ATMEGA64M1-15MZ Atmel, ATMEGA64M1-15MZ Datasheet - Page 171

• Manufacturer Part Number: ATMEGA64M1-15MZ
• Description: MCU AVR 64KB FLASH 3PSC 32-VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-15MZ

• Package / Case: 32-VQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Connectivity: CAN, LIN, SPI, UART/USART
• Core Size: 8-Bit
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATADAPCAN01
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

16.2.3.2
16.2.3.3
16.2.3.4
16.2.3.5
16.2.3.6
7647G–AVR–09/11
Synchronization Segment
Propagation Time Segment
Phase Segment 1
Sample Point
Phase Segment 2
Transmission Point
Time Quantum
CAN Frame
(producer)
(producer)
(consumer)
(producer)
(producer)
Segments
Segments
Figure 16-3. CAN Bit Construction
The first segment is used to synchronize the various bus nodes.
On transmission, at the start of this segment, the current bit level is output. If there is a bit state
change between the previous bit and the current bit, then the bus state change is expected to
occur within this segment by the receiving nodes.
This segment is used to compensate for signal delays across the network.
This is necessary to compensate for signal propagation delays on the bus line and through the
transceivers of the bus nodes.
Phase Segment 1 is used to compensate for edge phase errors.
This segment may be lengthened during re-synchronization.
The sample point is the point of time at which the bus level is read and interpreted as the value
of the respective bit. Its location is at the end of Phase Segment 1 (between the two Phase
Segments).
This segment is also used to compensate for edge phase errors.
This segment may be shortened during re-synchronization, but the length has to be at least as
long as the Information Processing Time (IPT) and may not be more than the length of Phase
Segment 1.
SYNC_SEG
propagation
delay
SYNC_SEG
PROP_SEG
Atmel ATmega16/32/64/M1/C1
PROP_SEG
Nominal CAN Bit Time
PHASE_SEG_1
PHASE_SEG_1
PHASE_SEG_2
Sample Point
PHASE_SEG_2
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