ATMEGA16M1-MU Atmel, ATMEGA16M1-MU Datasheet - Page 192

• Manufacturer Part Number: ATMEGA16M1-MU
• Description: IC MCU AVR 16K FLASH 32VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16M1-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -

19.11.3
192
ATmega16M1/32M1/64M1
CANIDT1, CANIDT2, CANIDT3, and CANIDT4 – CAN Identifier Tag Registers
These bits are not cleared once the communication is performed. The user must re-write the
configuration to enable a new communication.
• Bit 5 – RPLV: Reply Valid
Used in the automatic reply mode after receiving a remote frame.
• Bit 4 – IDE: Identifier Extension
IDE bit of the remote or data frame to send.
This bit is updated with the corresponding value of the remote or data frame received.
• Bit 3:0 – DLC[3:0]: Data Length Code
Number of Bytes in the data field of the message.
DLC field of the remote or data frame to send. The range of DLC is from 0 up to 8. If DLC field >8
then effective DLC=8.
This field is updated with the corresponding value of the remote or data frame received. If the
expected DLC differs from the incoming DLC, a DLC warning appears in the CANSTMOB
register.
• This operation is necessary to be able to reset the BXOK flag
• This operation also set the corresponding bit in the CANEN registers
Initial Value
Initial Value
Read/Write
Read/Write
– 0 - reply not ready
– 1 - reply ready and valid
– 0 - CAN standard rev 2.0 A (identifiers length = 11 bits)
– 1 - CAN standard rev 2.0 B (identifiers length = 29 bits)
Bit
Bit
Bit
Bit
V2.0 part A
V2.0 part B
IDT10
IDT12
IDT20
IDT28
31/23
31/23
15/7
IDT2
R/W
15/7
IDT4
R/W
-
-
-
-
30/22
IDT11
IDT19
IDT27
30/22
14/6
IDT1
IDT9
R/W
14/6
IDT3
R/W
-
-
-
-
IDT10
IDT18
IDT26
29/21
29/21
13/5
IDT0
IDT8
R/W
13/5
IDT2
R/W
-
-
-
-
28/20
IDT17
IDT25
28/20
12/4
IDT7
R/W
12/4
IDT1
IDT9
R/W
-
-
-
-
-
IDT16
IDT24
27/19
27/19
11/3
IDT6
R/W
11/3
IDT0
IDT8
R/W
-
-
-
-
-
RTRTAG
RTRTAG
26/18
IDT15
IDT23
26/18
10/2
IDT5
R/W
10/2
IDT7
R/W
-
-
-
-
RB1TAG
IDT14
IDT22
25/17
25/17
IDT4
R/W
IDT6
R/W
9/1
9/1
-
-
-
-
-
RB0TAG
RB0TAG
24/16
IDT13
IDT21
24/16
IDT3
R/W
IDT5
R/W
8/0
8/0
-
-
-
-
8209D–AVR–11/10
CANIDT4
CANIDT3
CANIDT2
CANIDT1
CANIDT4
CANIDT3
CANIDT2
CANIDT1