ATMEGA16M1-MU Atmel, ATMEGA16M1-MU Datasheet - Page 170
ATMEGA16M1-MU
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
-
- Current page: 170 of 341
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19.5
19.5.1
19.5.2
170
CAN Channel
ATmega16M1/32M1/64M1
Configuration
Bit Timing
The CAN channel can be in:
Figure 19-6. Listening Mode
FSM’s (Finite State Machine) of the CAN channel need to be synchronous to the time quantum.
So, the input clock for bit timing is the clock used into CAN channel FSM’s.
Field and segment abbreviations:
• Enabled mode
• Standby mode
• Listening mode
• BRP: Baud Rate Prescaler
• TQ: Time Quantum (output of Baud Rate Prescaler)
• SYNS: SYNchronization Segment is 1 TQ long
• PRS: PRopagation time Segment is programmable to be 1, 2, ..., 8 TQ long
• PHS1: PHase Segment 1 is programmable to be 1, 2, ..., 8 TQ long
• PHS2: PHase Segment 2 is programmable to be ≤ PHS1 and ≥ INFORMATION
• INFORMATION PROCESSING TIME is 2 TQ
• SJW: (Re) Synchronization Jump Width is programmable between 1 and min (4, PHS1)
PROCESSING TIME
– the CAN channel (internal TxCAN & RxCAN) is enabled
– the input clock is enabled
– the transmitter constantly provides a recessive level (on internal TxCAN) and the
– input clock is enabled
– the registers and pages remain accessible
– enables a hardware loop back, internal TxCAN on internal RxCAN
– provides a recessive level on TXCAN output pin
– does not disable RXCAN input pin
– freezes TEC and REC error counters
In this mode:
In standby mode:
This mode is transparent for the CAN channel:
receiver is disabled
LISTEN
RxCAN
TxCAN
internal
internal
1
0
PD5
PD6
RXCAN
TXCAN
8209D–AVR–11/10
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