ATmega16M1/32C1/32M1/64C1/64M1 Automotive - Summary

ATmega16M1/ATmega32M1/ATmega64M1/
ATmega32C1/ATmega64C1 Automotive
8-bit Microcontroller with 16K/32K/64K Bytes In-system
Programmable Flash
SUMMARY DATASHEET
Features
● High performance, low power AVR® 8-bit microcontroller
● Advanced RISC architecture
●
●
●
●
●
131 powerful instructions - most single clock cycle execution
32 8 general purpose working registers
Fully static operation
Up to 1MIPS throughput per MHz
On-chip 2-cycle multiplier
● Data and non-volatile program memory
● 16K/32K/64K bytes flash of in-system programmable program memory
● Endurance: 10,000 write/erase cycles
● Optional boot code section with independent lock bits
● In-system programming by on-chip boot program
● True read-while-write operation
● 512/1024/2048 bytes of in-system programmable EEPROM
● Endurance: 100,000 write/erase cycles
● Programming lock for flash program and EEPROM data security
● 1024/2048/4096 bytes internal SRAM
● On chip debug interface (debugWIRE)
● CAN 2.0A/B with 6 message objects - ISO 16845 certified (1)
● LIN 2.1 and 1.3 controller or 8-Bit UART
● One 12-bit high speed PSC (power stage controller) (only ATmega16/32/64M1)
●
●
●
●
Non overlapping inverted PWM output pins with flexible dead-time
Variable PWM duty cycle and frequency
Synchronous update of all PWM registers
Auto stop function for emergency event
● Peripheral features
● One 8-bit general purpose Timer/Counter with separate prescaler, compare mode
and capture mode
● One 16-bit general purpose Timer/Counter with separate prescaler, compare
mode and capture mode
This is a summary document.
The complete document is
available on the Atmel website
at www.atmel.com.
1.
See certification on Atmel® web site.
7647HS-AVR-01/15
● One master/slave SPI serial interface
● 10-bit ADC
● Up To 11 single ended channels and 3 fully differential ADC channel pairs
● Programmable gain (5x, 10x, 20x, 40x) on differential channels
● Internal reference voltage
● Direct power supply voltage measurement
● 10-bit DAC for variable voltage reference (comparators, ADC)
● Four analog comparators with variable threshold detection
● 100µA ±6% current source (LIN node identification)
● Interrupt and wake-up on pin change
● Programmable watchdog timer with separate on-chip oscillator
● On-chip temperature sensor
● Special microcontroller features
●
●
●
●
Low power idle, noise reduction, and power down modes
Power on reset and programmable brown out detection
In-system programmable via SPI port
High precision crystal oscillator for CAN operations (16MHz)
● Internal calibrated RC oscillator (8MHz)
● On-chip PLL for fast PWM (32MHz, 64MHz) and CPU (16MHz) (only ATmega16/32/64M1)
● Operating voltage:
● 2.7V - 5.5V
● Extended operating temperature:
● –40°C to +125°C
● Core speed grade:
● 0 - 8MHz at 2.7 - 4.5V
● 0 - 16MHz at 4.5 - 5.5V
Table 1.
ATmega32/64/M1/C1 Product Line-up
Part Number
ATmega32C1
ATmega64C1
ATmega16M1
ATmega32M1
ATmega64M1
Flash size
32 Kbyte
64 Kbyte
16 Kbyte
32 Kbyte
64 Kbyte
RAM size
2048 bytes
4096 bytes
1024 bytes
2048 bytes
4096 bytes
EEPROM size
1024 bytes
2048 bytes
512 bytes
1024 bytes
2048 bytes
8-bit timer
Yes
16-bit timer
Yes
PSC
No
PWM outputs
4
Fault inputs (PSC)
0
PLL
Yes
4
10
0
3
No
11 single
3 differential
10-bit DAC
Yes
Analog comparators
4
Current source
Yes
CAN
Yes
LIN/UART
Yes
On-chip temp.
sensor
Yes
SPI interface
Yes
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
10
3
3
Yes
10-bit ADC channels
2
10
Pin Configurations
PC7 (D2A/AMP2+/PCINT15)
PB5 (ADC6/INT2/ACMPN1/AMP2-/PCINT5)
PB6 (ADC7/PSCOUT1B/PCINT6)
PB7 (ADC4/PSCOUT0B/SCK/PCINT7)
PC0 (PCINT8/INT3/PSCOUT1A)
PD0 (PCINT16)
PE0 (PCINT24/RESET/OCD)
PD1 (PCINT17/PSCIN0/CLKO)
Figure 1-1. ATmega16/32/64M1 TQFP32/QFN32 (7*7mm) Package
32 31 30 29 28 27 26 25
(PCINT18/PSCIN2/OC1A/MISO_A) PD2
1
24
PB4 (AMP0+/PCINT4)
(PCINT19/TXD/TXLIN/OC0A/SS/MOSI_A) PD3
2
23
PB3 (AMP0-/PCINT3)
(PCINT9/PSCIN1/OC1B/SS_A) PC1
3
22
PC6 (ADC10/ACMP1/PCINT14)
VCC
4
21
AREF(ISRC)
GND
5
20
AGND
(PCINT10/T0/TXCAN) PC2
6
19
AVCC
(PCINT11/T1/RXCAN/ICP1B) PC3
7
18
PC5 (ADC9/ACMP3/AMP1+/PCINT13)
(PCINT0/MISO/PSCOUT2A) PB0
8
17
PC4 (ADC8/ACMPN3/AMP1-/PCINT12)
Note:
(ADC5/INT1/ACMPN0/PCINT2) PB2
(ACMP0/PCINT23) PD7
(ADC2/ACMP2/PCINT21) PD5
(ADC3/ACMPN2/INT0/PCINT22) PD6
(PCINT20/ADC1/RXD/RXLIN/ICP1A/SCK_A) PD4
(PCINT26/ADC0/XTAL2) PE2
10 11 12 13 14 15 16
(PCINT25/OC0B/XTAL1) PE1
9
(PCINT1/MOSI/PSCOUT2B) PB1
1.
On the engineering samples (parts marked AT90PWM324), the ACMPN3 alternate function is not located on
PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
3
PC7 (D2A/AMP2+/PCINT15)
PB5 (ADC6/INT2/ACMPN1/AMP2-/PCINT5)
PB6 (ADC7/PCINT6)
PB7 (ADC4/SCK/PCINT7)
PC0 (PCINT8/INT3)
PD0 (PCINT16)
PE0 (PCINT24/RESET/OCD)
PD1 (PCINT17/CLKO)
Figure 1-2. ATmega32/64C1 TQFP32/QFN32 (7*7mm) Package
32 31 30 29 28 27 26 25
Note:
4
(PCINT18/OC1A/MISO_A) PD2
1
24
PB4 (AMP0+/PCINT4)
(PCINT19/TXD/TXLIN/OC0A/SS/MOSI_A) PD3
2
23
PB3 (AMP0-/PCINT3)
(PCINT9/OC1B/SS_A) PC1
3
22
PC6 (ADC10/ACMP1/PCINT14)
VCC
4
21
AREF(ISRC)
GND
5
20
AGND
19
AVCC
7
18
PC5 (ADC9/ACMP3/AMP1+/PCINT13)
(PCINT0/MISO) PB0
8
17
PC4 (ADC8/ACMPN3/AMP1-/PCINT12)
(ADC5/INT1/ACMPN0/PCINT2) PB2
(ACMP0/PCINT23) PD7
(ADC2/ACMP2/PCINT21) PD5
(ADC3/ACMPN2/INT0/PCINT22) PD6
(PCINT20/ADC1/RXD/RXLIN/ICP1A/SCK_A) PD4
10 11 12 13 14 15 16
(PCINT26/ADC0/XTAL2) PE2
9
(PCINT25/OC0B/XTAL1) PE1
6
(PCINT1/MOSI) PB1
(PCINT10/T0/TXCAN) PC2
(PCINT11/T1/RXCAN/ICP1B) PC3
On the first engineering samples (parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
1.1
Pin Descriptions
:
Table 1-1.
Pin-out Description
QFN32 Pin
Number
Mnemonic
Type
Name, Function and Alternate Function
5
GND
Power
Ground: 0V reference
20
AGND
Power
Analog Ground: 0V reference for analog part
4
VCC
Power
Power supply
19
AVCC
Power
21
AREF
Power
Analog Power Supply: This is the power supply voltage for analog part
For a normal use this pin must be connected.
