AT90CAN32-16AUR Atmel, AT90CAN32-16AUR Datasheet - Page 243
AT90CAN32-16AUR
Manufacturer Part Number
AT90CAN32-16AUR
Description
MCU AVR 32K FLASH 16MHZ 64-TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN32-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
32KB (32K x 8)
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Data Bus Width
8 bit
Mounting Style
SMD/SMT
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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19.4.4
19.4.5
19.5
19.5.1
7679H–CAN–08/08
Message Objects
Fault Confinement
Overload Frame
Number of MObs
Notes:
(c.f.
An overload frame is sent by setting an overload request (OVRQ). After the next reception, the
CAN channel sends an overload frame in accordance with the CAN specification. A status or
flag is set (OVRG) as long as the overload frame is sent.
Figure 19-9. Overload Frame
The MOb is a CAN frame descriptor. It contains all information to handle a CAN frame. This
means that a MOb has been outlined to allow to describe a CAN message like an object. The set
of MObs is the front end part of the “mailbox” where the messages to send and/or to receive are
pre-defined as well as possible to decrease the work load of the software.
The MObs are independent but priority is given to the lower one in case of multi matching. The
operating modes are:
This device has 15 MObs, they are numbered from 0 up to 14 (i=14, no MOb 15).
5. Tsjw = (1 to 4) x Tscl = (SJW[1..0]+ 1) x Tscl
Section 19.7 ”Error Management” on page
– Disabled mode
– Transmit mode
– Receive mode
– Automatic reply
– Frame buffer receive mode
1. The total number of Tscl (Time Quanta) in a bit time must be from 8 to 25.
2. PHS2[2..0] 2 is programmable to be
Instructions
OVRQ bit
OVRG bit
RXCAN
TXCAN
Ident "A"
Cmd
Setting OVRQ bit
Message Data "A"
≤
PHS1[2..0] and
248).
CRC
A
AT90CAN32/64/128
Interframe
≥
Resetting OVRQ bit
1.
Overload Frame
Overload Frame
Ident "B"
243
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