| Document |
- General
improvement of the documentation and its structure
- Updated
terminology used throughout the data sheet:
- Master is replaced by host
- Slave is replaced by client
|
| Device |
- Memories
- Improved
BODCFG fuse description
- Peripherals and
Architecture
- Updated
the Interrupt Vector Mapping table
- Updated
the REVID.MAJOR bit field description from 0x00 = A,
0x01 = B to 0x01 = A, 0x02 = B
- Ordering
Information
- Added
note for automotive-grade ordering codes (VAO
suffix)
- Package
Drawings
- Added
note in the Online Package Drawings section
- Added the
Package Marking section
- Updated
64-Pin VQFN style from MR to R4X
- Added 32,
48 and 64-Pin VQFN Wettable Flanks packages
|
| Hardware Guidelines |
- Digital Power
Supply
- Updated
primary decoupling capacitor value to 100 nF
- Added
optional decoupling capacitor (C3)
- Added
note
|
| CPU |
- Updated the
AVR® CPU Architecture figure
- Improved
description for the RAMPZ register
|
| NVMCTRL |
- Updated the
NVMCTRL Block Diagram figure
- Removed offset
column from the Available Interrupt Vectors and Sources
table
|
| CLKCTRL |
- Updated the
Phase-Locked Loop (PLL) section. Added initialization
example.
- The
Auto-Tune section renamed to Manual Tuning and
Auto-Tune. Added the new Manual Tuning
section.
- CLKCTRL.PLLCTRLA
added to the list of registers requiring Configuration Change
Protection (in the Registers Under Configuration Change
Protection table)
- Improved
description of the RUNSTBY bit in the OSCHFCTRLA, OSCHFTUNE,
PLLCTRLA, OSC32KCTRLA and XOSC32KCTRLA registers
- Improved
description of the XOSC32KCTRLA bit fields
- Updated the name
of the MULFAC bit field in the PLLCTRLA register from Frequency
Select to Multiplication Factor
- Improved
description of the PLLCTRLA.MULFAC bit field
|
| SLPCTRL |
- Improved the
Sleep modes section
- Updated the
Sleep Mode Activity Overview tables
- Added the
Configuration Change Protection section
- Updated
description for the VREGCTRL.HTLLEN bit field
|
| RSTCTRL |
- Figures
updated:
- Block
Diagram
- MCU
Start-up, RESET Tied to
VDD
- Brown-out Detector Reset
- External Reset Characteristics
- Figures added:
- Watchdog Reset
- Software Reset
- Updated the
Logic Domains Affected by Various Resets table
- Updated the
Reset Time section
|
| CPUINT |
- Updated the
CPUINT - Registers under Configuration Change
Protection table
- Improved the
Non-Maskable Interrupts section
|
| PORT |
- System Clock
renamed to Peripheral clock
- Added
initialization code example in the Multi-Pin
Configuration section
- Added
clarification notes in following sections:
- Multi-Pin Configuration
- Virtual Ports
- PINCONFIG.ISC bit field description
|
| BOD |
- The VLMCTRL
register renamed to VLMCTRLA
|
| TCA |
- Improved the
Frequency (FRQ) Waveform Generation section:
- Added
description on WOn offset
- Added the
Offset When Counting Up and Inverting
Waveform Output figures
- Added the
Offset Equation Overview table
- Added the
Single-Slope Pulse-Width Modulation in Split
Mode figure
- Figures
updated:
- Timer/Counter Block Diagram
- Single-Slope Pulse-Width Modulation
- Dual-Slope Pulse-Width Modulation
- Added
clarification notes in the following sections:
- Single-Slope Pulse-Width Modulation
- Dual-Slope Pulse-Width Modulation
- Events
- Improved the
Split Mode - Two 8-Bit Timer/Counters section
- Improved bit
fields and register description:
- Added
clarification note in the CTRLC register
description
- Improved
description for the LUPD bit field in the CTRLECLR and
CTRLESET registers
- Improved
description for UPDOWN value of the EVACTA/B bit field
in the EVCTRL register
|
| TCB |
- General
improvement of the documentation
|
| TCD |
- Updated the
FAULTCTRL register bit fields name:
- CMPxEN
renamed to CMPEN
- CMPx
renamed to CMP
|
| RTC |
- Removed note from
the RTC Functional Description - Configure RTC
section
- Removed note from
the PIT Functional Description - Initialization
section
|
| USART |
- Updated
terminology:
- Master is replaced by host
- Slave is replaced by client
|
| SPI |
- General
improvement of the documentation
- Updated
terminology:
- Master is replaced by host
- Slave is replaced by client
|
| TWI |
- Improved
description for the Client Initialization section
- Improved
description for register bit fields:
- The
SDASETUP bit field from the CTRLA register
- The
INPUTLVL, FMPEN and SDAHOLD bit fields from the DUALCTRL
register
- The FLUSH
bit field from the MCTRLB register
- The
BUSSTATE bit field from the MSTATUS register
- The SCMD
bit field from the SCTRLB register
|
| CCL |
- Updated the
Truth Table Output Value Selection figure
- Updated the
Linked LUT Input Selection figure
- Improved
description for the TRUTHn registers
- Updated
terminology:
- Master is replaced by host
- Slave is replaced by client
|
| ADC |
- Added information
on warm-up time in the Sleep Mode Operation section
- Updated the
Temperature Measurement section to include INITDLY
and SAMPLEN configuration in the initialization steps
|
| DAC |
- Removed
conversion rate from the Feature section
- Updated the
DAC Block Diagram figure
- Added the
Signal Description section
- Restructured the
Operation section
- Added the
DAC Output section
- The
DAC as Source For Internal Peripheral section
renamed as Unbuffered Output as Source For Internal
Peripherals
- The
DAC Output on Pin section renamed as
Buffered Output
|
| UPDI |
- Renamed
UPDICLKDIV to UPDICLKSEL
- Updated the
UPDI Clock Domains figure
- Improved the
Clocks section
- Improved figures
in the UPDI Instruction Set section
- Updated Reset
value for the STATUSA.UPDIREV bit field
- Renamed the
ASI_KEY_STATUS.CHIPERASE bit field to ASI_KEY_STATUS.CHER
- Renamed the
ASI_CTRLA.UPDICLKDIV bit field to ASI_CTRLA.UPDICLKSEL
- Renamed the
ASI_SYS_STATUS.UPDICLKDIV bit field to
ASI_SYS_STATUS.UPDICLKSEL
|
| Electrical characteristics |
- Updated the
Electrical Characteristics section
- Added the
Characteristics Graphs section
|
