54.3 Revision H - 09/2021

The following updates were added in this revision of the document.


Section	Updates
General	The SPI and I²C standards use the terminology "Master" and "Slave". The equivalent Microchip terminology, "Host" and "Client," is used in this document. This terminology has been updated throughout this document for this revision.
Features	Added new bulleted items for the PWM under Peripherals.
Configuration Summary	Updated the TC and Waveform PWM entries in the following tables: C21 Family Features C20 Family Features
Signal Descriptions List	Updated the TC and TCC entries with new verbiage for waveform/PWM outputs
Power Supply and Start-Up Considerations	Updated the title of Power-Up Sequence to Power-Up Sequence - Maximum Rise Rate, and consolidated the text.
Processor and Architecture	Removed Erroneous PM-Power Manager mentions in the Interrupt Line Mapping tables.
MCLK	Removed incorrect CLKCFG text from Clock Ready Flag Updated the INTFLAG Register changing CLKCFG to CPUDIV
SUPC	Added new text to the bit description for the BODVDDRDY bitfield in the STATUS register.
EVSYS	Updated the Event Generators table in the CHANNELn Register Updated the User Multiplexer Number table in the USERm Register
SERCOM - USART	Removed erroneous text from I/O Lines.
SERCOM - SPI	Removed erroneous text from I/O Lines Updated the text for the DOPO bitfield in the CTRLA Register
SERCOM I²C	Updated the verbiage in the DRDY bitfield for the INTFLAG Register.
TCC	Updated the Register Offset equation for the CCx Register.
CCL	Updated the Linked Lut Input Selection figure in Truth Table Inputs Selection with a new image.
ADC	Updated the equation for the SAMPLEN bitfield in the SAMPCTRL Register.
Electrical Characteristics at 85°C	Updated the POR Operating Principle image in POR - Power ON Reset Characteristics Updated the images BODVDD Hysteresis OFF and BODVDD Hysteresis ON in BODVDD - Brown Out Detector Characteristics Updated the Differential Mode, and Single-Ended Mode tables with new Conditions for the TUE Parameter in Analog-to-Digital Converter (ADC) Characteristics Removed erroneous SS line from the SPI Timing Requirements in Host Mode figure in SERCOM in SPI Mode Timing
Electrical Characteristics at 105°C (SAM C20/C21 N)	Updated the Differential Mode, and Single-Ended Mode tables with new Conditions for the TUE Parameter in Analog-to-Digital Converter (ADC) Characteristics Updated the images BODVDD Hysteresis OFF and BODVDD Hysteresis ON in BODVDD - Brown Out Detector Characteristics
Electrical Characteristics AEC - Q100 Grade 1, 125°C (SAM C20/C21 E/G/J)	Updated the Differential Mode, and Single-Ended Mode tables with new Conditions for the TUE Parameter in Analog-to-Digital Converter (ADC) Characteristics.
Electrical Characteristics AEC - Q100 Grade 1, 125°C (SAM C20/C21 N)	Updated the Differential Mode, and Single-Ended Mode tables with new Conditions for the TUE Parameter in Analog-to-Digital Converter (ADC) Characteristics Updated the images BODVDD Hysteresis OFF and BODVDD Hysteresis ON in BODVDD - Brown Out Detector Characteristics
Appendix A	Updated the Ordering Information with all new tables.
Packaging Information	Updated the note in the following packages: 64-Pin VQFN 48-Pin VQFN
Schematic Checklist	Updated External Reset Circuit with new images and a new note.