Analog Reference: Reference for analog converter. This is the
reference voltage of the A/D converter. As output, can be used by
external analog
ISRC (Current Source Output)
MISO (SPI Master In Slave Out)
8
PB0
I/O
PSCOUT2A (PSC Module 2 Output A)
PCINT0 (Pin Change Interrupt 0)
MOSI (SPI Master Out Slave In)
9
PB1
I/O
PSCOUT2B (PSC Module 2 Output B)
PCINT1 (Pin Change Interrupt 1)
ADC5 (Analog Input Channel 5)
16
PB2
I/O
INT1 (External Interrupt 1 Input)
ACMPN0 (Analog Comparator 0 Negative Input)
PCINT2 (Pin Change Interrupt 2)
23
PB3
I/O
24
PB4
I/O
AMP0- (Analog Differential Amplifier 0 Negative Input)
PCINT3 (Pin Change Interrupt 3)
AMP0+ (Analog Differential Amplifier 0 Positive Input)
PCINT4 (Pin Change Interrupt 4)
ADC6 (Analog Input Channel 6)
INT2 (External Interrupt 2 Input)
26
PB5
I/O
ACMPN1 (Analog Comparator 1 Negative Input)
AMP2- (Analog Differential Amplifier 2 Negative Input)
PCINT5 (Pin Change Interrupt 5)
ADC7 (Analog Input Channel 7)
27
PB6
I/O
PSCOUT1B (PSC Module 1 Output A)
PCINT6 (Pin Change Interrupt 6)
ADC4 (Analog Input Channel 4)
28
PB7
I/O
PSCOUT0B (PSC Module 0 Output B)
SCK (SPI Clock)
PCINT7 (Pin Change Interrupt 7)
PSCOUT1A (PSC Module 1 Output A)
30
Note:
PC0
1.
I/O
INT3 (External Interrupt 3 Input)
PCINT8 (Pin Change Interrupt 8)
On the first engineering samples (parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
5
Table 1-1.
Pin-out Description (Continued)
QFN32 Pin
Number
Mnemonic
Type
Name, Function and Alternate Function
PSCIN1 (PSC Digital Input 1)
3
PC1
I/O
OC1B (Timer 1 Output Compare B)
SS_A (Alternate SPI Slave Select)
PCINT9 (Pin Change Interrupt 9)
T0 (Timer 0 clock input)
6
PC2
I/O
TXCAN (CAN Transmit Output)
PCINT10 (Pin Change Interrupt 10)
T1 (Timer 1 clock input)
7
PC3
I/O
RXCAN (CAN Receive Input)
ICP1B (Timer 1 input capture alternate B input)
PCINT11 (Pin Change Interrupt 11)
ADC8 (Analog Input Channel 8)
17
PC4
I/O
AMP1- (Analog Differential Amplifier 1 Negative Input)
ACMPN3 (Analog Comparator 3 Negative Input)
PCINT12 (Pin Change Interrupt 12)
ADC9 (Analog Input Channel 9)
18
PC5
I/O
AMP1+ (Analog Differential Amplifier 1 Positive Input)
ACMP3 (Analog Comparator 3 Positive Input)
PCINT13 (Pin Change Interrupt 13)
ADC10 (Analog Input Channel 10)
22
PC6
I/O
ACMP1 (Analog Comparator 1 Positive Input)
PCINT14 (Pin Change Interrupt 14)
D2A (DAC output)
25
PC7
I/O
AMP2+ (Analog Differential Amplifier 2 Positive Input)
PCINT15 (Pin Change Interrupt 15)
29
PD0
I/O
32
PD1
I/O
PSCOUT0A (PSC Module 0 Output A)
PCINT16 (Pin Change Interrupt 16)
PSCIN0 (PSC Digital Input 0)
CLKO (System Clock Output)
PCINT17 (Pin Change Interrupt 17)
OC1A (Timer 1 Output Compare A)
1
PD2
I/O
PSCIN2 (PSC Digital Input 2)
MISO_A (Programming & alternate SPI Master In Slave Out)
PCINT18 (Pin Change Interrupt 18)
TXD (UART Tx data)
TXLIN (LIN Transmit Output)
2
PD3
I/O
OC0A (Timer 0 Output Compare A)
SS (SPI Slave Select)
MOSI_A (Programming & alternate Master Out SPI Slave In)
Note:
6
1.
PCINT19 (Pin Change Interrupt 19)
On the first engineering samples (parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
Table 1-1.
Pin-out Description (Continued)
QFN32 Pin
Number
Mnemonic
Type
Name, Function and Alternate Function
ADC1 (Analog Input Channel 1)
RXD (UART Rx data)
12
PD4
I/O
RXLIN (LIN Receive Input)
ICP1A (Timer 1 input capture alternate A input)
SCK_A (Programming & alternate SPI Clock)
PCINT20 (Pin Change Interrupt 20)
ADC2 (Analog Input Channel 2)
13
PD5
I/O
ACMP2 (Analog Comparator 2 Positive Input)
PCINT21 (Pin Change Interrupt 21)
ADC3 (Analog Input Channel 3)
14
PD6
I/O
ACMPN2 (Analog Comparator 2 Negative Input)
INT0 (External Interrupt 0 Input)
PCINT22 (Pin Change Interrupt 22)
15
PD7
I/O
31
PE0
I/O or I
ACMP0 (Analog Comparator 0 Positive Input)
PCINT23 (Pin Change Interrupt 23)
RESET (Reset Input)
OCD (On Chip Debug I/O)
PCINT24 (Pin Change Interrupt 24)
XTAL1 (XTAL Input)
10
PE1
I/O
OC0B (Timer 0 Output Compare B)
PCINT25 (Pin Change Interrupt 25)
XTAL2 (XTAL Output)
11
Note:
PE2
1.
I/O
ADC0 (Analog Input Channel 0)
PCINT26 (Pin Change Interrupt 26)
On the first engineering samples (parts marked AT90PWM324), the ACMPN3 alternate function is not located
on PC4. It is located on PE2.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
7
2.
Overview
The Atmel® ATmega16/32/64/M1/C1 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC
architecture. By executing powerful instructions in a single clock cycle, the Atmel ATmega16/32/64/M1/C1 achieves
throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing
speed.
2.1
Block Diagram
Figure 2-1. Block Diagram
Data Bus 8-bit
Flash
Program
Memory
Status and
Control
Program
Counter
Interrupt
Unit
SPI
Unit
32 x 8
General
Purpose
Registers
Control Lines
Indirect Addressing
Instruction
Decoder
Direct Addressing
Instruction
Register
Watchdog
Timer
4 Analog
Comparator
ALU
HW LIN/UART
Timer 0
Data
SRAM
Timer 1
ADC
EEPROM
DAC
I/O Lines
MPSC
Currenr Source
CAN
The AVR® core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly
connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction
executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times
faster than conventional CISC microcontrollers.
8
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
The Atmel® ATmega16/32/64/M1/C1 provides the following features: 16K/32K/64K bytes of in-system programmable flash
with read-while-write capabilities, 512/1024/2048 bytes EEPROM, 1024/2048/4096 bytes SRAM, 27 general purpose I/O
lines, 32 general purpose working registers, one motor power stage controller, two flexible Timer/Counters with compare
modes and PWM, one UART with HW LIN, an 11-channel 10-bit ADC with two differential input stages with programmable
gain, a 10-bit DAC, a programmable watchdog timer with internal individual oscillator, an SPI serial port, an on-chip debug
system and four software selectable power saving modes.
The idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI ports, CAN, LIN/UART and interrupt system to
continue functioning. The power-down mode saves the register contents but freezes the oscillator, disabling all other chip
functions until the next interrupt or hardware reset. The ADC noise reduction mode stops the CPU and all I/O modules
except ADC, to minimize switching noise during ADC conversions. In standby mode, the crystal/resonator oscillator is
running while the rest of the device is sleeping. This allows very fast start-up combined with low power consumption.
The device is manufactured using Atmel’s high-density nonvolatile memory technology. The on-chip ISP flash allows the
program memory to be reprogrammed in-system through an SPI serial interface, by a conventional nonvolatile memory
programmer, or by an on-chip boot program running on the AVR core. The boot program can use any interface to download
the application program in the application flash memory. Software in the boot flash section will continue to run while the
application flash section is updated, providing true read-while-write operation. By combining an 8-bit RISC CPU with insystem self-programmable flash on a monolithic chip, the Atmel ATmega16/32/64/M1/C1 is a powerful microcontroller that
provides a highly flexible and cost effective solution to many embedded control applications.
The ATmega16/32/64/M1/C1 AVR® is supported with a full suite of program and system development tools including: C
compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits.
2.2
Automotive Quality Grade
The Atmel ATmega16/32/64/M1/C1 have been developed and manufactured according to the most stringent requirements
of the international standard ISO-TS-16949. This data sheet contains limit values extracted from the results of extensive
characterization (Temperature and Voltage). The quality and reliability of the ATmega16/32/64/M1/C1 have been verified
during regular product qualification as per AEC-Q100 grade 1.
As indicated in the ordering information paragraph, the products are available in only one temperature grade.
Table 2-1.
Temperature Grade Identification for Automotive Products
Temperature
Temperature Identifier
Comments
–40°C; +125°C
Z
Full automotive temperature range
2.3
Pin Descriptions
2.3.1
VCC
Digital supply voltage.
2.3.2
GND
Ground.
2.3.3
Port B (PB7..PB0)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The port B output buffers have
symmetrical drive characteristics with both high sink and source capability. As inputs, port B pins that are externally pulled
low will source current if the pull-up resistors are activated. The port B pins are tri-stated when a reset condition becomes
active, even if the clock is not running.
Port B also serves the functions of various special features of the ATmega16/32/64/M1/C1.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
9
2.3.4
Port C (PC7..PC0)
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The port C output buffers have
symmetrical drive characteristics with both high sink and source capability. As inputs, port C pins that are externally pulled
low will source current if the pull-up resistors are activated. The port C pins are tri-stated when a reset condition becomes
active, even if the clock is not running.
