1. AT8RF231介绍

1.1. Chip Over

The AT86RF231 is a feature rich, low-power 2.4 GHz radio transceiver designed for industrial and consumer ZigBee/IEEE 802.15.4, 6LoWPAN, RF4CE and high data rate 2.4 GHz ISM band applications.

The radio transceiver is a true SPI-to-antenna solution. All RF-critical components except the antenna, crystal and de-coupling capacitors are integrated on-chip. Therefore, the AT86RF231 is particularly suitable for applications like:

• 2.4 GHz IEEE 802.15.4 and ZigBee systems

• 6LoWPAN and RF4CE systems

• Wireless sensor networks

• Industrial control, sensing and automation (SP100, WirelessHART)

• Residential and commercial automation

• Health care

• Consumer electronics

• PC peripherals

1.2. Radio Transceiver Features:

• 128-byte FIFO (SRAM) for Data Buffering
• Programmable Clock Output, to Clock the Host Microcontroller or as Timer Reference
• Integrated RX/TX Switch
• Fully Integrated, Fast Settling PLL to support Frequency Hopping – Battery Monitor – Fast Wake-Up Time < 0.4 msec
• Special IEEE 802.15.4-2006 Hardware Support:

• FCS Computation and Clear Channel Assessment – RSSI Measurement, Energy Detection and Link Quality Indication

  1.3. MAC Hardware Accelerator:

• Automated Acknowledgement, CSMA-CA and Retransmission – Automatic Address Filtering
• Automated FCS Check
• Extended Feature Set Hardware Support:
• AES 128-bit Hardware Accelerator
• RX/TX Indication (external RF Front-End Control)
• RX Antenna Diversity
• Supported PSDU data rates: 250 kb/s, 500 kb/s, 1 Mb/s and 2 Mb/s – True Random Number Generation for Security Application

1.4. Microcontroller Interface