Revision history

The following content has been added or updated:

• Added content in the following chapters:
  • SPI, TWI, and UART – RXD register description
• Updated content in the following chapters:
  • About this document – Register field permissions table
  • FICR – INFO.VARIANTS and INFO.PART
  • NVMC – Removed deprecated registers ERASEPCR1 and ERASEPCR0
  • RADIO – Parameter ED_RSSISCALE value
  • Reference circuitry – Configuration 1 for CFAA WLCSP package
  • SPIS – Electrical parameters t_SPIS,VSO, t_SPIS,HSO, t_SPIS,SUSI, and t_SPIS,HSI; removed deprecated registers
• Editorial changes

The following content has been added:

• Reference circuitry – PMIC support section

The following content has been added or updated:

• Ordering information – Build codes Cxx not recommended for new designs

The following content has been added or updated:

• Added information for the WLCSP package variant in the following chapters:
  • Absolute maximum ratings
  • FICR
  • Ordering information
  • Reference circuitry
  • Mechanical specifications
  • Pin assignments
• Editorial changes

The following content has been added or updated:

• FICR – Updated package descriptions and INFO.VARIANT device variants
• Debug and trace and UICR – Updated access port protection
• POWER – Added parameter R_{SOURCE,VBUSVDDH} and changed the value of parameter R_{SOURCE,VBUSVDDH} to 6 Ω
• CLOCK – Added parameter V_{AMP,IN,XO,LOW}
• CCM – Added HEADERMASK register
• RADIO – Added parameter P_{ACP,R, IEEE 802.15.4}, and P_{ACP,A, IEEE 802.15.4}
• SPIM – Removed invalid parameter t_SPIM,VMO,HS
• Pin assignments – Added note on DEC5
• Reference circuitry – Added note for DEC5 and updated USB serial resistor recommended value
• Ordering information – Added new product options and updated box labels
• Editorial changes