Port C also serves the functions of special features of the Atmel® ATmega16/32/64/M1/C1.
2.3.5
Port D (PD7..PD0)
Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The port D output buffers have
symmetrical drive characteristics with both high sink and source capability. As inputs, port D pins that are externally pulled
low will source current if the pull-up resistors are activated. The port D pins are tri-stated when a reset condition becomes
active, even if the clock is not running.
Port D also serves the functions of various special features of the Atmel ATmega16/32/64/M1/C1.
2.3.6
Port E (PE2..0) RESET/ XTAL1/ XTAL2
Port E is an 3-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The port E output buffers have
symmetrical drive characteristics with both high sink and source capability. As inputs, port E pins that are externally pulled
low will source current if the pull-up resistors are activated. The port E pins are tri-stated when a reset condition becomes
active, even if the clock is not running.
If the RSTDISBL fuse is programmed, PE0 is used as an I/O pin. Note that the electrical characteristics of PE0 differ from
those of the other pins of port E.
If the RSTDISBL fuse is unprogrammed, PE0 is used as a reset input. A low level on this pin for longer than the minimum
pulse length will generate a reset, even if the clock is not running.
Depending on the clock selection fuse settings, PE1 can be used as input to the inverting oscillator amplifier and input to the
internal clock operating circuit.
Depending on the clock selection fuse settings, PE2 can be used as output from the inverting oscillator amplifier.
2.3.7
AVCC
AVCC is the supply voltage pin for the A/D converter, D/A converter, current source. It should be externally connected to
VCC, even if the ADC, DAC are not used. If the ADC is used, it should be connected to VCC through a low-pass filter.
2.3.8
AREF
This is the analog reference pin for the A/D converter.
2.4
About Code Examples
This documentation contains simple code examples that briefly show how to use various parts of the device. These code
examples assume that the part specific header file is included before compilation. Be aware that not all C compiler vendors
include bit definitions in the header files and interrupt handling in C is compiler dependent. Please confirm with the C
compiler documentation for more details.
10
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
3.
Instruction Set Summary
Mnemonics Operands
Description
Operation
Flags
#Clocks
Rd  Rd + Rr
Z, C, N, V, H
1
Arithmetic and Logic Instructions
ADD
Rd, Rr
Add two registers
ADC
Rd, Rr
Add with carry two registers
Rd  Rd + Rr + C
Z, C, N, V, H
1
ADIW
Rdl,K
Add immediate to word
Rdh:Rdl  Rdh:Rdl + K
Z, C, N, V, S
2
SUB
Rd, Rr
Subtract two registers
Rd  Rd – Rr
Z, C, N, V, H
1
SUBI
Rd, K
Subtract constant from register
Rd  Rd – K
Z, C, N, V, H
1
SBC
Rd, Rr
Subtract with carry two registers
Rd  Rd – Rr – C
Z, C, N, V, H
1
SBCI
Rd, K
Subtract with carry constant from reg.
Rd  Rd – K – C
Z, C, N, V, H
1
SBIW
Rdl,K
Subtract immediate from word
Rdh:Rdl Rdh:Rdl – K
Z, C, N, V, S
2
AND
Rd, Rr
Logical AND registers
Rd  Rd Rr
Z, N, V
1
ANDI
Rd, K
Logical AND register and constant
Rd Rd K
Z, N, V
1
OR
Rd, Rr
Logical OR registers
Rd  Rd v Rr
Z, N, V
1
ORI
Rd, K
Logical OR register and constant
Rd  Rd v K
Z, N, V
1
EOR
Rd, Rr
Exclusive OR registers
Rd  Rd  Rr
Z, N, V
1
COM
Rd
One’s complement
Rd  0xFF – Rd
Z, C, N, V
1
NEG
Rd
Two’s complement
Rd  0x00 – Rd
Z, C, N, V, H
1
SBR
Rd,K
Set bit(s) in register
Rd  Rd v K
Z, N, V
1
CBR
Rd,K
Clear bit(s) in register
Rd  Rd · (0xFF – K)
Z, N, V
1
INC
Rd
Increment
Rd  Rd + 1
Z, N, V
1
DEC
Rd
Decrement
Rd  Rd – 1
Z, N, V
1
TST
Rd
Test for zero or minus
Rd  Rd Rd
Z, N, V
1
CLR
Rd
Clear register
Rd  Rd  Rd
Z, N, V
1
SER
Rd
Set register
Rd  0xFF
None
1
MUL
Rd, Rr
Multiply unsigned
R1:R0  Rd x Rr
Z, C
2
MULS
Rd, Rr
Multiply signed
R1:R0  Rd x Rr
Z, C
2
MULSU
Rd, Rr
Multiply signed with unsigned
R1:R0  Rd x Rr
Z, C
2
FMUL
Rd, Rr
Fractional multiply unsigned
R1:R0  (Rd x Rr) << 1
Z, C
2
FMULS
Rd, Rr
Fractional multiply signed
R1:R0  (Rd x Rr) << 1
Z, C
2
FMULSU
Rd, Rr
Fractional multiply signed with
unsigned
R1:R0  (Rd x Rr) << 1
Z, C
2
Relative jump
PC  PC + k + 1
None
2
Indirect jump to (Z)
PC  Z
None
2
Branch Instructions
RJMP
k
IJMP
JMP(*)
k
Direct jump
PC  k
None
3
RCALL
k
Relative subroutine call
PC  PC + k + 1
None
3
Indirect call to (Z)
PC  Z
None
3
Direct subroutine call
PC  k
None
4
Subroutine return
PC  STACK
None
4
Interrupt return
PC  STACK
ICALL
CALL(*)
RET
RETI
CPSE
Note:
1.
k
Rd,Rr
Compare, skip if equal
if (Rd = Rr) PC  PC + 2 or 3
These Instructions are only available in “16K and 32K parts”
I
4
None
1/2/3
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
11
3.
Instruction Set Summary (Continued)
Mnemonics Operands
Description
Operation
Flags
#Clocks
CP
Rd,Rr
Compare
Rd – Rr
Z, N, V, C, H
1
CPC
Rd,Rr
Compare with carry
Rd – Rr – C
Z, N, V, C, H
1
CPI
Rd,K
Compare register with immediate
Rd – K
Z, N, V, C, H
1
SBRC
Rr, b
Skip if bit in register cleared
if (Rr(b)=0) PC  PC + 2 or 3
None
1/2/3
SBRS
Rr, b
Skip if bit in register is set
if (Rr(b)=1) PC  PC + 2 or 3
None
1/2/3
SBIC
P, b
Skip if bit in I/O register cleared
if (P(b)=0) PC  PC + 2 or 3
None
1/2/3
SBIS
P, b
Skip if bit in I/O register is set
if (P(b)=1) PC  PC + 2 or 3
None
1/2/3
BRBS
s, k
Branch if status flag Set
if (SREG(s) = 1) then PC  PC + k + 1
None
1/2
BRBC
s, k
Branch if status flag cleared
if (SREG(s) = 0) then PC  PC + k + 1
None
1/2
BREQ
k
Branch if equal
if (Z = 1) then PC  PC + k + 1
None
1/2
BRNE
k
Branch if not equal
if (Z = 0) then PC  PC + k + 1
None
1/2
BRCS
k
Branch if carry set
if (C = 1) then PC  PC + k + 1
None
1/2
BRCC
k
Branch if carry cleared
if (C = 0) then PC  PC + k + 1
None
1/2
BRSH
k
Branch if same or higher
if (C = 0) then PC  PC + k + 1
None
1/2
BRLO
k
Branch if lower
if (C = 1) then PC  PC + k + 1
None
1/2
BRMI
k
Branch if minus
if (N = 1) then PC  PC + k + 1
None
1/2
BRPL
k
Branch if plus
if (N = 0) then PC  PC + k + 1
None
1/2
BRGE
k
Branch if greater or equal, signed
if (N V= 0) then PC  PC + k + 1
None
1/2
BRLT
k
Branch if less than zero, signed
if (N V= 1) then PC  PC + k + 1
None
1/2
BRHS
k
Branch if half carry flag set
if (H = 1) then PC  PC + k + 1
None
1/2
BRHC
k
Branch if half carry flag cleared
if (H = 0) then PC  PC + k + 1
None
1/2
BRTS
k
Branch if T flag set
if (T = 1) then PC  PC + k + 1
None
1/2
BRTC
k
Branch if T flag cleared
if (T = 0) then PC  PC + k + 1
None
1/2
BRVS
k
Branch if overflow flag is set
if (V = 1) then PC  PC + k + 1
None
1/2
BRVC
k
Branch if overflow flag is cleared
if (V = 0) then PC  PC + k + 1
None
1/2
BRIE
k
Branch if interrupt enabled
if (I = 1) then PC  PC + k + 1
None
1/2
BRID
k
Branch if interrupt disabled
if (I = 0) then PC  PC + k + 1
None
1/2
Bit and Bit-test Instructions
SBI
P,b
Set bit in I/O register
I/O(P,b)  1
None
2
CBI
P,b
Clear bit in I/O register
I/O(P,b)  0
None
2
LSL
Rd
Logical shift left
Rd(n+1)  Rd(n), Rd(0)  0
Z, C, N, V
1
LSR
Rd
Logical shift right
Rd(n)  Rd(n+1), Rd(7)  0
Z, C, N, V
1
ROL
Rd
Rotate left trough carry
Rd(0)  C,Rd(n+1) Rd(n),C  Rd(7)
Z, C, N, V
1
ROR
Rd
Rotate right through carry
Rd(7) C,Rd(n)  Rd(n+1), C  Rd(0)
Z, C, N, V
1
ASR
Rd
Arithmetic shift right
Rd(n)  Rd(n+1), n=0..6
Z, C, N, V
1
SWAP
Rd
Swap nibbles
Rd(3..0) Rd(7..4),Rd(7..4)  Rd(3..0)
None
1
BSET
s
Flag set
SREG(s)  1
SREG(s)
1
BCLR
s
Flag clear
SREG(s)  0
SREG(s)
1
BST
Rr, b
Bit store from register to T
T  Rr(b)
T
1
Rd(b)  T
None
1
BLD
Note:
1.
