ATMEGA32M1-AU Atmel, ATMEGA32M1-AU Datasheet - Page 178
ATMEGA32M1-AU
Manufacturer Part Number
ATMEGA32M1-AU
Description
MPU AVR 32K FLASH 20MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32M1-AU
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32M1-AU
Manufacturer:
TYCO
Quantity:
210
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19.8.3
19.9
19.9.1
178
Interrupts
ATmega16M1/32M1/64M1
Error Setting
Interrupt organization
Figure 19-13. Error Detection Procedures in a Data Frame
The CAN channel can detect some errors on the CAN network.
After detecting an error, the CAN channel sends an error frame on network. If the CAN channel
detects an error frame on network, it sends its own error frame.
The different interrupts are:
The general interrupt enable is provided by ENIT bit and the specific interrupt enable for CAN
timer overrun is provided by ENORVT bit.
Rx
Tx
• AERR: Acknowledgment error (Tx only). No detection of the dominant bit in the acknowledge
• In transmission:
• In reception:
• Interrupt on receive completed OK
• Interrupt on transmit completed OK
• Interrupt on error (bit error, stuff error, CRC error, form error, acknowledge error)
• Interrupt on frame buffer full
• Interrupt on “Bus Off” setting
• Interrupt on overrun of CAN timer
slot
The error is set at MOb level
- The identified has matched:
- The identified has not or not yet matched:
The error is set at general level
The error is set at MOb level
– end-of-frame
– error delimiter
– overload delimiter
Form error
Form error
Stuff error
Stuff error
ACK error
CRC error
Bit error
Bit error
SOF
Identifier
Arbitration
RTR
Control
Message Data
CRC
CRC
del.
ACK
ACK
del.
8209D–AVR–11/10
EOF
inter.
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