54 Revision History

Revision C - 12/2025

The following changes were implemented for this revision:

SectionChanges
Description
  • Updated the first paragraph to clarify language

Rev. B - 11/2022

Note: Microchip is in the process of implementing inclusive language in our documentation. During this update, you may see the old terms and the new terms in our documentation text. We apologize for any confusion.
SectionChanges
Minor editorial changes throughout.
Pinout and MultiplexingCorrected pin 62 name.
Input/Output LinesShutdown (SHDN) Pin: corrected pin name.
Flash Memory Hardware ERASE Signal: updated.
MemoriesApplication Core and Metrology Core Boot Process: updated.
ROM Code and Boot StrategiesGPNVM Bits Overview: updated table.
Supply Controller (SUPC)SUPC_SR: index 12 now 'reserved'.
Clock Generator

PLL Controls: updated.

Power Management Controller (PMC)

Block Diagram: updated.

Processor Clock Controller: updated.

SysTick Clock: updated.

Asynchronous Partial Wake-Up: Description updated.

MCK0 Frequency Monitor: updated.

Recommended Programming Sequence: updated.

CPU Clock Switching Timings: updated.

Main System Bus Clocks Switching Timings: updated.

Updated bit names:

PMC_SCER

PMC_SCDR

PMC_SCSR

PMC_CPU_CKR

PMC_IER

PMC_IDR

PMC_SR

PMC_IMR

PMC_PCR: index 19:16 now ‘reserved’.

Chip Identifier (CHIPID)Chip ID Registers: updated table.
Flexible Serial Communication Controller (FLEXCOM)

Throughout: Deleted references to Host High-Speed mode.

Bus Clear Command, FIFO Pointer Error, FLEX_TWI_CR: modified

Sniffer Mode: updated Sniffer description.

FLEX_TWI_SMR: updated BSEL description.

Quad Serial Peripheral Interface (QSPI)Corrected clock name from GCK to GCLK throughout.
Analog-to-Digital Converter (ADC) Controller

ADC_MR: updated reset value.

Analog Comparator Controller (ACC)ACC_ISR: updated reset value.
Advanced Encryption Standard (AES)AES_MR: updated reset value.
True Random Number Generator (TRNG)

TRNG_WPSR: modified SWETYP description (value 5).

Pulse Width Modulation Controller (PWM)

Fault Protection: figure updated.

Electrical Characteristics

VDD3V3 Power-On-Reset: corrected unit in table.

Analog Comparator Characterisitics: corrected unit in table.

Rev. A - 03/2022

First Issue.