12
Rd, b
Bit load from T to register
These Instructions are only available in “16K and 32K parts”
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
3.
Instruction Set Summary (Continued)
Mnemonics Operands
Description
Operation
Flags
#Clocks
SEC
Set carry
C1
C
1
CLC
Clear carry
C0
C
1
SEN
Set negative flag
N1
N
1
CLN
Clear negative flag
N0
N
1
SEZ
Set zero flag
Z1
Z
1
CLZ
Clear zero flag
Z0
Z
1
SEI
Global interrupt enable
I1
I
1
CLI
Global interrupt disable
I0
I
1
SES
Set signed test flag
S1
S
1
CLS
Clear signed test flag
S0
S
1
SEV
Set twos complement overflow.
V1
V
1
CLV
Clear twos complement overflow
V0
V
1
SET
Set T in SREG
T1
T
1
CLT
Clear T in SREG
T0
T
1
SEH
Set half carry flag in SREG
H1
H
1
CLH
Clear half carry flag in SREG
H0
H
1
Data Transfer Instructions
MOV
Rd, Rr
Move between registers
Rd  Rr
None
1
MOVW
Rd, Rr
Copy register word
Rd+1:Rd  Rr+1:Rr
None
1
LDI
Rd, K
Load immediate
Rd  K
None
1
LD
Rd, X
Load indirect
Rd  (X)
None
2
LD
Rd, X+
Load indirect and post-inc.
Rd  (X), X  X + 1
None
2
LD
Rd, – X
Load indirect and pre-dec.
X  X – 1, Rd  (X)
None
2
LD
Rd, Y
Load indirect
Rd  (Y)
None
2
LD
Rd, Y+
Load indirect and post-inc.
Rd  (Y), Y Y + 1
None
2
LD
Rd, – Y
Load indirect and pre-dec.
Y  Y – 1, Rd  (Y)
None
2
LDD
Rd,Y+q
Load indirect with displacement
Rd  (Y + q)
None
2
LD
Rd, Z
Load indirect
Rd  (Z)
None
2
LD
Rd, Z+
Load indirect and post-inc.
Rd  (Z), Z  Z+1
None
2
LD
Rd, –Z
Load indirect and pre-dec.
Z  Z – 1, Rd  (Z)
None
2
LDD
Rd, Z+q
Load indirect with displacement
Rd  (Z + q)
None
2
LDS
Rd, k
Load direct from SRAM
Rd  (k)
None
2
ST
X, Rr
Store indirect
(X)  Rr
None
2
ST
X+, Rr
Store indirect and post-inc.
(X)  Rr, X  X + 1
None
2
ST
– X, Rr
Store indirect and pre-dec.
X  X – 1, (X)  Rr
None
2
ST
Y, Rr
Store indirect
(Y)  Rr
None
2
ST
Y+, Rr
Store indirect and post-inc.
(Y)  Rr, Y  Y + 1
None
2
ST
– Y, Rr
Store indirect and pre-dec.
Y  Y – 1, (Y)  Rr
None
2
STD
Y+q,Rr
Store indirect with displacement
(Y + q)  Rr
None
2
(Z)  Rr
None
2
ST
Note:
1.
Z, Rr
Store indirect
These Instructions are only available in “16K and 32K parts”
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
13
3.
Instruction Set Summary (Continued)
Mnemonics Operands
Description
Operation
Flags
#Clocks
ST
Z+, Rr
Store indirect and post-inc.
(Z)  Rr, Z  Z + 1
None
2
ST
–Z, Rr
Store indirect and pre-dec.
Z  Z – 1, (Z)  Rr
None
2
STD
Z+q,Rr
Store indirect with displacement
(Z + q)  Rr
None
2
STS
k, Rr
Store direct to SRAM
(k)  Rr
None
2
Load program memory
R0  (Z)
None
3
LPM
Rd, Z
Load program memory
Rd  (Z)
None
3
LPM
Rd, Z+
Load program memory and post-inc
Rd  (Z), Z  Z+1
None
3
Store program memory
(Z)  R1:R0
None
-
LPM
SPM
IN
Rd, P
In port
Rd  P
None
1
OUT
P, Rr
Out port
P  Rr
None
1
PUSH
Rr
Push register on stack
STACK  Rr
None
2
POP
Rd
Pop register from stack
Rd  STACK
None
2
None
1
MCU Control Instructions
NOP
No operation
SLEEP
Sleep
(see specific descr. for sleep function)
None
1
WDR
Watchdog reset
(see specific descr. for WDR/timer)
None
1
None
N/A
BREAK
Note:
1.
14
Break
For on-chip debug Only
These Instructions are only available in “16K and 32K parts”
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
4.
Register Summary
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xFF)
Reserved
–
–
–
–
–
–
–
–
(0xFE)
Reserved
–
–
–
–
–
–
–
–
(0xFD)
Reserved
–
–
–
–
–
–
–
–
(0xFC)
Reserved
–
–
–
–
–
–
–
–
(0xFB)
Reserved
–
–
–
–
–
–
–
–
(0xFA)
CANMSG
MSG 7
MSG 6
MSG 5
MSG 4
MSG 3
MSG 2
MSG 1
MSG 0
(0xF9)
CANSTMPH
TIMSTM15
TIMSTM14
TIMSTM13
TIMSTM12
TIMSTM11
TIMSTM10
TIMSTM9
TIMSTM8
(0xF8)
CANSTMPL
TIMSTM7
TIMSTM6
TIMSTM5
TIMSTM4
TIMSTM3
TIMSTM2
TIMSTM1
TIMSTM0
(0xF7)
CANIDM1
IDMSK28
IDMSK27
IDMSK26
IDMSK25
IDMSK24
IDMSK23
IDMSK22
IDMSK21
(0xF6)
CANIDM2
IDMSK20
IDMSK19
IDMSK18
IDMSK17
IDMSK16
IDMSK15
IDMSK14
IDMSK13
(0xF5)
CANIDM3
IDMSK12
IDMSK11
IDMSK10
IDMSK9
IDMSK8
IDMSK7
IDMSK6
IDMSK5
(0xF4)
CANIDM4
IDMSK4
IDMSK3
IDMSK2
IDMSK1
IDMSK0
RTRMSK
–
IDEMSK
(0xF3)
CANIDT1
IDT28
IDT27
IDT26
IDT25
IDT24
IDT23
IDT22
IDT21
(0xF2)
CANIDT2
IDT20
IDT19
IDT18
IDT17
IDT16
IDT15
IDT14
IDT13
(0xF1)
CANIDT3
IDT12
IDT11
IDT10
IDT9
IDT8
IDT7
IDT6
IDT5
(0xF0)
CANIDT4
IDT4
IDT3
IDT2
IDT1
IDT0
RTRTAG
RB1TAG
RB0TAG
(0xEF)
CANCDMOB CONMOB1
CONMOB0
RPLV
IDE
DLC3
DLC2
DLC1
DLC0
(0xEE)
CANSTMOB
DLCW
TXOK
RXOK
BERR
SERR
CERR
FERR
AERR
(0xED)
CANPAGE
MOBNB3
MOBNB2
MOBNB1
MOBNB0
AINC
INDX2
INDX1
INDX0
(0xEC)
CANHPMOB
HPMOB3
HPMOB2
HPMOB1
HPMOB0
CGP3
CGP2
CGP1
CGP0
(0xEB)
CANREC
REC7
REC6
REC5
REC4
REC3
REC2
REC1
REC0
(0xEA)
CANTEC
TEC7
TEC6
TEC5
TEC4
TEC3
TEC2
TEC1
TEC0
(0xE9)
CANTTCH
TIMTTC15
TIMTTC14
TIMTTC13
TIMTTC12
TIMTTC11
TIMTTC10
TIMTTC9
TIMTTC8
(0xE8)
CANTTCL
TIMTTC7
TIMTTC6
TIMTTC5
TIMTTC4
TIMTTC3
TIMTTC2
TIMTTC1
TIMTTC0
(0xE7)
CANTIMH
CANTIM15
CANTIM14
CANTIM13
CANTIM12
CANTIM11
CANTIM10
CANTIM9
CANTIM8
(0xE6)
CANTIML
CANTIM7
CANTIM6
CANTIM5
CANTIM4
CANTIM3
CANTIM2
CANTIM1
CANTIM0
(0xE5)
CANTCON
TPRSC7
