Data Sheet

1064
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
CTRLB register: Removed table from NVM Read Wait States description (RWS[3:0])
“PORT” on page 379
Instances of the term “pad” replaced with “pin”.
Instances of the term “bundle” replaced with “group” and “interface”.
“Basic Operation” on page 383 description updated.
Peripheral Multiplexing n (PMUX0) register: Offset formula updated.
“EVSYS – Event System” on page 406
Updated information in “Features” on page 406.
“Power Management” on page 407 updated: Description of on how event generators can generate an event when
the system clock is stopped moved to “Sleep Mode Operation” on page 412.
“Clocks” on page 407 updated: Renamed EVSYS channel dedicated generic clock from GCLK_EVSYS_x to
GCLK_EVSYS_CHANNELx.
Updated description in “Principle of Operation” on page 408.
Updated description in sub sections of “Basic Operation” on page 408.
Updated description in “The Overrun Channel x Interrupt” on page 412.
Channel x Overrun bit description in INTFLAG updated.
“SERCOM USART – SERCOM Universal Synchronous and Asynchronous Receiver and Transmitter” on page 440
Updated description in “Break Character Detection and Auto-baud” on page 449.
Updated description in “Start-of-Frame Detection” on page 451.
“I2S - Inter-IC Sound Controller” on page 574
Introducing Frame Synch Clock.
“Signal Description” on page 575: Added separate tables for Master-, Slave- and Controller mode.
Updated description in “Debug Operation” on page 577 and “Register Access Protection” on page 577.
Updated description in “Principle of Operation” on page 578.
Updated description in sub sections of “Basic Operation” on page 580.
Updated formula in “MCKn Clock frequency” on page 581.
Updated formulas in “Relation between MCKn, SCKn and sampling frequency(fs)” on page 581.
Updated description in “PDM Reception” on page 585.
Section on MONO removed and information included in “Basic Operation” on page 580.
Updated property of Control A (CTRLA) register: Added Write-Synchronized
“TCC – Timer/Counter for Control Applications” on page 651