagram 1 RFM70 V1.0 Table of Contents 1 General Description ................................................................................................................. 3 2 Abbreviations .......................................................................................................................... 4 3 Pin Information ....................................................................................................................... 5 4 State Control ........................................................................................................................... 6 4.1 State Control Diagram ............................................................................................................... 6 4.2 Power Down Mode.................................................................................................................... 7 4.3 Standby-I Mode ......................................................................................................................... 7 4.4 Standby-II Mode........................................................................................................................ 7 4.5 TX Mode ................................................................................................................................... 7 4.6 RX Mode ................................................................................................................................... 8 5 Packet Processing .................................................................................................................... 8 5.1 Packet Format ............................................................................................................................ 8 5.1.1 Preamble........................................................................................................................... 9 5.1.2 Address............................................................................................................................. 9 5.1.3 Packet Control .................................................................................................................. 9 5.1.4 Payload ........................................................................................................................... 10 5.1.5 CRC................................................................................................................................ 10 5.2 Packet Handling ...................................................................................................................... 10 6 Data and Control Interface .................................................................................................... 11 6.1 TX/RX FIFO ........................................................................................................................... 11 6.2 Interrupt ................................................................................................................................... 11 6.3 SPI Interface ............................................................................................................................ 12 6.3.1 SPI Command ................................................................................................................ 12 6.3.2 SPI Timing ..................................................................................................................... 13 7 Register Map ......................................................................................................................... 15 7.1 Register Bank 0 ....................................................................................................................... 15 7.2 Register Bank 1 ....................................................................................................................... 20 8 Electrical Specifications ......................................................................................................... 21 9 Typical Application Schematic ............................................................................................... 22 10 Package Information.............................................................................................................. 23 11 Order Information ................................................................................................................. 25 12 Contact Information .............................................................................................................. 26 Tel:+8675586096587Fax:+8675586096602Email:sales hoperf.com