TPRSC6
TPRSC5
TPRSC4
TPRSC3
TPRSC2
TRPSC1
TPRSC0
(0xE4)
CANBT3
–
PHS22
PHS21
PHS20
PHS12
PHS11
PHS10
SMP
(0xE3)
CANBT2
–
SJW1
SJW0
–
PRS2
PRS1
PRS0
–
(0xE2)
CANBT1
–
BRP5
BRP4
BRP3
BRP2
BRP1
BRP0
–
(0xE1)
CANSIT1
–
–
–
–
–
–
–
–
(0xE0)
CANSIT2
–
–
SIT5
SIT4
SIT3
SIT2
SIT1
SIT0
(0xDF)
CANIE1
–
–
–
–
–
–
–
–
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
15
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xDE)
CANIE2
–
–
IEMOB5
IEMOB4
IEMOB3
IEMOB2
IEMOB1
IEMOB0
(0xDD)
CANEN1
–
–
–
–
–
–
–
–
(0xDC)
CANEN2
–
–
ENMOB5
ENMOB4
ENMOB3
ENMOB2
ENMOB1
ENMOB0
(0xDB)
CANGIE
ENIT
ENBOFF
ENRX
ENTX
ENERR
ENBX
ENERG
ENOVRT
(0xDA)
CANGIT
CANIT
BOFFIT
OVRTIM
BXOK
SERG
CERG
FERG
AERG
(0xD9)
CANGSTA
–
OVRG
–
TXBSY
RXBSY
ENFG
BOFF
ERRP
(0xD8)
CANGCON
ABRQ
OVRQ
TTC
SYNTTC
LISTEN
TEST
ENA/STB
SWRES
(0xD7)
Reserved
–
–
–
–
–
–
–
–
(0xD6)
Reserved
–
–
–
–
–
–
–
–
(0xD5)
Reserved
–
–
–
–
–
–
–
–
(0xD4)
Reserved
–
–
–
–
–
–
–
–
(0xD3)
Reserved
–
–
–
–
–
–
–
–
(0xD2)
LINDAT
LDATA7
LDATA6
LDATA5
LDATA4
LDATA3
LDATA2
LDATA1
LDATA0
(0xD1)
LINSEL
–
–
–
–
/LAINC
LINDX2
LINDX1
LINDX0
(0xD0)
LINIDR
LP1
LP0
LID5 / LDL1
LID4 / LDL0
LID3
LID2
LID1
LID0
(0xCF)
LINDLR
LTXDL3
LTXDL2
LTXDL1
LTXDL0
LRXDL3
LRXDL2
LRXDL1
LRXDL0
(0xCE)
LINBRRH
–
–
–
–
LDIV11
LDIV10
LDIV9
LDIV8
(0xCD)
LINBRRL
LDIV7
LDIV6
LDIV5
LDIV4
LDIV3
LDIV2
LDIV1
LDIV0
(0xCC)
LINBTR
LDISR
–
LBT5
LBT4
LBT3
LBT2
LBT1
LBT0
(0xCB)
LINERR
LABORT
LTOERR
LOVERR
LFERR
LSERR
LPERR
LCERR
LBERR
(0xCA)
LINENIR
–
–
–
–
LENERR
LENIDOK
LENTXOK
LENRXOK
(0xC9)
LINSIR
LIDST2
LIDST1
LIDST0
LBUSY
LERR
LIDOK
LTXOK
LRXOK
(0xC8)
LINCR
LSWRES
LIN13
LCONF1
LCONF0
LENA
LCMD2
LCMD1
LCMD0
(0xC7)
Reserved
–
–
–
–
–
–
–
–
(0xC6)
Reserved
–
–
–
–
–
–
–
–
(0xC5)
Reserved
–
–
–
–
–
–
–
–
(0xC4)
Reserved
–
–
–
–
–
–
–
–
(0xC3)
Reserved
–
–
–
–
–
–
–
–
(0xC2)
Reserved
–
–
–
–
–
–
–
–
(0xC1)
Reserved
–
–
–
–
–
–
–
–
(0xC0)
Reserved
–
–
–
–
–
–
–
–
(0xBF)
Reserved
–
–
–
–
–
–
–
–
(0xBE)
Reserved
–
–
–
–
–
–
–
–
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
16
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xBD)
Reserved
–
–
–
–
–
–
–
–
(0xBC)
PIFR
–
–
–
–
PEV2
PEV1
PEV0
PEOP
(0xBB)(5)
PIM
–
–
–
–
PEVE2
PEVE1
PEVE0
PEOPE
(0xBA)(5)
PMIC2
POVEN2
PISEL2
PELEV2
PFLTE2
PAOC2
PRFM22
PRFM21
PRFM20
(0xB9)(5)
PMIC1
POVEN1
PISEL1
PELEV1
PFLTE1
PAOC1
PRFM12
PRFM11
PRFM10
(0xB8)(5)
PMIC0
POVEN0
PISEL0
PELEV0
PFLTE0
PAOC0
PRFM02
PRFM01
PRFM00
(0xB7)(5)
PCTL
PPRE1
PPRE0
PCLKSEL
–
–
–
PCCYC
PRUN
(0xB6)
POC
–
–
POEN2B
POEN2A
POEN1B
POEN1A
POEN0B
POEN0A
(0xB5)(5)
PCNF
–
–
PULOCK
PMODE
POPB
POPA
–
–
PSYNC
–
–
PSYNC21
PSYNC20
PSYNC11
PSYNC10
PSYNC01
POCR_RBH
–
–
–
–
(5)
(5)
(5)
(0xB4)
(0xB3)(5)
(0xB2)(5)
POCR_RBL POCR_RB7 POCR_RB6
POCR_RB5
POCR_RB4
(0xB1)(5)
POCR2SBH
–
–
–
–
(5)
(0xB0)
POCR2SBL
POCR2SB7
POCR2SB6
POCR2SB5
POCR2SB4
(0xAF)(5)
POCR2RAH
–
–
–
–
(0xAE)(5)
POCR2RAL POCR2RA7 POCR2RA6
POCR2RA5
POCR2RA4
(0xAD)(5)
POCR2SAH
–
–
–
–
(5)
(0xAC)
POCR2SAL
POCR2SA7
POCR2SA6
POCR2SA5
POCR2SA4
(0xAB)(5)
POCR1SBH
–
–
–
–
(0xAA)(5)
POCR1SBL
POCR1SB7
POCR1SB6
POCR1SB5
POCR1SB4
(0xA9)(5)
POCR1RAH
–
–
–
–
(0xA8)(5)
POCR1RAL POCR1RA7 POCR1RA6
POCR1RA5
POCR1RA4
(0xA7)(5)
POCR1SAH
–
–
–
–
(5)
(0xA6)
POCR1SAL
POCR1SA7
POCR1SA6
POCR1SA5
POCR1SA4
(0xA5)(5)
POCR0SBH
–
–
–
–
(0xA4)(5)
POCR0SBL
POCR0SB7
POCR0SB6
POCR0SB5
POCR0SB4
(0xA3)(5)
POCR0RAH
–
–
–
–
(0xA2)(5)
POCR0RAL POCR0RA7 POCR0RA6
POCR0RA5
POCR0RA4
(0xA1)(5)
POCR0SAH
–
–
–
–
(5)
(0xA0)
PSYNC00
POCR_RB11 POCR_RB10 POCR_RB9
POCR_RB8
POCR_RB3
POCR_RB1
POCR_RB0
POCR2SB11 POCR2SB10 POCR2SB9
POCR2SB8
POCR2SB3
POCR_RB2
POCR2SB1
POCR2SB0
POCR2RA11 POCR2RA10 POCR2RA9
POCR2RA8
POCR2RA3
POCR2RA1
POCR2RA0
POCR2SA11 POCR2SA10 POCR2SA9
POCR2SA8
POCR2SA3
POCR2SB2
POCR2RA2
POCR2SA1
POCR2SA0
POCR1SB11 POCR1SB10 POCR1SB9
POCR1SB8
POCR1SB3
POCR2SA2
POCR1SB1
POCR1SB0
POCR1RA11 POCR1RA10 POCR1RA9
POCR1RA8
POCR1RA3
POCR1RA1
POCR1RA0
POCR1SA11 POCR1SA10 POCR1SA9
POCR1SA8
POCR1SA3
POCR1SB2
POCR1RA2
POCR1SA1
POCR1SA0
POCR0SB11 POCR0SB10 POCR0SB9
POCR0SB8
POCR0SB3
POCR1SA2
POCR0SB1
POCR0SB0
POCR0RA11 POCR0RA10 POCR0RA9
POCR0SB2
POCR0RA8
POCR0RA3
POCR0RA1
POCR0RA0
POCR0SA11 POCR0SA10 POCR0SA9
POCR0RA2
POCR0SA8
POCR0SAL
POCR0SA7
POCR0SA6
POCR0SA5
POCR0SA4
POCR0SA3
POCR0SA2
POCR0SA1
POCR0SA0
(0x9F)
Reserved
–
–
–
–
–
–
–
–
(0x9E)
Reserved
–
–
–
–
–
–
–
–
(0x9D)
Reserved
–
–
–
–
–
–
–
–
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
17
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x9C)
Reserved
–
–
–
–
–
–
–
–
(0x9B)
Reserved
–
–
–
–
–
–
–
–
(0x9A)
Reserved
–
–
–
–
–
–
–
–
(0x99)
Reserved
–
–
–
–
–
–
–
–
(0x98)
Reserved
–
–
–
–
–
–
–
–
(0x97)
AC3CON
AC3EN
AC3IE
AC3IS1
AC3IS0
–
AC3M2
AC3M1
AC3M0
(0x96)
AC2CON
AC2EN
AC2IE
AC2IS1
AC2IS0
–
AC2M2
AC2M1
AC2M0
(0x95)
AC1CON
AC1EN
AC1IE
AC1IS1
AC1IS0
AC1ICE
AC1M2
AC1M1
AC1M0
(0x94)
AC0CON
AC0EN
AC0IE
AC0IS1
AC0IS0
ACCKSEL
AC0M2
AC0M1
AC0M0
–
–
(0x93)
Reserved
–
–
–
–
–
–
(0x92)
DACH
- / DAC9
- / DAC8
- / DAC7
