ATMEGA32M1-AUR Atmel, ATMEGA32M1-AUR Datasheet - Page 191
ATMEGA32M1-AUR
Manufacturer Part Number
ATMEGA32M1-AUR
Description
IC MPU AVR 32K 20MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32M1-AUR
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
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
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Quantity
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19.11.2
8209D–AVR–11/10
CANCDMOB – CAN MOb Control and DLC Register
• Bit 4 – BERR: Bit Error (Only in Transmission)
This flag can generate an interrupt. It must be cleared using a read-modify-write software routine
on the whole CANSTMOB register.
The bit value monitored is different from the bit value sent.
Exceptions: the monitored recessive bit sent as a dominant bit during the arbitration field and the
acknowledge slot detecting a dominant bit during the sending of an error frame.
• Bit 3 – SERR: Stuff Error
This flag can generate an interrupt. It must be cleared using a read-modify-write software routine
on the whole CANSTMOB register.
Detection of more than five consecutive bits with the same polarity. This flag can generate an
interrupt.
• Bit 2 – CERR: CRC Error
This flag can generate an interrupt. It must be cleared using a read-modify-write software routine
on the whole CANSTMOB register.
The receiver performs a CRC check on every de-stuffed received message from the start of
frame up to the data field. If this checking does not match with the de-stuffed CRC field, a CRC
error is set.
• Bit 1 – FERR: Form Error
This flag can generate an interrupt. It must be cleared using a read-modify-write software routine
on the whole CANSTMOB register.
The form error results from one or more violations of the fixed form in the following bit fields:
• Bit 0 – AERR: Acknowledgment Error
This flag can generate an interrupt. It must be cleared using a read-modify-write software routine
on the whole CANSTMOB register.
No detection of the dominant bit in the acknowledge slot.
• Bit 7:6 – CONMOB[1:0]: Configuration of Message Object
These bits set the communication to be performed (no initial value after RESET).
• CRC delimiter
• Acknowledgment delimiter
• EOF
Initial Value
Read/Write
Bit
– 00 - disable
– 01 - enable transmission
– 10 - enable reception
– 11 - enable frame buffer reception
CONMOB1
R/W
7
-
CONMOB0
R/W
6
-
RPLV
R/W
5
-
R/W
IDE
4
-
ATmega16M1/32M1/64M1
DLC3
R/W
3
-
DLC2
R/W
2
-
DLC1
R/W
1
-
DLC0
R/W
0
-
CANCDMOB
191
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