Physical Layer (PHY)

The radio in the CC13xx and CC26xx device platform offers a wide variety of different operational modes, covering many different packet formats. The radio firmware executes from the CC13x2 and CC26x2 platform radio domain on an Arm® Cortex®-M0 processor, which can provide extensive baseband automation. The application software interfaces and interoperates with the radio firmware using shared memory interface (system RAM or radio RAM) and specific handshake hardware (radio doorbell).

In this section we will explore the main type of radio PHY configuration used to create proprietary network/protocols.

• Operation Modes
• Proprietary Mode
  • Packet Format
  • Migrating from CC1101
• IEEE 802.15.4 Mode
  • Packet Format
  • Basic Configuration
• TX Power
  • TX Power Configuration
  • TX Power Tables
  • .txPower setting vs TX Power Table setting
  • TX20_POWER_OVERRIDE() setting vs TX Power Table setting, HPA
  • Programming the TX Power Level
  • Enable VDDR Boost Mode
  • Use the +20 dBm Power Amplifier
• Manchester Encoding
• Packet format debugging
• Time synchronization over the air
  • One-way synchronization example
  • A two-way synchronization algorithm
  • Sending and receiving timestamp messages