- / DAC6
- / DAC5
- / DAC4
(0x91)
DACL
DAC7 /
DAC1
DAC6 /DAC0
DAC5 / -
DAC4 / -
DAC3 / -
DAC2 / -
DAC1 / -
DAC0 /
DAC9 / DAC3 DAC8 / DAC2
(0x90)
DACON
DAATE
DATS2
DATS1
DATS0
–
DALA
DAOE
DAEN
(0x8F)
Reserved
–
–
–
–
–
–
–
–
(0x8E)
Reserved
–
–
–
–
–
–
–
–
(0x8D)
Reserved
–
–
–
–
–
–
–
–
(0x8C)
Reserved
–
–
–
–
–
–
–
–
(0x8B)
OCR1BH
OCR1B15
OCR1B14
OCR1B13
OCR1B12
OCR1B11
OCR1B10
OCR1B9
OCR1B8
(0x8A)
OCR1BL
OCR1B7
OCR1B6
OCR1B5
OCR1B4
OCR1B3
OCR1B2
OCR1B1
OCR1B0
(0x89)
OCR1AH
OCR1A15
OCR1A14
OCR1A13
OCR1A12
OCR1A11
OCR1A10
OCR1A9
OCR1A8
(0x88)
OCR1AL
OCR1A7
OCR1A6
OCR1A5
OCR1A4
OCR1A3
OCR1A2
OCR1A1
OCR1A0
(0x87)
ICR1H
ICR115
ICR114
ICR113
ICR112
ICR111
ICR110
ICR19
ICR18
(0x86)
ICR1L
ICR17
ICR16
ICR15
ICR14
ICR13
ICR12
ICR11
ICR10
(0x85)
TCNT1H
TCNT115
TCNT114
TCNT113
TCNT112
TCNT111
TCNT110
TCNT19
TCNT18
(0x84)
TCNT1L
TCNT17
TCNT16
TCNT15
TCNT14
TCNT13
TCNT12
TCNT11
TCNT10
(0x83)
Reserved
–
–
–
–
–
–
–
–
(0x82)
TCCR1C
FOC1A
FOC1B
–
–
–
–
–
–
(0x81)
TCCR1B
ICNC1
ICES1
–
WGM13
WGM12
CS12
CS11
CS10
(0x80)
TCCR1A
COM1A1
COM1A0
COM1B1
COM1B0
–
–
WGM11
WGM10
(0x7F)
DIDR1
–
AMP2PD
ACMP0D
AMP0PD
AMP0ND
ADC10D
ADC9D
ADC8D
(0x7E)
DIDR0
ADC7D
ADC6D
ADC5D
ADC4D
ADC3D
ADC2D
ADC1D
ADC0D
(0x7D)
Reserved
–
–
–
–
–
–
–
–
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
18
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x7C)
ADMUX
REFS1
REFS0
ADLAR
–
MUX3
MUX2
MUX1
MUX0
(0x7B)
ADCSRB
ADHSM
ISRCEN
AREFEN
–
ADTS3
ADTS2
ADTS1
ADTS0
(0x7A)
ADCSRA
ADEN
ADSC
ADATE
ADIF
ADIE
ADPS2
ADPS1
ADPS0
(0x79)
ADCH
- / ADC9
- / ADC8
- / ADC7
- / ADC6
- / ADC5
- / ADC4
(0x78)
ADCL
ADC7 /
ADC1
ADC6 / ADC0
ADC5 / -
ADC4 / -
ADC3 / -
ADC2 / -
ADC1 / -
ADC0 /
(0x77)
AMP2CSR
AMP2EN
AMP2IS
AMP2G1
AMP2G0
AMPCMP2
AMP2TS2
AMP2TS1
AMP2TS0
(0x76)
AMP1CSR
AMP1EN
AMP1IS
AMP1G1
AMP1G0
AMPCMP1
AMP1TS2
AMP1TS1
AMP1TS0
(0x75)
AMP0CSR
AMP0EN
AMP0IS
AMP0G1
AMP0G0
AMPCMP0
AMP0TS2
AMP0TS1
AMP0TS0
(0x74)
Reserved
–
–
–
–
–
–
–
–
(0x73)
Reserved
–
–
–
–
–
–
–
–
(0x72)
Reserved
–
–
–
–
–
–
–
–
(0x71)
Reserved
–
–
–
–
–
–
–
–
(0x70)
Reserved
–
–
–
–
–
–
–
–
(0x6F)
TIMSK1
–
–
ICIE1
–
–
OCIE1B
OCIE1A
TOIE1
(0x6E)
TIMSK0
–
–
–
–
–
OCIE0B
OCIE0A
TOIE0
(0x6D)
PCMSK3
–
–
–
–
–
PCINT26
PCINT25
PCINT24
ADC9 / ADC3 ADC8 / ADC2
(0x6C)
PCMSK2
PCINT23
PCINT22
PCINT21
PCINT20
PCINT19
PCINT18
PCINT17
PCINT16
(0x6B)
PCMSK1
PCINT15
PCINT14
PCINT13
PCINT12
PCINT11
PCINT10
PCINT9
PCINT8
(0x6A)
PCMSK0
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
(0x69)
EICRA
ISC31
ISC30
ISC21
ISC20
ISC11
ISC10
ISC01
ISC00
(0x68)
PCICR
–
–
–
–
PCIE3
PCIE2
PCIE1
PCIE0
(0x67)
Reserved
–
–
–
–
–
–
–
–
(0x66)
OSCCAL
–
CAL6
CAL5
CAL4
CAL3
CAL2
CAL1
CAL0
(0x65)
Reserved
–
–
–
–
–
–
–
–
(0x64)
PRR
–
PRCAN
PRPSC
PRTIM1
PRTIM0
PRSPI
PRLIN
PRADC
(0x63)
Reserved
–
–
–
–
–
–
–
–
(0x62)
Reserved
–
–
–
–
–
–
–
–
(0x61)
CLKPR
CLKPCE
–
–
–
CLKPS3
CLKPS2
CLKPS1
CLKPS0
(0x60)
WDTCSR
WDIF
WDIE
WDP3
WDCE
WDE
WDP2
WDP1
WDP0
0x3F (0x5F)
SREG
I
T
H
S
V
N
Z
C
0x3E (0x5E)
SPH
SP15
SP14
SP13
SP12
SP11
SP10
SP9
SP8
0x3D (0x5D)
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
19
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x3C (0x5C)
Reserved
–
–
–
–
–
–
–
–
0x3B (0x5B)
Reserved
–
–
–
–
–
–
–
–
0x3A (0x5A)
Reserved
–
–
–
–
–
–
–
–
0x39 (0x59)
Reserved
–
–
–
–
–
–
–
–
0x38 (0x58)
Reserved
–
–
–
–
–
–
–
–
0x37 (0x57)
SPMCSR
SPMIE
RWWSB
SIGRD
RWWSRE
BLBSET
PGWRT
PGERS
SPMEN
0x36 (0x56)
Reserved
–
–
–
–
–
–
–
–
0x35 (0x55)
MCUCR
SPIPS
–
–
PUD
–
–
IVSEL
IVCE
0x34 (0x54)
MCUSR
–
–
–
–
WDRF
BORF
EXTRF
PORF
0x33 (0x53)
SMCR
–
–
–
–
SM2
SM1
SM0
SE
0x32 (0x52)
MSMCR
0x31 (0x51)
MONDR
0x30 (0x50)
ACSR
AC2O
AC1O
AC0O
0x2F (0x4F)
Reserved
–
–
–
–
–
–
–
–
0x2E (0x4E)
SPDR
SPD7
SPD6
SPD5
SPD4
SPD3
SPD2
SPD1
SPD0
Monitor Stop Mode Control Register
Monitor Data Register
AC3IF
AC2IF
AC1IF
AC0IF
AC3O
0x2D (0x4D)
SPSR
SPIF
WCOL
–
–
–
–
–
SPI2X
0x2C (0x4C)
SPCR
SPIE
SPE
DORD
MSTR
CPOL
CPHA
SPR1
SPR0
0x2B (0x4B)
Reserved
–
–
–
–
–
–
–
–
0x2A (0x4A)
Reserved
–
–
–
–
–
–
–
–
0x29 (0x49)
PLLCSR
–
–
–
–
–
PLLF
PLLE
PLOCK
0x28 (0x48)
OCR0B
OCR0B7
OCR0B6
OCR0B5
OCR0B4
OCR0B3
OCR0B2
OCR0B1
OCR0B0
0x27 (0x47)
OCR0A
OCR0A7
OCR0A6
OCR0A5
OCR0A4
OCR0A3
OCR0A2
OCR0A1
OCR0A0
0x26 (0x46)
TCNT0
TCNT07
TCNT06
TCNT05
TCNT04
TCNT03
TCNT02
TCNT01
TCNT00
0x25 (0x45)
TCCR0B
FOC0A
FOC0B
–
–
WGM02
CS02
CS01
CS00
0x24 (0x44)
TCCR0A
COM0A1
COM0A0
COM0B1
COM0B0
–
–
WGM01
WGM00
0x23 (0x43)
GTCCR
TSM
ICPSEL1
–
–
–
–
–
PSRSYNC
0x22 (0x42)
EEARH
–
–
–
–
–
–
EEAR9
EEAR8
0x21 (0x41)
EEARL
EEAR7
EEAR6
EEAR5
EEAR4
EEAR3
EEAR2
EEAR1
EEAR0
0x20 (0x40)
EEDR
EEDR7
EEDR6
EEDR5
EEDR4
EEDR3
EEDR2
EEDR1
EEDR0
0x1F (0x3F)
EECR
–
–
–
–
EERIE
EEMWE
EEWE
EERE
0x1E (0x3E)
GPIOR0
GPIOR07
GPIOR06
GPIOR05
GPIOR04
GPIOR03
GPIOR02
GPIOR01
GPIOR00
0x1D (0x3D)
EIMSK
–
–
–
–
INT3
INT2
INT1
INT0
0x1C (0x3C)
EIFR
–
–
–
–
INTF3
INTF2
INTF1
INTF0
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
20
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
4.
