| Entire Document |
- Added
ATmega809/ATmega1609
- Updated
Electrical Characteristics section and Typical
Characteristics section
- Added package
drawing for UQFN
- Updated package
drawing for TQFP
|
| Entire Document |
|
| Features |
- Added industrial
temperature range -40°C to +85°C
|
| Ordering Information |
- Added table of
available product numbers
- Updated Product
Information System figure
|
| Entire Document |
- Added support for
ATmega808/809/1608/1609
- Added support for
40-pin PDIP
- Editorial
updates
- Renamed document
type from manual to family data sheet
|
| Features |
- Updated data
retention information
- Extended speed
grade information
|
| Memories |
- Added oscillator
calibration (OSCCALnnxn) registers
- SIGROW
- Updated
description to clarify that information is stored in
fuse bytes, not in volatile registers.
- FUSE
- Clarifying that reserved bits within a fuse byte must
be written to ‘0’
- Removed
non-recommended BOD levels in BODCFG
- Updating
access for LOCKBIT from R/W to R
- Removed
misleading reset values
- Updated
Memory Section Access from CPU and UPDI on Locked
Device section
|
| AVR_CPU |
- Removed redundant
information
|
| CLKCTRL - Clock Controller |
- Added
OSC20MCALIBA register
|
| EVSYS - Event System |
- STROBE/STROBEA
renamed to STROBEx
- Event
Generators
- Added
Window Compare Match for ADC
- Updated
TCB event generator description
- Event Users
- STROBEn
- Updated
access from R/W to W
- Updated generator
names in CHANNEL
- Updated table in
USER
|
| PORTMUX - Port Multiplexer |
- Added explicit
information for EVSYSROUTEA register
|
| BOD - Brown-out Detect |
- Removed
non-recommended BOD levels from CTRLB
|
| TCA - 16-bit Timer/Counter Type A |
- Single Slope PWM
Generation
- Revised
figure and description
- Dual Slope PWM
- Revised
figure and description
- Events
- Revised
description and added table
|
| TCB - 16-bit Timer/Counter Type B |
- Updated block
diagram for clock sources
- Mode figures
legend use improved
- Input Capture
Pulse-Width Measurement mode figure corrected
- 8-bit PWM mode
pseudo-code replaced by figure
- Added output
configuration table
|
| RTC - Real-Time Counter |
- Clarified that
first PIT interrupt and RTC count tick will be unknown
- Added Debug
Operation section
- Updated reset
values for PER and CMP register
- Updated access
for PITINTFLAGS register
|
| USART - Universal Synchronous and Asynchronous Receiver
and Transmitter |
- Structural
changes
- General content
improvements
|
| SPI - Serial Peripheral Interface |
|
| TWI - Two-Wire Interface |
- Removed
misleading internal information from Overview
section
- Cleaned up Dual
Control information
- Clarified APIEN
description in SCTRLA
|
| CCL - Configurable Custom Logic |
- Register summary
updated: Number n of LUTs and according registers (LUTnCTRLA,
LUTnCTRLB, LUTnCTRLC, TRUTHn)
- Update of terms
and descriptions:
- Block
Diagram section
- CCL Input
Selection MUX section
- Sequencer
Logic
- Events
- Filter
- Association LUT-Sequencer
|
| ADC - Analog-to-Digital Converter |
- Updated ADC
Timing Diagrams
- Single
Conversion
- Free-Running Conversion
- Added information
in the Events section
|
| UPDI - Unified Program and Debug Interface |
- General content
improvements
- Updated Access
for UROWWRITE in ASI_KEY_STATUS register
|