Register Summary (Continued)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x1B (0x3B)
PCIFR
–
–
–
–
PCIF3
PCIF2
PCIF1
PCIF0
0x1A (0x3A)
GPIOR2
GPIOR27
GPIOR26
GPIOR25
GPIOR24
GPIOR23
GPIOR22
GPIOR21
GPIOR20
0x19 (0x39)
GPIOR1
GPIOR17
GPIOR16
GPIOR15
GPIOR14
GPIOR13
GPIOR12
GPIOR11
GPIOR10
0x18 (0x38)
Reserved
–
–
–
–
–
–
–
–
0x17 (0x37)
Reserved
–
–
–
–
–
–
–
–
0x16 (0x36)
TIFR1
–
–
ICF1
–
–
OCF1B
OCF1A
TOV1
0x15 (0x35)
TIFR0
–
–
–
–
–
OCF0B
OCF0A
TOV0
0x14 (0x34)
Reserved
–
–
–
–
–
–
–
–
0x13 (0x33)
Reserved
–
–
–
–
–
–
–
–
0x12 (0x32)
Reserved
–
–
–
–
–
–
–
–
0x11 (0x31)
Reserved
–
–
–
–
–
–
–
–
0x10 (0x30)
Reserved
–
–
–
–
–
–
–
–
0x0F (0x2F)
Reserved
–
–
–
–
–
–
–
–
0x0E (0x2E)
PORTE
–
–
–
–
–
PORTE2
PORTE1
PORTE0
0x0D (0x2D)
DDRE
–
–
–
–
–
DDE2
DDE1
DDE0
0x0C (0x2C)
PINE
–
–
–
–
–
PINE2
PINE1
PINE0
0x0B (0x2B)
PORTD
PORTD7
PORTD6
PORTD5
PORTD4
PORTD3
PORTD2
PORTD1
PORTD0
0x0A (0x2A)
DDRD
DDD7
DDD6
DDD5
DDD4
DDD3
DDD2
DDD1
DDD0
0x09 (0x29)
PIND
PIND7
PIND6
PIND5
PIND4
PIND3
PIND2
PIND1
PIND0
0x08 (0x28)
PORTC
PORTC7
PORTC6
PORTC5
PORTC4
PORTC3
PORTC2
PORTC1
PORTC0
0x07 (0x27)
DDRC
DDC7
DDC6
DDC5
DDC4
DDC3
DDC2
DDC1
DDC0
0x06 (0x26)
PINC
PINC7
PINC6
PINC5
PINC4
PINC3
PINC2
PINC1
PINC0
0x05 (0x25)
PORTB
PORTB7
PORTB6
PORTB5
PORTB4
PORTB3
PORTB2
PORTB1
PORTB0
0x04 (0x24)
DDRB
DDB7
DDB6
DDB5
DDB4
DDB3
DDB2
DDB1
DDB0
0x03 (0x23)
PINB
PINB7
PINB6
PINB5
PINB4
PINB3
PINB2
PINB1
PINB0
0x02 (0x22)
Reserved
–
–
–
–
–
–
–
–
0x01 (0x21)
Reserved
–
–
–
–
–
–
–
–
0x00 (0x20)
Reserved
–
–
–
–
–
–
–
–
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory
addresses should never be written.
2. I/O registers within the address range 0x00 - 0x1F are directly bit-accessible using the SBI and CBI instructions. In these
registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that, unlike most other AVRs, the CBI and SBI
instructions will only operate on the specified bit, and can therefore be used on registers containing such status flags.
The CBI and SBI instructions work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When addressing I/O
Registers as data space using LD and ST instructions, 0x20 must be added to these addresses. The
ATmega16/32/64/M1/C1 is a complex microcontroller with more peripheral units than can be supported within the 64
location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from 0x60 - 0xFF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
5. These registers are only available on ATmega32/64M1. For other products described in this datasheet, these locations
are reserved.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
21
5.
Errata
5.1
Errata Summary
5.1.1
ATmega16M1/16C1/32M1/32C1 Rev. C (Mask Revision)
●
●
●
5.1.2
22
ADC amplifier measurement is unstable
The AMPCMPx bits return 0
No comparison when amplifier is used as comparator input and ADC input
CRC calculation of diagnostic frames in LIN 2.x.
Wrong TSOFFSET manufacturing calibration value
PD0-PD3 set to outputs and PD4 pulled down following power-on with external reset active.
LIN Break Delimiter
ADC with PSC2-synchronized
ADC amplifier measurement is unstable
PSC emulation
PSC OCRxx register update according to PLOCK2 usage
Read/write instructions of MUXn and REFS1:0
ATmega16M1/16C1/32M1/32C1 Rev. A (Mask Revision)
●
●
●
●
●
●
●
●
●
●
5.1.4
ADC with PSC2-synchronized
ATmega16M1/16C1/32M1/32C1 Rev. B (Mask Revision)
●
●
●
●
●
●
●
●
●
●
●
5.1.3
LIN break delimiter
Inopportune reset of the CANIDM registers
The AMPCMPx bits return 0
No comparison when amplifier is used as comparator input and ADC input
CRC calculation of diagnostic frames in LIN 2.x
PD0-PD3 set to outputs and PD4 pulled down following power-on with external reset active
LIN break delimiter
ADC with PSC2-synchronized
ADC amplifier measurement is unstable
PSC emulation
Read/write instructions of MUXn and REFS1:0
Errata Description
1.
Inopportune Reset of the CANIDM Registers
After the reception of a CAN frame in a MOb, the ID mask registers are reset.
Problem Fix / Workaround
Before enabling a MOb in reception, re-initialize the ID mask registers - CANIDM[4..1].
2.
The AMPCMPx Bits Return 0
When they are read the AMPCMPx bits in AMPxCSR registers return 0.
Problem Fix / Workaround
If the reading of the AMPCMPx bits is required, store the AMPCMPx value in a variable in memory before writing
in the AMPxCSR register and read the variable when necessary.
3.
No Comparison when Amplifier is used as Comparator Input and ADC Input
When it is selected as ADC input, an amplifier receives no clock signal when the ADC is stopped. In that case, if
the amplifier is also used as comparator input, no analog signal is propagated and no comparison is done.
Problem Fix / Workaround
Select another ADC channel rather than the working amplified channel.
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
4.
CRC Calculation of Diagnostic Frames in LIN 2.x.
Diagnostic frames of LIN 2.x use “classic checksum” calculation. Unfortunately, the setting of the checksum model
is enabled when the HEADER is transmitted/received. Usually, in LIN 2.x the LIN/UART controller is initialized to
process “enhanced checksums” and a slave task does not know what kind of frame it will work on before checking
the ID.
Problem Fix / Workaround
This workaround is to be implemented only in case of transmission/reception of diagnostics frames.
a.
Slave task of master node:
Before enabling the HEADER, the master must set the appropriate LIN13 bitvalue in LINCR register.
b.
For slaves nodes, the workaround is in 2 parts:
– Before enabling the RESPONSE, use the following function:
void lin_wa_head(void) {
unsigned char temp;
temp = LINBTR;
LINCR = 0x00;
// It is not a RESET !
LINBTR = (1<<LDISR)|temp;
LINCR = (1<<LIN13)|(1<<LENA)|(0<<LCMD2)|(0<<LCMD1)|(0<<LCMD0);
LINDLR = 0x88;
// If it isn't already done
}
– Once the RESPONSE is received or sent (having RxOK or TxOK as well as
LERR), use the following function:
void lin_wa_tail(void) {
LINCR = 0x00;
// It is not a RESET !
LINBTR = 0x00;
LINCR = (0<<LIN13)|(1<<LENA)|(0<<LCMD2)|(0<<LCMD1)|(0<<LCMD0);
}
The time-out counter is disabled during the RESPONSE when the workaround is set.
5.
Wrong TSOFFSET Manufacturing Calibration value.
Erroneous value of TSOFFSET programmed in signature byte.
(TSOFFSET was introduced from REVB silicon).
Problem Fix / Workaround
To identify RevB with wrong TSOFFSET value, check device signature byte at address 0X3F if value is not 0X42
(Ascii code ‘B’) then use the following formula.
TS_OFFSET(True) = (150*(1-TS_GAIN))+TS_OFFSET.
6.
PD0-PD3 Set to Outputs and PD4 Pulled Down following Power-on with Eternal Reset Active.
At power-on with the external reset signal active the four I/O lines PD0-PD3 may be forced into an output state.
Normally these lines should be in an input state. PD4 may be pulled down with internal 220k resistor. Following
release of the reset line (whatever is the startup time) with the clock running the I/Os PD0-PD4 will adopt their
intended input state.
Problem Fix / Workaround
None
7.
LIN Break Delimitter
In SLAVE MODE, a BREAK field detection error can occur under following conditions. The problem occurs if 2
conditions occur simultaneously:
a.
The DOMINANT part of the BREAK is (N+0.5)*Tbit long with N=13, 14,15,
b.
The RECESSIVE part of the BREAK (BREAK DELIMITER) is equal to 1*Tbit. (see note below)
The BREAK_high is not detected, and the 2nd bit of the SYNC field is interpreted as the
BREAK DELIMITER. The error is detected as a framing error on the first bits of the PID or on subsequent Data or a
Checksum error.
There is no error if BREAK_high is greater than 1 Tbit + 18%. There is no problem in Master mode.
Note:
LIN2.1 Protocol Specification paragraph 2.3.1.1 Break field says: “A break field is always generated by the
master task(in the master node) and it shall be at least 13 nominal bit times of dominant value, followed by a
break delimiter, as shown in Figure 5-1. The break delimiter shall be at least one nominal bit time long.”
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
23
Figure 5-1. The Break Field
Frame
Header
Response
Response space
Break
field
Sync
field
Protected
identifier
field
Data 1
Inter-byte space
Data 2
Data N
Checksum
Inter-byte space
Break
Break
delimiter
Workaround
None
8.
ADC Measurement Reports Abnormal Values with PSC2-synchronized Conversions
When using ADC in synchronized mode, an unexpected extra Single ended conversion can spuriously re-start.
This can occur when the End of conversion and the Trigger event occur at the same time.
Workaround
No workaround
9.
ADC Amplifier Measurement is Unstable
When switching from a single-ended ADC channel to an amplified channel, noise can appear on the next ADC
conversion.
Workaround
After switching from a single ended to an amplified channel, discard the first ADC conversion.
10. PSC Emulation
In emulation mode, TCNTn, OCRnx and ICRn 16-bit registers are accessed via the TEMP register. This can
induce an execution error, in step by step mode due to TEMP register corruption.
Workaround
No workaround
11. PSC OCRxx Register Update according to PLOCK2 Usage
If the PSC is clocked from PLL, and if PLOCK2 bit is changed at the same time as PSC end of cycle occurs, and if
OCRxx registers contents have been changed, then the updated OCRxx registers contents are not predictable.
The cause is a synchronization issue between two registers in two different clock domains (PLL clock which
clocks PSC and CPU clock).
Workaround
Enable the PSC end of cycle interrupt.
At the beginning of PSC EOC interrupt vector, change PLOCK value (OCRxx registers can be updated outside the
interrupt vector).
This process guarantees that UPDATE and PLOCK actions will not occur at the same moment.
12. Read / Write Instructions of MUXn and REFS1:0 bits in the ADMUX Register during Analog Conversion
During Analog conversion, the set or clear instructions of ADMUX channel and reference selection bits will fail.The
bits of the temporary buffer will be written in place of the final bits.
Workaround
Wait for the end of ADC conversion before any write of new channel or reference selection values in ADMUX.
24
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
6.
Ordering Information
Table 6-1.
Memory Size
PSC
Power Supply
Ordering Code
Package
Operation Range
16K
Yes
2.7 to 5.5V
MEGA16M1-15AZ
MA
–40°C to +125°C
16K
32K
Yes
2.7 to 5.5V
MEGA16M1-15MZ
PV
–40°C to +125°C
No
2.7 to 5.5V
MEGA32C1-15AZ
MA
–40°C to +125°C
32K
No
2.7 to 5.5V
MEGA32C1-15MZ
PV
–40°C to +125°C
32K
Yes
2.7 to 5.5V
MEGA32M1-15AZ
MA
–40°C to +125°C
32K
Yes
2.7 to 5.5V
MEGA32M1-15MZ
PV
–40°C to +125°C
64K
No
2.7 to 5.5V
MEGA64C1-15AZ
MA
–40°C to +125°C
64K
No
2.7 to 5.5V
MEGA64C1-15MZ
PV
–40°C to +125°C
64K
Yes
2.7 to 5.5V
MEGA64M1-15AZ
MA
–40°C to +125°C
Yes
2.7 to 5.5V
All packages are Pb free, fully LHF
MEGA64M1-15MZ
PV
–40°C to +125°C
64K
Note:
7.
ATmega16/32/64/M1/C1 Ordering Codes
Package Information
Package Type
MA, 32 - Lead, 7x7mm body size, 1.0mm body thickness
MA
0.8mm lead pitch, thin profile plastic quad flat package (TQFP)
PV, 32-lead, 7.0x7.0mm body, 0.65mm pitch
PV
Quad flat no lead package (QFN)
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
25
7.1
TQFP32
Drawings not scaled
A
A2
A1
D1
32
1
E1
e
L
0°~7°
Top View
C
Side View
D
COMMON DIMENSIONS
(Unit of Measure = mm)
Symbol
MIN
NOM
A
E
MAX
A1
0.05
A2
0.95
0.15
1.00
1.05
D/E
8.75
9.00
9.25
D1/E1
6.90
7.00
7.10
C
0.09
0.20
L
0.45
0.75
b
0.30
b
Bottom View
NOTE
1.20
2
0.45
e
0.80 TYP.
n
32
Notes: 1. This drawing is for general information only. Refer to JEDEC Drawing MS-026, Variation ABA.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25mm per side.
Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch.
3. Lead coplanarity is 0.10mm maximum.
02/29/12
Package Drawing Contact:
[email protected]
26
TITLE
GPC
DRAWING NO.
REV.
MA, 32 Lds - 0.80mm Pitch, 7x7x1.00mm Body size
Thin Profile Plastic Quad Flat Package (TQFP)
AUT
MA
C
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
7.2
QFN32
A
D
J
N
1
0.30
DIA. TYP. LASER MARKING
E
SEATING PLANE
C
0.080 C
Top View
Side View
DRAWINGS NOT SCALED
D2
b
D2/2
COMMON DIMENSIONS IN MM
SYMBOL
E2/2
MIN.
0.80
0.90
1.00
J
0.00
0.02
0.05
D/E
PIN1 ID
1
L
N
See Options
A, B, C
MAX.
A
NOTES
7.00 BSC
D2/E2
E2
NOM.
4.40
4.50
4.60
N
32
e
0.65 BSC
L
0.50
0.60
0.70
b
0.25
0.30
0.37
e
Option A
Option B
Option C
Bottom View
1
1
1
N
N
N
Pin 1# Chamfer
(C 0.30)
Pin 1# Notch
(0.20 R)
Pin 1#
Triangle
Compliant JEDEC Standard MO-220 Variation VKKC
07/26/07
TITLE
Package Drawing Contact:
[email protected]
GPC
PV, 32-Lead 7.0x7.0mm Body, 0.65mm Pitch
Quad Flat No Lead Package (QFN)
DRAWING NO.
REV.
PV
F
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
27
8.
Revision History
Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this
document.
Revision No.
History
7647HS-AVR-01/15
Section 5.1.2 “ATmega16M1/16C1/32M1/32C1 Rev. B (Mask Revision)” on page 22
updated
Number 11. in Section 5.1.4 “Errata Description” on page 24 added
7647GS-AVR-08/14
Section 6 “Ordering Information” on page 25 updated
7647FS-AVR-06/14
Put datasheet in the latest template
7647ES-AVR-07/12
28
Section “Features” on page 2 updated
Table 1 “ATmega32/64/M1/C1 Product Line-up” on page 2 updated
ATmega16/32/64/M1/C1 [SUMMARY DATASHEET]
7647HS–AVR–01/15
XXXXXX
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© 2015 Atmel Corporation. / Rev.: 7647HS–AVR–01/15
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